Mission Areas

Natural Hazards

Mission Areas L2 Landing Page Tabs

Every year in the United States, natural hazards threaten lives and livelihoods and result in billions of dollars in damage. We work with many partners to monitor, assess, and conduct targeted research on a wide range of natural hazards so that policymakers and the public have the understanding they need to enhance preparedness, response, and resilience.

2017 Hurricane Season

2017 Hurricane Season

Four major storms impacted the United States during the 2017 hurricane season. Scientists from the U.S. Geological Survey are analyzing information that will help with recovery from these historic hurricanes and with preparing for the next storm.

Explore the Science

Hazards Risk Reduction

Hazards Risk Reduction

Americans are more at risk from natural hazards today than at any other time in our nation's history. The Science Application for Risk Reduction (SAFRR) Project builds natural hazards resilience through research and communication of hazards science.

Become SAFRR

Natural Hazards Programs

Through these programs, the USGS provides alerts and warnings of geologic hazards and supports the warning responsibilities of the National Oceanic and Atmospheric Administration (NOAA) for geomagnetic storms, tsunamis, and volcanic ash.

Coastal and Marine Geology

Earthquake Hazards

Emergency Management

Geomagnetism

Global Seismographic Network

Landslide Hazards

Volcano Hazards

Learn About Hazards

News

3D computer image shows corrugations beneath the seafloor where tectonic plates move past each other.
February 12, 2018

Imagine dragging your outstretched fingers through wet beach sand, leaving long grooves behind. Scientists recently discovered enormous grooves buried under the seafloor near Costa Rica. The detailed three-dimensional data they used to uncover these corrugations can help them better understand large subduction zone earthquakes and related tsunamis worldwide.

Image: Gas Hydrates Burning
February 9, 2018

The USGS Gas Hydrates Project has published two new Fact Sheets. One describes the goals and scope of the Project and the other describes "Gas Hydrates in Nature," including where they form, how they are studied, and why researchers focus on gas hydrates for energy resource and environmental studies. 

360 degree video captured this photograph during a normal high tide at Manhattan Beach, Los Angeles.
February 7, 2018

USGS oceanographer Juliette Finzi Hart shot 360-degree videos of king tides—the highest high tides of the year—throughout the Los Angeles region in 2016 and 2017.

Costs and consequences of natural hazards can be enormous; each year more people and infrastructure are at risk. We develop and apply hazards science to help protect U.S. safety, security, and economic well being. These scientific observations, analyses, and research are crucial for the Nation to become more resilient to natural hazards.

Read Our Science Strategy
Filter Total Items: 71
Two adjacent poles holding video cameras near top, one control box near bottom, one man holding small tool near control box.
Date Published: February 16, 2018
Status: Active

Two video cameras atop the Dream Inn hotel in Santa Cruz, California, overlook the coast in northern Monterey Bay. Camera 1 looks eastward over Santa Cruz Main Beach and boardwalk, while Camera 2 looks southward over Cowells Beach. The cameras are part of the Remote Sensing Coastal Change project.

Contacts: Shawn Harrison
tential coastal change impacts for Hurricane Matthew - Oct. 7, 2016
Date Published: February 1, 2018
Status: Active

Hurricane Nate coastal change forecast and pre- and post-storm photos documenting coastal change.

Photo Highlighting Predicted Erosion and Inundation areas in Texas
Date Published: February 1, 2018
Status: Completed

Hurricane Harvey coastal change forecast and pre- and post-storm photos documenting coastal change.

Hurricane Irma-response page intro slide
Date Published: January 30, 2018
Status: Active

Hurricane Irma coastal change forecast and pre- and post-storm photos documenting coastal change.

Tracklines map
Date Published: January 30, 2018
Status: Completed

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. In order to better constrain controls on coastal vulnerability and evolution, the region’s sediment sources, transport pathways and sinks must be identified. This project defines the geologic framework of the Delmarva coastal system through geophysical...

April 2011 in waterfront area of Tohoku, Japan following the March 11, 2011 earthquake and tsunami.
Date Published: January 29, 2018
Status: Active

The nation's coastlines are vulnerable to the interrelated hazards posed by earthquakes, landslides, and tsunamis.

