Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

Mission Areas

Natural Hazards

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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: 282
Date published: October 8, 2018
Status: Completed

Tsunami Generation from the 2004 M=9.1 Sumatra-Andaman Earthquake

The December 26, 2004 magnitude (M) 9.1 Sumatra-Andaman earthquake occurred along a tectonic subduction zone in which the India Plate, an oceanic plate, is being subducted beneath the Burma micro-plate, part of the larger Sunda plate. The boundary between the downgoing and overriding plates of the subduction zone is marked by the Sunda Trench above.

This page provides a brief overview...

Contacts: Eric Geist
Date published: October 4, 2018
Status: Active

Tsunami Hazards, Modeling, and the Sedimentary Record

Basic research to develop the geologic record of paleotsunamis and improve the ability to interpret that record is needed to mitigate tsunami risk in the U.S.

Date published: October 4, 2018
Status: Active

DIGITAL SHORELINE ANALYSIS SYSTEM (DSAS)

Computer Software for Calculating Shoreline Change (or positional change of a boundary over time)

The Digital Shoreline Analysis System (DSAS) is an add-in to Esri ArcGIS desktop v.10.4 or 10.5 that enables a user to calculate shoreline rate-of-change statistics from multiple historical shoreline positions. It provides an automated method for establishing measurement...

Date published: October 2, 2018
Status: Active

Samples Repository Collections Inventory

The collections inventory database for the U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center (WHCMSC) Samples Repository is published as a USGS data release (Buczkowski and others, 2018), and is available to search online through the Samples Repository’s inventory search interface.  Sample collections in the Repository can be searched and selected through a map...

Date published: October 1, 2018
Status: Active

Estuarine Processes, Hazards, and Ecosystems

Estuarine processes, hazards, and ecosystems describes several interdisciplinary projects that aim to quantify and understand estuarine processes through observations and numerical modeling. Both the spatial and temporal scales of these mechanisms are important, and therefore require modern instrumentation and state-of-the-art hydrodynamic models. These projects are led from the U.S....

Date published: September 26, 2018
Status: Completed

Sea-Level Rise Hazards and Decision Support

This project brings together scientists from the disciplines of geology, hydrology, geography, biology, and ecology to address the effects of Sea-Level Rise (SLR) on the Nation’s coasts. The project synthesizes information on coastal environments and uncertainties in knowledge of coastal processes into a Bayesian statistical analysis framework. The Bayesian approach allows researchers to...

Date published: September 25, 2018
Status: Active

Sea Floor Mapping Group

The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing,...

Date published: September 25, 2018
Status: Active

Geologic and Biologic Studies of Georges Bank and the New England Shelf

Large areas of Georges Bank (which lies in both the US and Canada) and the New England Shelf have been closed to fishing for 25 years in order to conserve and rebuild fishery stocks. These closures, along with an increased need to improve characterization of the seabed, have provided the opportunity to map the extent of gravel substrates that dominant parts of the region, study the effects of...

Date published: September 24, 2018
Status: Active

Substrate Mapping and Process Studies of New England Seabeds

In response to the growing need for Coastal and Marine Spatial Planning as a means to better manage seabed environments, it is necessary to compile high-resolution (1:25,000) interpretive maps and to formulate a geology-based seabed classification system that will allow users to recognize and correctly interpret seabed substrate types.

Seabed imagery from multibeam mapping surveys has...

Date published: September 24, 2018
Status: Active

Aerial Imaging and Mapping

The Aerial Imaging and Mapping group (AIM), at the U.S. Geological Survey Woods (USGS) Hole Coastal and Marine Science Center provides UAS services to scientists to advance the science mission of the Coastal and Marine Geology Program. Scientists at the Woods Hole Coastal and Marine Science Center have been using UASs to acquire imagery of coastal and wetland environments, which is then used...

