Mission Areas

Natural Hazards

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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

Alongshore-varying forecasts of barrier island response to sea-level rise
December 12, 2017

A new article combines geomorphological and pre- and post-Hurricane Sandy observations from coastal New Jersey with a morphodynamic model to forecast the response of barrier islands to various rates of sea-level rise and explores the impact of human alterations on forecasted behavior.

Long Island Sound Survey team
December 12, 2017

Geological Sampling (videos, photos and sediment samples) in Long Island Sound on the newly stretched R/V Connecticut with scientist from USGS, UConn and Univ of New Haven

Lake Powell
December 12, 2017

Develop a new bathymetry map of Lake Powell, UT-AZ, and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers. Bathymetric data, acoustic backscatter imagery, and limited CHIRP sub-bottom data were collected by the USGS Utah Water Science Center (UTWSC) and Woods Hole Coastal and Marine Science Center (WHCMSC) within Lake Powell, October - November, 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: 50
A slideshow of images that show a breach being formed on a beach on Fire Island, New York.
Date Published: November 7, 2017
Status: Active

Fire Island Coastal Change research is primarily focused on understanding the long- and short-term behavior of the Fire Island barrier island system.

Photograph of damaged homes on Fire Island following Hurricane Sandy.
Date Published: December 5, 2016

As Hurricane Sandy moved northward along the U.S. Atlantic coast in October 2012, USGS scientists worked to determine where and how the storm’s waves and surge might dramatically reshape the beaches and dunes that stand between the storm and coastal developments.

Oblique aerial photograph of an estuarine wetland area.
Date Published: December 5, 2016

A quantitative understanding of long- and short-term physical changes along wetland coastlines is required to support assessments of ecological and societal vulnerabilities to environmental change. The Barrier Island and Estuarine Wetland Physical Change Assessment project will integrate a wetland assessment with existing coastal-change hazard assessments for the adjacent dunes and beaches,...

Tsunami Messaging Image
Date Published: September 2, 2016

SAFRR brings together tsunami and communication experts to discuss potential changes to safety messages, based on improved scientific understanding of Hawaii's tsunami hazard.

Tsunami Awareness Image
Date Published: September 1, 2016

Students at Art Center College of Design learned about tsunamis from SAFRR partners in natural science, social science, and emergency management, then designed a fun, engaging, multi-faceted awareness campaign.

homes damaged by hurricane Sandy on Fire Island, New York
Date Published: April 13, 2016

Scientists perform a range of studies that document, assess, and model coastal change, risk, and vulnerability. Studies include historical shoreline change, the geologic structure and history of coastal regions, sediment supply and transport, sea-level rise, and how extreme storm events affect rates and impacts of coastal change.

Devastation of the coastal city of Banda Aceh, Indonesia, after the 2004 Indian Ocean tsunami.
Date Published: April 13, 2016

We study the distribution and hazard potential of coastal and submarine events such as earthquakes and submarine landslides and associated tsunami potential, hurricane induced coastal inundation, extreme storms, sea-level rise and oil and gas spills. We also model development to help evaluate and forecast coastal hazard probability and occurrence.

Methane hydrate
Date Published: April 13, 2016

Our scientists conduct research studies focused on geologic mapping, sampling and understanding of mineral and energy resources and studies of the geologic setting and processes to inform renewable energy development offshore.

crustose coralline algae
Date Published: April 13, 2016

We bring together multidisciplinary expertise focused on developing tools and models to improve understanding of how healthy ecosystems function as well as how they respond to environmental changes and human impacts including ecosystem restoration. Research studies address coral reef, coastal wetland, benthic habitat and groundwater resources.

Satellite image of Hurricane Sandy
Date Published: April 12, 2016

USGS scientists at the Wetland and Aquatic Research Center and other offices received funding for studies related to habitat change, storm surge and ecological modeling, migratory bird impacts, and other topics of interest. The Hurricane Sandy Spatial Data Mapping Application showcases the data and analytical products resulting from these studies.

Mount Rainier seen from Puyallup, Washington
Date Published: March 17, 2016

The Volcano Hazards Program develops long-range volcano hazards assessments. These includes a summary of the specific hazards, their impact areas, and a map showing ground-hazard zones. The assessments are also critical for planning long-term land-use and effective emergency-response measures, especially when a volcano begins to show signs of unrest.

HayWired Scenario ShakeMap
Date Published: March 15, 2016

The HayWired project is an earthquake scenario currently underway to model and study impacts on the San Francisco Bay area from a Mw 7.05 earthquake on the Hayward fault.