Adult and juvenile Piping Plovers (Kaiti Titherington/USFWS)
Date Published: January 29, 2018
Status: Active

Policy-makers, individuals from government agencies, and natural resource managers are under increasing pressure to manage changing coastal areas to meet social, economic, and natural resource demands, particularly under a regime of sea-level rise. Scientific knowledge of coastal processes and habitat-use can support decision-makers as they balance these often-conflicting human and ecological...

Potential coastal change impacts for Hurricane Nate - Oct. 7, 2017
Date Published: January 25, 2018
Status: Completed

Hurricane Nate coastal change forecast and pre- and post-storm photos documenting coastal change.

Coastal Change Hazards Portal
Date Published: January 25, 2018
Status: Active

The USGS National Assessment of Storm-Induced Coastal Change Hazards group releases coastal change forecasts and pre- and post-storm photos documenting coastal change for landfalling storms.

Left: Map of Tampa Bay area and Gulf of Mexico. Colored balloons along shore. Right: total-water-level graph (top) and diagram.
Date Published: January 24, 2018

The viewer shows predictions of the timing and magnitude of water levels at the shoreline and potential impacts to coastal dunes. Research is part of the  National Assessment of Coastal Change Hazards project.

Contacts: Joseph Long
Coastal Change Hazards Portal
Date Published: January 23, 2018
Status: Active

The assessment methodology is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast will respond to the direct landfall of extreme storms. Research part of the National...

Colored shaded-relief bathymetry map of Monterey Canyon and Vicinity, California
Date Published: January 21, 2018
Status: Active

Seafloor resource managers and modelers need seafloor maps that can be combined in GIS, modeling, and statistical analysis environments and related successfully to biologic and oceanographic data. The Marine Geomorphology, Evolution, and Habitats Project encompasses mapping activities and the development of new mapping systems and methodologies. The emphasis is on the role of geologic...

Contacts: Guy Cochrane
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location map of sample locations from the north and south shores of long island, new york
February 15, 2018

Coastal Groundwater Chemical Data from the North and South Shores of Long Island, New York

Groundwater data were collected in the spring and fall of 2008 from three sites representing different geological settings and biogeochemical conditions within the surficial glacial aquifer of Long Island, NY. 

Map of the south Atlantic coast
February 15, 2018

National Assessment of Shoreline Change: A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Southeast Atlantic Coast

U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards.  One component of this research effort, the National Assessment of Shoreline Change Project documents changes in shoreline position as a proxy for coastal change. 

Map of Gulf of Mexico
February 15, 2018

National Assessment of Shoreline Change: A GIS compilation of Updated Vector Shorelines and Associated Shoreline Change Data for the Gulf of Mexico Coast

U.S. Geological Survey (USGS) is conducting a national assessment of coastal change hazards.  One component of this research effort, the National Assessment of Shoreline Change Project, documents changes in shoreline position as a proxy for coastal change. Shoreline position is an easily understood feature representing the historical location of a beach position through time. 

Aerial images of Black Beach, Falmouth, MA
February 15, 2018

Topographic, imagery, and raw data associated with unmanned aerial systems (UAS) flights over Black Beach, Falmouth, Massachusetts on 18 March 2016

The U.S. Geological Survey worked in collaboration with members of the Marine Biological Laboratory and Woods Hole Analytics at Black Beach, in Falmouth, Massachusetts to explore scientific research demands on UAS technology for topographic and habitat mapping applications. 

Spitsbergen location map
February 15, 2018

Data and calculations to support the study of the sea-air flux of methane and carbon dioxide on the West Spitsbergen margin in June 2014

This dataset collected on the West Spitsbergen margin during U.S. Geological Survey Coastal and Marine Geology Program Field Activity 2014-013-FA, which was carried out in conjunction with the University of Tromso and the GEOMAR Helmholtz Centre for Ocean Research Kiel on the R/V Helmer Hanssen.

study site and model for coastal karst subterranean estuary
February 15, 2018

Water column physical and chemical properties of Cenote Bang, a component of the Ox Bel Ha cave network within the subterranean estuary coastal aquifer of the Yucatan Peninsula, from December 2013 to January 2016

This dataset, collected during four field events during U.S. Geological Survey (USGS) Coastal and Marine Geology Program Field Activities 2015-013-FA and 2016-003-FA in conjunction with Texas A&M University reports geochemical properties of the water column from Cenote Bang, a component of the Ox Bel Ha cave network that is located 5 km inland from the coast. 

summary of key findings for scenario-based assessment for Nor'easters
February 14, 2018

Key Findings for Scenario-Based Assessment for Nor'easters

Percentage of sandy beaches very likely (probability > 0.9) to experience erosion associated with collision, overwash, and inundation during class 1-3 nor’easter impact.

summary of key findings for scenario-based assessment for hurricanes
February 14, 2018

Key Findings for Scenario-Based Assessment for Hurricanes

Percentage of sandy beaches very likely (probability > 0.9) to experience erosion associated with collision, overwash, and inundation during category 1-5 hurricane landfall.