Date published: September 24, 2018
Status: Active

National Seafloor Mapping and Benthic Habitat Studies

The Stellwagen Bank region, located off Boston, Massachusetts, just east of Massachusetts Bay between Cape Cod and Cape Ann, is a glaciated terrain of shallow banks and deep basins with water depths ranging from 20 to 200 meters. The region is heavily utilized by humans and marine species. It serves as a National Marine Sanctuary; a rich commercial and recreational fishing ground; a disposal...

Date published: September 19, 2018
Status: Active

USGS science supporting the Elwha River Restoration Project

The Elwha River Restoration Project...

... has reconnected the water, salmon, and sediment of a pristine river and coast of the Olympic Peninsula of Washington. Coordinated by the National Park Service, restoration of the Elwha River included the removal of two large dams that had blocked salmon and sediment passage for almost 100 years. The largest dam removal in U.S. history began in...

Filter Total Items: 143
Date published: September 17, 2018

Near-bottom Temperature, Conductivity, and Light Transmission Observations in the Western Gulf of Maine, 2013-2017

The primary objective of the near-bottom observations was to document the frequency of fine-grained sediment resuspension. Hourly averages of some of the data were telemetered and released in real time on the UMOOS and NERACOOS web sites. The data...

Date published: August 14, 2018

Sidescan sonar, single beam bathymetry, and navigation collected offshore of Sandwich Beach in 2016, U.S. Geological Field Activity 2016-030-FA

The objectives of the survey were to provide bathymetric and sidescan sonar data for sediment transport studies and coastal change model development for ongoing studies of nearshore coastal dynamics along Sandwich Town Neck Beach, MA. Data collection equipment used for this investigation are mounted on an unmanned surface vehicle (USV) uniquely adapted from a commercially sold gas-powered...

Date published: August 3, 2018

Table and accompanying photographs for biogeomorphic classification of shorebird nesting sites on the U.S. Atlantic coast from March to September, 2016

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 piping plover habitat distribution and...

Date published: August 2, 2018

Discharge measurements made in Bayou Heron and Bayou Middle, Grand Bay, Mississippi in January 2017

Grand Bay, a 30-square-kilometer embayment of the Gulf of Mexico bordered by 20 square kilometers of salt marsh, is experiencing rapid lateral shoreline erosion at up to 5 meters per year. Determining whether the eroded sediment is exported to the deep ocean or imported via tidal channels and deposited on the marsh platform is critical to understanding the long-term response of the marsh to...

Date published: July 27, 2018

Geomagnetism Plots

Real-time display of USGS geomagnetic observatory data feeds and derived products.

Date published: July 25, 2018

COAWST: A Coupled-Ocean-Atmosphere-Wave- Sediment Transport Modeling System

To better identify the significant processes affecting our coastlines and how those processes create coastal change we have developed a Coupled Ocean – Atmosphere – Wave – Sediment Transport (COAWST) Modeling System, which is integrated by the Model Coupling Toolkit to exchange data fields between the ocean model ROMS, the atmosphere model WRF, the wave model SWAN, and the sediment...

Date published: July 25, 2018

Download Real-Time Data

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

Date published: July 24, 2018

Effect of pore fluid chemistry on the sedimentation and compression behavior of pure, endmember fines

The data in this release support the correlation effort by providing: 1) sedimentation results that provide insight into micro-scale sediment fabric and void ratio dependence on sediment/fluid interactions, and 2) consolidation results that quantify the macro-scale compressibility and recompressibility parameters for a suite of fine-grained sediments and differing pore fluids. 

Date published: July 23, 2018

Magnetic Disturbance Events

View reports on magnetic disturbance events.

Date published: July 21, 2018

Models

View and download model results from magnetic studies.