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iCoast allows citizen scientists to identify changes to the coast by comparing aerial photographs taken before and after storms.
December 8, 2017

iCoast

Help scientists at the U.S. Geological Survey annotate aerial photographs with keyword tags to identify changes to the coast after extreme storms.

Screen Magnetic Disturbance Summary
October 15, 2017

Magnetic Disturbance Events

View reports on magnetic disturbance events.

Hurricane Joaquin seen from space
September 20, 2017

Hurricane Jose 2017 Event Support Map

Track hurricane data and USGS resources.

screenshot of event support tool hurricane Maria
September 18, 2017

Hurricane Maria 2017 Event Support Map

Track hurricane data and USGS resources.

Coastal Change Hazards Portal Interactive Mapper screen grab
August 24, 2017

Coastal Change Hazards Portal

Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Each data item represents an individual research product, with some items grouped together as aggregates to show the breadth of the topic and make it easy to explore.

Hurricane Sandy Data Viewer - Olga
February 23, 2017

Data Viewer—Post-Hurricane Sandy Lidar Elevations and Features

This viewer provides visualization for and accessibility to USGS lidar data obtained following Hurricane Sandy (October 2012). Access and download data and publications that include the source lidar data and the coastal dune and shoreline data needed to examine coastal change and erosion hazards.

USGS science for a changing world logo
April 27, 2016

Download Real-Time Data

Download real-time and definitive data and indices from USGS geomagnetic observatories.

Screenshot of Real-Time Geomagnetism Plots
April 27, 2016

Real-Time Display of Geomagnetism Plots

Real-time HEZF data from USGS geomagnetic observatories with satellite data used to fill gaps.

Screenshot of  Real-Time Dst Display website
April 27, 2016

Real-Time Disturbance Storm Time (Dst) Display

Real-time Dst data from USGS observatories as well as other world partners.

Fish on seafloor, Offshore Northern California
April 18, 2016

Coastal and Marine Geology Video and Photography Portal

This portal contains U.S. Geological Survey (USGS) video and photography of the seafloor off of coastal California and Massachusetts, and aerial imagery of the coastline along segments of the Gulf of Mexico and mid-Atlantic coasts. These data were collected as part of several USGS Coastal and Marine Geology Program Seafloor Mapping projects and Hurricane and Extreme Storm research.

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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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Image of Michael Casso giving a lab tour to the Woods Hole Children's School of Science
2017 (approx.)
Michael Casso, Woods Hole Coastal and Marine Science Center physical scientist, seeks volunteers from Children’s School of Science students to have their breath measured for carbon dioxide and methane, greenhouse gases USGS scientists measure in the oceans
Video camera atop a hotel in Madeira Beach, Florida.
2017 (approx.)
Video camera atop a hotel in Madeira Beach, Florida.
2017 (approx.)
Seismometers record vibrations from a wide assortment of ground motion events. Each event type has a distinctive ground-motion signal with unique frequency and amplitude—its own seismic signature. Seismologists are trained to identify the source of seismic events seen on a webicorder based on its ‘seismic signature’. Although most ground vibrations have a frequency too low for human hearing, we...
Lake Powell
2017 (approx.)
The USGS Utah Water Science Center and the Woods Hole Coastal and Marine Science Center conducted a collaborative geophysical research effort within Lake Powell, UT-AZ to map the bathymetry of the lake and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers.
Image of USGS scientist, Neil Ganju, at the Woods Hole Science Stroll outreach event
2017 (approx.)
Woods Hole Coastal and Marine Science Center Oceanographer, Neil Ganju, sharing science at the 2017 Woods Hole Science Stroll outreach event
Three panels. Left: overhead view of ocean and breakers. Middle and right: Seafloor maps: dark blue deep, light blue shallow.
2017 (approx.)
Estimated and measured ocean depths (bathymetry) from Madeira Beach, Florida. Each panel shows same geographic area. m = meters. Left: Snapshot transformed from original oblique camera view to overhead “map” view. Middle: Bathymetry estimated by applying cBathy algorithm to July 2017 video imagery. Right: Bathymetry measured with sonar in February 2017. Despite being based on data collected 5...
2017 (approx.)
In March 2008, a new volcanic vent opened within Halema‘uma‘u, a crater at the summit of Kīlauea Volcano in Hawaiʻi Volcanoes National Park on the Island of Hawaiʻi. This new vent is one of two ongoing eruptions on the volcano. The other is on Kīlauea’s East Rift Zone, where vents have been erupting nearly nonstop since 1983. The duration of these simultaneous summit and rift zone eruptions on...
Gerry Hatcher and Shawn Harrison work on their video-camera station atop a hotel in Santa Cruz, California.
2017 (approx.)
Gerry Hatcher (left) and Shawn Harrison work on their video-camera station atop a hotel in Santa Cruz, California.
quadcopter (drone) and camera ready for launch
2017 (approx.)
The 3DR Solo with GoPro Hero4 camera and gimbal. Coming to a survey area near you soon. Photo credit: Shawn Harrison , USGS. This photo was taken during USGS unmanned aerial systems (drone) pilot training. Two training sessions were held - one in February-March 2017 in Santa Cruz, California and the second in April 2017 in Gainesville, Florida. This photo originally was published in a Soundwaves...
December 15, 2017
The Thomas fire has burned more than 230,000 acres and continues to blaze across souther California. These images show some of the burn scar left behind. At the USGS EROS Center, we study land change, operate the Landsat satellites, and maintain the longest, continuously acquired collection of images of the Earth's land surface. USGS EROS Center ( https://eros.usgs.gov/ )
image of the SeaBOSS and USGS personnel on the fantail of the R/V Connecticut on Long Island Sound
2017 (approx.)
Image of the SeaBOSS and USGS personnel on the fantail of the R/V Connecticut in Long Island Sound
USGS personnel adjusting SeaBOSS equipment
2017 (approx.)
USGS personnel adjust equipment on the SeaBOSS on the fantail of the R/V Connecticut on Long Island Sound
Filter Total Items: 263
Alongshore-varying forecasts of barrier island response to sea-level rise
December 12, 2017