Bathymetric terrain model of Queen Charlotte Fault area, with multichannel seismic lines in red
February 14, 2018

Multichannel sparker seismic-reflection data of field activity 2016-656-FA; between Icy Point and Dixon Entrance, Gulf of Alaska from 2016-08-07 to 2016-08-26

This data release contains high-resolution multichannel seismic (MCS) reflection data collected in August of 2016 along the southeast Alaska continental margin. Structure perpendicular MCS profiles were collected along the Queen Charlotte-Fairweather fault. The data were collected aboard the R/V Norseman using a Delta sparker sound source and recorded on a 64-channel digital streamer.

Map of marsh shoreline change rates for Edwin B Forsythe National Wildlife Refuge
February 12, 2018

Shoreline change rates in salt marsh units in Edwin B. Forsythe National Wildlife Refuge, New Jersey

This dataset displays shoreline change rates at the Edwin B. Forsythe National Wildlife Refuge (EBFNWR), which spans over Great Bay, Little Egg Harbor, and Barnegat Bay in New Jersey, USA

Image of sand dollars on the sea floor
February 12, 2018

Sea floor sediment samples, seabed imagery, and CTD data collected in Stellwagen Bank National Marine Sanctuary, MA in 2015, U.S. Geological Survey Field Activity 2015-062-FA

This field activity is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics.

Overview of 4 terrain models
February 12, 2018

Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf

Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes.  A Triangulated Irregular Network was created from public-domain bathymetric and LiDAR data using the ArcGIS terrain-model framework and then interpolated into a 32-bit GeoTiff.

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Screenshot Location of 1D Earth Resistivity Models
October 16, 2017

Location of 1D Earth Resistivity Models with respect to Physiographic Regions of the USA

Fish on seafloor, Offshore Northern California
April 14, 2016

CSMP is a cooperative program to create a comprehensive coastal and marine geologic and habitat base map series for all of California's State waters. Data collected during this project reveal the seafloor offshore of the California coast in unprecedented detail and provide an ecosystem context for the effective management of this precious marine resource.

Map shows color-coded seafloor character offshore of Monterey, California
March 7, 2016

This portal is a “go to” source for maps related to ocean and coastal mapping. Information is organized by geography or region, by theme, and by the year data was published.

USGS science for a changing world logo
March 7, 2016

Maps of flood and high flow conditions within the U.S.

USGS science for a changing world logo
March 7, 2016

Map of USGS Magnetic observatory locations.

USGS science for a changing world logo
March 7, 2016

We conduct post-fire debris-flow hazard assessments for select fires in the Western U.S. We use geospatial data related to basin morphometry, burn severity, soil properties, and rainfall characteristics to estimate the probability and volume of debris flows that may occur in response to a design storm.

USGS science for a changing world logo
March 7, 2016

This map and the original delineate areas where large numbers of landslides have occurred and areas which are susceptible to landsliding in the conterminous United States.

USGS science for a changing world logo
March 7, 2016

The purpose of the Inventory Project is to provide a framework and tools for displaying and analyzing landslide inventory data collected in a spatially aware digital format from individual states.

March 7, 2016

The Planetary Geologic Mapping Program serves the international science community through the production of high-quality and refereed geologic maps of planetary bodies. This program is in coordination between NASA science programs and the USGS Astrogeology Science Center.

USGS science for a changing world logo
March 7, 2016

View recent events or search for past earthquakes. Optimized for mobile and desktop.

USGS science for a changing world logo
March 7, 2016

View recent events or search for past earthquakes. Optimized for mobile and desktop.