Date published: July 19, 2018

Real-Time Disturbance Storm Time (Dst) Display

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

Date published: July 18, 2018

Magnetic Disturbance Movies

Movie-maps of low-latitude horizontal-intensity magnetic disturbance are derived from magnetic vector time series data collected at multiple ground-based observatories. Using a technique similar to that used in the calculation of Dst, a quiet time baseline is subtracted from the time series from each observatory. The remaining disturbance time series are shown in a polar coordinate system that...

Filter Total Items: 4,552
Year Published: 2018

State transportation agencies partner to deploy and enhance ShakeCast

The California Department of Transportation (Caltrans) is organizing and leading a three-year Transportation Pooled Fund (TPF) project, Connecting the Dots: Implementing ShakeCast Across Multiple State Departments of Transportation for Rapid Post-Earthquake Response. Ten state Departments of Transportation (DOT)—CA, ID, MO, MS, OK, OR, SC, TX, UT...

Turner, L.; Wald, David J.; Lin, Kuo-wan; Chiou, Brian; Slosky, Daniel

Year Published: 2018

Tidal response of groundwater in a leaky aquifer—Application to Oklahoma

Quantitative interpretation of the tidal response of water levels measured in wells has long been made either with a model for perfectly confined aquifers or with a model for purely unconfined aquifers. However, many aquifers may be neither totally confined nor purely unconfined at the frequencies of tidal loading but behave somewhere between the...

Wang, Chi-Yuen; Doan, Mai-Linh; Xue, Lian; Barbour, Andrew J.

Year Published: 2018

Induced earthquake and liquefaction hazards in Oklahoma, USA: Constraints from InSAR

Oklahoma experienced three earthquakes of Mw5.0 or greater in 2016: the 13-Feb. Fairview earthquake (Mw5.1), the 03-Sep. Pawnee earthquake (Mw5.8), and the 07-Nov. Cushing earthquake (Mw5.0). These events are the first earthquakes in the state exceeding Mw5.0 since the 2011 Mw5.7 Prague earthquake and likely result from wide-scale deep...

Barnhart, William D.; Yeck, William L.; McNamara, Daniel E.
Barnhart, W. D., Yeck, W. L., & McNamara, D. E. (2018). Induced earthquake and liquefaction hazards in Oklahoma, USA: Constraints from InSAR. Remote Sensing of Environment, 218, 1-12.

Year Published: 2018

Sensor suite: The Albuquerque Seismological Laboratory Instrumentation Testing Suite

To standardize parameters used in seismometer testing and calibration and to make these algorithms accessible to the seismological community, we have developed a new seismometer testing software package called Albuquerque Seismological Laboratory (ASL) Sensor Test Suite. This software is written in Java and makes use of Seismological Exchange for...

Kearns, A.; Ringler, Adam T.; Holland, James; Storm, Tyler; Wilson, David C.; Anthony, Robert E.
Kearns, A., A. T. Ringler, J. Holland, T. Storm, D. C. Wilson, and R. E. Anthony (2018). Sensor Suite: The Albuquerque Seismological Laboratory instrumentation testing suite, Seismological Research Letters, doi:10.1785/0220180174.

Year Published: 2018

2018 report on incorporating sedimentary basin response into the design of tall buildings in Seattle, Washington

On March 22, 2018, the Seattle Department of Construction and Inspections (SDCI) and the U.S. Geological Survey (USGS) convened a workshop of engineers and seismologists to provide guidance on incorporating sedimentary basin response into the design of tall buildings in Seattle. This workshop provided recommendations that build on those from a...

Wirth, Erin A.; Chang, Susan W.; Frankel, Arthur
Wirth, E.A., Chang, S.W., and Frankel, A.D., 2018, 2018 report on incorporating sedimentary basin response into the design of tall buildings in Seattle, Washington: U.S. Geological Survey Open-File Report 2018–1149, 19 p., https://doi.org/10.3133/ofr20181149.