A new article combines geomorphological and pre- and post-Hurricane Sandy observations from coastal New Jersey with a morphodynamic model to forecast the response of barrier islands to various rates of sea-level rise and explores the impact of human alterations on forecasted behavior.

Long Island Sound Survey team
December 12, 2017

Geological Sampling (videos, photos and sediment samples) in Long Island Sound on the newly stretched R/V Connecticut with scientist from USGS, UConn and Univ of New Haven

Lake Powell
December 12, 2017

Develop a new bathymetry map of Lake Powell, UT-AZ, and characterize shallow sediment deposition near the mouths of the San Juan and Colorado Rivers. Bathymetric data, acoustic backscatter imagery, and limited CHIRP sub-bottom data were collected by the USGS Utah Water Science Center (UTWSC) and Woods Hole Coastal and Marine Science Center (WHCMSC) within Lake Powell, October - November, 2017.

Montage shows a selection of the exhibit subjects that were shown at the mini Open House.
December 9, 2017

From 11 a.m. to 4 p.m. on Saturday, December 9, USGS scientists treated visitors to displays about their research at the Pacific Coastal and Marine Science Center in Santa Cruz, California.

Photograph of a flooded road in Olympic National Park, Washington, showing a person walking in the shallow water.
December 8, 2017

A team of federal scientists addressed comments from researchers who disagree with their conclusions that river channel evolution is driven primarily by physical factors rather than an overabundance of elk after wolf eradication.

Map showing the M4.1 earthquake epicenter near Dover, DE
November 30, 2017

The USGS has up-to-date details on the November 30, 2017 event.

Image: 2014 Landslide in Washington State
November 30, 2017

"Gravity Never Sleeps":  The USGS collaborates with community partners for a series of briefings on Capitol Hill to discuss national landslide hazards.  

Image: Coral reefs, Kwajalein Atoll, Republic of the Marshall Islands
November 29, 2017

At the request of the U.S. Department of Defense (DoD) Strategic Environmental Research and Development Program (SERDP), USGS geologist Curt Storlazzi chaired a session at a conference on issues affecting DoD installations.

Map of Alaska’s north coast showing color-coded rates of shoreline erosion, Inset: Polar bear on Barter Island.
November 28, 2017

The USGS updated its shoreline-change rates for Alaska’s north coast between the U.S.-Canadian Border and Icy Cape as part of the National Assessment of Coastal Change Hazards.

Image shows a cave diver in a flooded cave
November 28, 2017

In the underground rivers and flooded caves of Mexico’s Yucatan Peninsula, where Mayan lore described a fantastical underworld, scientists have found a cryptic world in its own right.

CT scans and photographs of coral collected from reef near polluted groundwater seeps. One set shows more erosion than the other
November 27, 2017

Coral reefs already stressed by ocean acidification are particularly vulnerable to polluted groundwater, according to a recent study by USGS geologist Nancy Prouty and colleagues.