Filter Total Items: 59
Year Published: 2017

Designing a solution to enable agency-academic scientific collaboration for disasters

As large-scale environmental disasters become increasingly frequent and more severe globally, people and organizations that prepare for and respond to these crises need efficient and effective ways to integrate sound science into their decision making. Experience has shown that integrating nongovernmental scientific expertise into disaster...

Mease, Lindley A.; Gibbs-Plessl, Theodora; Erickson, Ashley; Ludwig, Kristin A.; Reddy, Christopher M.; Lubchenco, Jane
Attribution: Natural Hazards
Mease, L. A., T. Gibbs-Plessl, A. L. Erickson, K. A. Ludwig, C. M. Reddy, and J. Lubchenco. 2017. Designing a solution to enable agency-academic scientific collaboration for disasters. Ecology and Society 22(2):18.

Year Published: 2017

Reducing risk where tectonic plates collide—U.S. Geological Survey subduction zone science plan

The U.S. Geological Survey (USGS) serves the Nation by providing reliable scientific information and tools to build resilience in communities exposed to subduction zone earthquakes, tsunamis, landslides, and volcanic eruptions. Improving the application of USGS science to successfully reduce risk from these events relies on whole community efforts...

Gomberg, Joan S.; Ludwig, Kristin A.; Bekins, Barbara; Brocher, Thomas M.; Brock, John C.; Brothers, Daniel; Chaytor, Jason D.; Frankel, Arthur; Geist, Eric L.; Haney, Matt; Hickman, Stephen H.; Leith, William S.; Roeloffs, Evelyn A.; Schulz, William H.; Sisson, Thomas W.; Wallace, Kristi; Watt, Janet; Wein, Anne
Gomberg, J.S., Ludwig, K.A., Bekins, B.A., Brocher, T.M., Brock, J.C., Brothers, Daniel, Chaytor, J.D., Frankel, A.D., Geist, E.L., Haney, Matthew, Hickman, S.H., Leith, W.S., Roeloffs, E.A., Schulz, W.H., Sisson, T.W., Wallace, Kristi, Watt, J.T., Wein, Anne, 2017, Reducing risk where tectonic plates collide—U.S. Geological Survey subduction zone science plan: U.S. Geological Survey Circular 1428, 45 p., https://doi.org/10.3133/cir1428.

Year Published: 2017

Reducing risk where tectonic plates collide

Most of the world’s earthquakes, tsunamis, landslides, and volcanic eruptions are caused by the continuous motions of the many tectonic plates that make up the Earth’s outer shell. The most powerful of these natural hazards occur in subduction zones, where two plates collide and one is thrust beneath another. The U.S. Geological Survey’s (USGS) “...

Gomberg, Joan S.; Ludwig, Kristin A.
Gomberg, J.S., and Ludwig, K.A., 2017, Reducing risk where tectonic plates collide: U.S. Geological Survey Fact Sheet 2017–3024, 4 p., https://doi.org/10.3133/fs20173024.

Year Published: 2017

Observations and a linear model of water level in an interconnected inlet-bay system

A system of barrier islands and back-barrier bays occurs along southern Long Island, New York, and in many coastal areas worldwide. Characterizing the bay physical response to water level fluctuations is needed to understand flooding during extreme events and evaluate their relation to geomorphological changes. Offshore sea level is one of the...

Aretxabaleta, Alfredo; Ganju, Neil K.; Butman, Bradford; Signell, Richard
Aretxabaleta, A. L., N. K. Ganju, B. Butman, and R. P. Signell (2017), Observations and a linear model of water level in an interconnected inlet-bay system, J. Geophys. Res. Oceans, 122, doi:10.1002/2016JC012318.

Year Published: 2017

Inner-shelf ocean dynamics and seafloor morphologic changes during Hurricane Sandy

Hurricane Sandy was one of the most destructive hurricanes in US history, making landfall on the New Jersey coast on Oct 30, 2012. Storm impacts included several barrier island breaches, massive coastal erosion, and flooding. While changes to the subaerial landscape are relatively easily observed, storm-induced changes to the adjacent shoreface...

Warner, John C.; Schwab, William C.; List, Jeffrey; Safak, Ilgar; Liste, Maria; Baldwin, Wayne E.
Warner, J.C., Schwab, W.C., List, J.H., Safak, I., Liste, M., and Baldwin, W, 2017, Inner-shelf ocean dynamics and seafloor morphologic changes during Hurricane Sandy: Continental Shelf Research, v. 138, 1-18 p doi:10.1016/j.csr.2017.02.003.