Year Published: 2018

Using tectonic tremor to constrain seismic‐wave attenuation in Cascadia

Tectonic tremor can be used to constrain seismic‐wave attenuation for use in ground‐motion prediction equations (GMPEs) in regions where moderately sized earthquakes occur infrequently. Here we quantify seismic‐wave attenuation by inverting tremor ground motion amplitudes in different frequency bands of interest, to determine frequency dependence...

Littel, Geena F.; Thomas, Amanda M.; Baltay, Annemarie S.
Little, G., A. M. Thomas and A. S. Baltay, Using tectonic tremor to constrain seismic-wave attenuation in Cascadia, Geophys. Res. Lett., 10.1029/2018GL079344.

Year Published: 2018

Developing hydro-meteorological thresholds for shallow landslide initiation and early warning

Consistent relations between shallow landslide initiation and associated rainfall characteristics remain difficult to identify, due largely to the complex hydrological and geological processes causing slopes to be predisposed to failure and those processes that subsequently trigger failures. Considering the importance of hillslope hydrology for...

Mirus, Benjamin B.; Morphew, Michael D.; Smith, Joel B.
Mirus, B.B., Morphew, M.D., and Smith, J.B., 2018, Developing Hydro-Meteorological Thresholds for Shallow Landslide Initiation and Early Warning. Water, 10(9), 1274, doi:10.3390/w10091274.

Year Published: 2018

Holocene fault reactivation in the eastern Cascades, Washington

Significant uncertainty remains concerning how and where crustal shortening occurs throughout the eastern Cascade Range in Washington State. Using light detection and ranging (lidar) imagery, we identified an ∼5‐km‐long">∼5‐km‐long lineament in Swakane canyon near Wenatchee, roughly coincident with a...

Carlson, Benjamin L.; Schermer, Elizabeth R.; Amos, Colin B.; Stephenson, William J.; Sherrod, Brian; Mahan, Shannon A.
Carlson, B.M., Schermer, E.R., Amos, C.B., Stephenson, W.J., Sherrod, B.L., and Mahan, S.A., 2018 Holocene fault reactivation in the eastern Cascades, Washington, Bulletin Seismological Society of America, https://doi.org/10.1785/0120170228

Year Published: 2018

Lessons from Mexico’s earthquake early warning system

The devastating 2017 Puebla quake provides an opportunity to assess how citizens perceive and use the Mexico City earthquake early warning system.

Allen, Richard M.; Cochran, Elizabeth S.; Huggins, Thomas J.; Miles, Scott; Otegui, Diego
Allen, R. M., E. S. Cochran, T. J. Huggins, S. Miles, and D. Otegui (2018), Lessons from Mexico’s earthquake early warning system, Eos, 99, https://doi.org/10.1029/2018EO105095.

Year Published: 2018

Identifying physics‐based thresholds for rainfall‐induced landsliding

Most regional landslide warning systems utilize empirically derived rainfall thresholds that are difficult to improve without recalibration to additional landslide events. To address this limitation, we explored the use of synthetic rainfall to generate thousands of possible storm patterns and coupled them with a physics‐based hydrology and slope...

Thomas, Matthew A.; Mirus, Benjamin B.; Collins, Brian D.
Thomas, M. A., Mirus, B. B., & Collins, B. D. (2018). Identifying physics‐based thresholds for rainfall‐induced landsliding. Geophysical Research Letters. https://doi.org/10.1029/2018GL079662

Year Published: 2018

Science for a risky world—A U.S. Geological Survey plan for risk research and applications

Executive SummaryNatural hazards—including earthquakes, tsunamis, volcanic eruptions, landslides, hurricanes, droughts, floods, wildfires, geomagnetic storms, and pandemics—can wreak havoc on human communities, the economy, and natural resources for years following an initial event. Hazards can claim lives and cause billions of dollars in damage...

Ludwig, K.A.; Ramsey, David W.; Wood, Nathan J.; Pennaz, A.B.; Godt, Jonathan W.; Plant, Nathaniel G.; Luco, Nicolas; Koenig, Todd A.; Hudnut, Kenneth W.; Davis, Donyelle K.; Bright, Patricia R.
Attribution: Natural Hazards
Ludwig, K.A., Ramsey, D.W., Wood, N.J., Pennaz, A.B., Godt, J.W., Plant, N.G., Luco, N., Koenig, T.A., Hudnut, K.W., Davis, D.K., and Bright, P.R., 2018, Science for a risky world—A U.S. Geological Survey plan for risk research and applications: U.S. Geological Survey Circular 1444, 57 p., https://doi.org/10.3133/cir1444.

Year Published: 2018

Incorporating teleseismic tomography data into models of upper mantle slab geometry

Earthquake-based models of slab geometry are limited by the distribution of earthquakes within a subducting slab, which is often heterogeneous. The fast seismic velocity signature of slabs in tomography studies is independent of the distribution of earthquakes within the slab, providing a critical constraint on slab geometry when earthquakes are...

Portner, Daniel E.; Hayes, Gavin
Daniel Evan Portner, Gavin P Hayes; Incorporating teleseismic tomography data into models of upper mantle slab geometry, Geophysical Journal International, Volume 215, Issue 1, 1 October 2018, Pages 325–332, https://doi.org/10.1093/gji/ggy279

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Dark image of a coastal area shows standard deviation of pixel density for 10 minutes, brighter areas mean more movement.
November 8, 2018

Sunset State Beach variance image

Image from video camera along Sunset State Beach in Watsonville, CA, looking northwest. Every half hour during daylight hours, the camera shoots video for 10 minutes. This variance image shows the standard deviation of pixel intensity throughout the video frames, useful for determining how much variation or movement is occurring at a given location. Brighter tones indicate

...
Gamma well detectors are used to determine the ages of sediments based on activities of natural and anthropogenic radionuclide
November 6, 2018

Gamma well detectors

Gamma well detectors are used to determine the ages of sediments based on activities of natural and anthropogenic radionuclides

Image of a UIC, Inc., Coulmeter
November 6, 2018

Coulmeter

Dissolved inorganic carbon (DIC) in water samples is measured with a UIC, Inc. Coulometer

View from atop a building looks down on a sandy beach with a rainbow, palm tree just below view, and buildings in distance.
November 5, 2018

Isla Verde, San Juan, Puerto Rico

The urban reef at Isla Verde supports various species of protected corals, sea turtles, and crustaceans, as well as many Caribbean fish. It also protects the International Airport and numerous homes and resorts on the coast.

View of a coastline from a camera that changes every half hour, with calm waters and tundra in foreground.
October 26, 2018

Unalakleet video camera snapshot

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. This is a snapshot taken from one of the cameras. The camera system was installed by the USGS in collaboration with Alaska DNR DGGS (Department of Natural Resources, Division of Geological and Geophysical Surveys), the Native Village of

...
October 25, 2018

PubTalk 10/2018 — Post-fire debris flow early warning

Title: Post-Fire Debris-Flow Early Warning: The case for forecast-based warning systems

  • Post-fire debris flows can initiate after only a few minutes of intense rain, and during the first storm following wildfire.
  • Early warning systems must provide sufficient time to make informed decisions and take reasonable preventative action.
  • If you're
...
Landscape photo of mountains in distance with low clouds filling valley in mid-ground and pine tress on slope in foreground
October 10, 2018

Sunrise at Mount St. Helens

The sun rises at Mount St. Helens (pictured in the distance), with low-level clouds covering Coldwater Lake. The view is from the Coldwater Science and Learning Center, the site of the 2018 GeoGirls field camp program.

Eastern FL Panhandle map of predicted beach erosion, overwash, inundation
October 9, 2018

Strong hurricane impacts predicted for many Panhandle beaches

Coastal Change Storm Hazard Team map created Tuesday, 10/89/18 showing current forecasted beach erosion, overwash and inundation effects of Hurricane Michael's predicted landfall in the Florida Panhandle. Forecast will change with subsequent National Hurricane Center forecasts.