Year Published: 2017

Evidence for coseismic subsidence events in a southern California coastal saltmarsh

Paleoenvironmental records from a southern California coastal saltmarsh reveal evidence for repeated late Holocene coseismic subsidence events. Field analysis of sediment gouge cores established discrete lithostratigraphic units extend across the wetland. Detailed sediment analyses reveal abrupt changes in lithology, percent total organic matter,...

Leeper, Robert; Rhodes, Brady P.; Kirby, Matthew E.; Scharer, Katherine M.; Carlin, Joseph A.; Hemphill-Haley, Eileen; Avnaim-Katav, Simona; MacDonald, Glen M.; Starratt, Scott W.; Aranda, Angela
Attribution: Natural Hazards
Leeper, R., Rhodes, B., Kirby, M., Scharer, K., Carlin, J., Hemphill-Haley, E., Avnaim-Katav, S., MacDonald, G., Starratt, S., Arranda, A.,

Year Published: 2017

Development of a coupled wave-flow-vegetation interaction model

Emergent and submerged vegetation can significantly affect coastal hydrodynamics. However, most deterministic numerical models do not take into account their influence on currents, waves, and turbulence. In this paper, we describe the implementation of a wave-flow-vegetation module into a Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST)...

Beudin, Alexis; Kalra, Tarandeep S.; Ganju, Neil K.; Warner, John C.
Alexis Beudin, Tarandeep S. Kalra, Neil K. Ganju, John C. Warner, Development of a coupled wave-flow-vegetation interaction model, Computers & Geosciences, Volume 100, March 2017, Pages 76-86, ISSN 0098-3004, http://dx.doi.org/10.1016/j.cageo.2016.12.010.

Year Published: 2016

Barrier island breach evolution: Alongshore transport and bay-ocean pressure gradient interactions

Physical processes controlling repeated openings and closures of a barrier island breach between a bay and the open ocean are studied using aerial photographs and atmospheric and hydrodynamic observations. The breach site is located on Pea Island along the Outer Banks, separating Pamlico Sound from the Atlantic Ocean. Wind direction was a major...

Safak, Ilgar; Warner, John C.; List, Jeffrey
Safak, I., J. C. Warner, and J. H. List (2016), Barrier island breach evolution: Alongshore transport and bay-ocean pressure gradient interactions, J. Geophys. Res. Oceans, 121, doi:10.1002/2016JC012029.

Year Published: 2016

Biogeomorphic classification and images of shorebird nesting sites on the U.S. Atlantic coast

Atlantic coast piping plover (Charadrius melodus) nest sites are typically found on low-lying beach and dune systems, which respond rapidly to coastal processes like sediment overwash, inlet formation, and island migration that are sensitive to climate-related changes in storminess and the rate of sea-level rise. Data were obtained to understand...

Sturdivant, Emily; Thieler, E. Robert; Zeigler, Sara; Winslow, Luke; Hines, Megan K.; Read, Jordan S.; Walker, Jordan I.
Sturdivant, E.J., Thieler, E.R., Zeigler, S.L., Winslow, L.A., Hines, M.K., Read, J.S., Walker, J.I., 2016, Biogeomorphic classification and images of shorebird nesting sites on the U.S. Atlantic coast: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F70V89X3.

Year Published: 2016

High-resolution geophysical data collected along the Delmarva Peninsula, 2014, USGS Field Activity 2014-002-FA

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. A U.S. Geological Survey cruise was conducted in the summer of 2014 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework...

Pendleton, Elizabeth; Ackerman, Seth D.; Baldwin, Wayne E.; Danforth, William W.; Foster, David S.; Thieler, E. Robert; Brothers, Laura L.
Pendleton, E.A., Ackerman, S.D., Baldwin, W.E., Danforth, W.W., Foster, D.S., Thieler, E.R., and Brothers, L.L. 2015, High-resolution geophysical data collected along the Delmarva Peninsula, 2014, USGS Field Activity 2014-002-FA (ver. 2.0, March 2015): U.S. Geological Survey data release. http://dx.doi.org/10.5066/F7MW2F60

Year Published: 2016

Oceanographic and water-quality measurements collected south of Martha’s Vineyard, MA, 2014–2015

This web page provides access to oceanographic and water-quality observations made at seven sites near the Martha’s Vineyard Coastal Observatory (MVCO) as part of National Science Foundation “Bottom Stress and the Generation of Vertical Vorticity Over the Inner Shelf” project. The objective was to measure bottom stress at several locations with...

Montgomery, Ellyn T.; Sherwood, Christopher R.; Martini, Marinna A.; Trowbridge, Jannelle; Scully, M.; Brosnahan, Sandra M.
Montgomery, E.T., Sherwood, C.R., Martini, M.A., Trowbridge, J., Scully, M, and Brosnahan, S.M., 2016, Oceanographic and water-quality measurements collected south of Martha’s Vineyard, MA, 2014–2015: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7542KQR.

Year Published: 2016

Low-altitude aerial imagery and related field observations associated with unmanned aerial systems (UAS) flights over Coast Guard Beach, Nauset Spit, Nauset Inlet, and Nauset Marsh, Cape Cod National Seashore, Eastham, Massachusetts on 1 March 2016

Low-altitude (approximately 120 meters above ground level) digital images were obtained from cameras mounted in a fixed-wing unmanned aerial vehicle (UAV) flown from the lawn adjacent to the Coast Guard Beach parking lot on 1 March, 2016. The UAV was a Skywalker X8 operated by Raptor Maps, Inc., contractors to the U.S. Geological Survey (USGS)....

Sherwood, Christopher R.
Sherwood, C., 2016, Low-altitude aerial imagery and related field observations associated with unmanned aerial systems (UAS) flights over Coast Guard Beach, Nauset Spit, Nauset Inlet, and Nauset Marsh, Cape Cod National Seashore, Eastham, Massachusetts on 1 March 2016: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7CN721H.

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Location 2: Photo-pair shows Irma impacts at Palm Coast, FL
2176 (approx.)
Location 2: Elevated water levels during Hurricane Irma overtopped low dunes and transported sand across the roadway in Palm Coast. The predicted probability of overwash for this location was 76%.
Location 4: Photo-pair shows Irrma destroyed house at S. Ponte Vedra, FL
2176 (approx.)
Location 4: Three homes were destroyed in South Ponte Vedra when waves and surge from Hurricane Irma eroded the dune face and scoured areas behind the seawall, undermining their foundations. Erosion is often more severe on sections of beach behind and adjacent to the end of a section of seawall. The predicted probability of dune erosion for this location was 99%.
Location 6: Photo-pair shows Irma caused overwash, beach erosion, FL
2176 (approx.)
Location 6: The beach near Mayport illustrates the processes of overwash and dune erosion due to Hurricane Irma. Lower elevation dunes, roads, and walkways overwashed due to high surge and waves while the higher elevation dunes show scarping indicative of dune erosion. Predicted probabilities of dune erosion and overwash were 97% and 57% for this location. The predicted probability of coastal...
Location 8: Photo-pair shows Irma caused erosion, Little Talbot Island, FL
2176 (approx.)
Location 8: The northern end of Little Talbot Island illustrates the processes of overwash and dune erosion due to Hurricane Irma. The low-lying sand spit near the top of the image overwashed due to high surge and waves while the dunes to the south show scarping indicative of dune erosion. Predicted probabilities of dune erosion and overwash were 98% and 73% for this location.
Location 1: Photo-pair shows Irma impacts at Daytona Beach, FL
2176 (approx.)
Location 1: High waves during Hurricane Irma eroded the wide stretch of sand at Daytona Beach, but did not overtop the seawall. The predicted probability of overwash for this location was 30%.
Location 3: Photo-pair shows Irma impacts near Matanzas area FL
2176 (approx.)
Location 3: In the Matanzas area, elevated water levels during Hurricane Irma overtopped low dunes and transported sand landward, covering vegetation and filling in a small pond. The predicted probability of overwash for this location was 87%.
Location 5: Photo-pair shows Irma caused dune erosion at Ponte Vedra, FL
2176 (approx.)
Location 5: Waves from Hurricane Irma reached the toe of the dunes in Ponte Vedra, causing the dune face to erode and leaving a steep scarp. The predicted probability of dune erosion for this location was 58%.
Location 7: Photo-pair shows Irma caused overwash, Huguenot Beach, FL
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Location 7: Elevated water levels during Hurricane Irma overtopped the dunes in this section of Huguenot Park, transporting sand landward over the vegetation and into the lagoon. The predicted probability of overwash for this location was only 41%.
Participants of workshop, about 30 adults, standing in two rows against a tropical backdrop.
2018 (approx.)
International participants from Australia, New Zealand, Fiji, the Republic of the Marshall Islands, Hawaii, Spain, France, Belgium, the Netherlands, Germany, Israel, and the U.S. attended a workshop on “Understanding Flooding on Reef-lined Island Coastlines”, February 5-7, 2018.
USGS personnel on the fantail of the R/V Savannah
2018 (approx.)
Sediment transport team members manage tag lines to control the motion of the bottom lander as it is deployed.
USGS personnel on the fantail of the R/V Savannah
2018 (approx.)
Sediment transport team members prepare to deploy a buoy instrumented with Meteorological sensors
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3D computer image shows corrugations beneath the seafloor where tectonic plates move past each other.
February 12, 2018

Imagine dragging your outstretched fingers through wet beach sand, leaving long grooves behind. Scientists recently discovered enormous grooves buried under the seafloor near Costa Rica. The detailed three-dimensional data they used to uncover these corrugations can help them better understand large subduction zone earthquakes and related tsunamis worldwide.

Image: Gas Hydrates Burning
February 9, 2018

The USGS Gas Hydrates Project has published two new Fact Sheets. One describes the goals and scope of the Project and the other describes "Gas Hydrates in Nature," including where they form, how they are studied, and why researchers focus on gas hydrates for energy resource and environmental studies. 

360 degree video captured this photograph during a normal high tide at Manhattan Beach, Los Angeles.
February 7, 2018

USGS oceanographer Juliette Finzi Hart shot 360-degree videos of king tides—the highest high tides of the year—throughout the Los Angeles region in 2016 and 2017.

Wet sand on a beach.
February 5, 2018

Acting deputy director of the USGS Pacific Coastal and Marine Science Center Nadine Golden attended a workshop on restoring a sand-mining operation on California’s Monterey Bay.

Map showing part of southern Alaska and Gulf of Alaska, with orange star in Gulf & white dots strung out along Aleutian Islands
January 30, 2018

One week ago, on January 23rd at 12:31 a.m. local time, Alaskans were rocked by a magnitude 7.9 earthquake, with an epicenter in the Gulf of Alaska, about 350 miles southwest of Anchorage, and about 175 miles southeast of Kodiak Island.

Rob Wyland guides students through the USGS Marine Facility.
January 29, 2018

On January 17, 4th and 5th graders from De Laveaga Elementary School visited the USGS Pacific Coastal and Marine Science Center in Santa Cruz, California.

Kate Scharer
January 26, 2018

Days after fatal debris flows devastated Southern California’s Montecito community,  a team of U.S. Geological Survey geologists joined county, state, and federal partners to survey and  evaluate the aftermath.

 

Image shows a map of Florida with USGS groundwater monitoring stations
January 24, 2018

At 12:32 am Alaska time on January 23, 2018, a magnitude 7.9 earthquake shook Alaska residents out of their beds and set off fears of a tsunami all down the West Coast. Fortunately, the tsunami was only a few inches in height, but within an hour of the earthquake in Alaska, waves of a different sort were hitting far away in Florida. 

flyer advertising Jan 2018 public lecture
January 23, 2018

News reporters are invited to attend an illustrated public lecture to learn how U.S. Geological Survey scientists and partners are developing ShakeAlert. The ShakeAlert earthquake early warning system will begin limited operations this year. Alerts could save lives and properties but several challenges remain. With millions at risk, why isn't full public alerting happening yet?

Regional map showing the Gulf of Alaska and epicenter of M7.9 earthquake
January 23, 2018

The USGS has up-to-date details on the January 23, 2018 event.

Mexico City after Sept. 19, 2017 earthquake
January 18, 2018

USGS seismologist Elizabeth Cochran studied the performance of Mexico City’s earthquake early warning system,  during devastating Sept. 19, 2017 event

 

Screenshot from interactive mapping tool that displays projections of flooding given sea level rise and other factors.
January 17, 2018

USGS geologist Patrick Barnard spoke to the public at a “Coffee and King Tides” gathering held in Half Moon Bay, California, on December 4.