 

Image of USGS personnel collecting salt marsh sediment cores
October 3, 2018

Salt Marsh Coring

NAGT summer intern, Kelly Sanks, prepares to collect salt marsh sediment cores with her advisor, Dr. Meagan Gonneea (Cape Cod, MA).

September 27, 2018

PubTalk 9/2018 - Hayward Earthquake

Title: The 150th Anniversary of the Damaging 1868 Hayward Earthquake: Why It Matters and How We Can Prepare for Its Repeat

  • The Hayward Fault in the heart of the Bay Area is one of the most urbanized faults in the US.
  • Studies of the fault reveal that it has produced 12 large earthquakes in the past 2000 years spaced 100-220 years apart.
  • There
...
September 25, 2018

First mission: USGS UAS monitors gas emissions at Mount St. Helens

On September 25, 2018, a team of three scientists based at the USGS–Cascades Volcano Observatory conducted the first-ever USGS-led Unmanned Aircraft Systems (UAS) campaign at Mount St. Helens. The UAS survey was conducted with the permission and coordination of the U.S. Forest Service Mount St. Helens National Volcanic Monument.

The team used a multi-rotor UAS (“

...
September 25, 2018

First mission: USGS UAS monitors gas emissions at Mount St. Helens —AD

On September 25, 2018, a team of three scientists based at the USGS–Cascades Volcano Observatory conducted the first-ever USGS-led Unmanned Aircraft Systems (UAS) campaign at Mount St. Helens. The UAS survey was conducted with the permission and coordination of the U.S. Forest Service Mount St. Helens National Volcanic Monument.

The team used a multi-rotor UAS (“

...
Filter Total Items: 406
Date published: September 7, 2018

Hurricane Maria’s impacts on deep-water coral reefs off Puerto Rico

USGS research geologist Curt Storlazzi was quoted in an August 22 Nature news article about Hurricane Maria’s effects on deep-water coral reefs off Puerto Rico.

Date published: September 7, 2018

USGS-NOAA cruise maps Cascadia subduction zone to assess earthquake hazards

From July 31 to August 23, a joint USGS-NOAA cruise mapped seafloor depths, texture, and gas seeps in the Cascadia subduction zone offshore of Washington, Oregon, and northern California.

Date published: September 7, 2018

USGS and NASA researchers meet to discuss Synthetic Aperture Radar for assessing USGS coastal-flooding projections

USGS and NASA researchers met July 16 at NASA’s Jet Propulsion Laboratory (JPL) to discuss Synthetic Aperture Radar (SAR) imagery of the Southern California coast collected during higher-than-normal tides (“king tides”) in fall 2016.

Date published: September 6, 2018

Magnitude 6.6 Earthquake in Japan

The USGS has up-to-date details on the September 5, 2018 event.

Date published: September 5, 2018

Moving Mountains: Elwha River Still Changing Five Years After World’s Largest Dam-Removal Project: More than 20 million tons of sediment flushed to the sea

Starting in 2011, the National Park Service removed two obsolete dams from the Elwha River in Olympic National Park, Washington. It was the world’s largest dam-removal project. Over the next five years, water carrying newly freed rocks, sand, silt and old tree trunks reshaped more than 13 miles of river and built a larger delta into the Pacific Ocean.

Date published: September 3, 2018

Scientists Discover New Clues to Mount St. Helens Unusual Location

The atypical location of Mount St. Helens may be due to geologic structures that control where deep magmas can rise through the crust, as suggested by new findings published today in Nature Geoscience.

Date published: September 2, 2018

New Methods for Dating and Sequencing Ancient Earthquakes Along the Wasatch Fault Zone

Complex geologic sites, like those between the fault segments along the Wasatch fault zone in Utah, make the dating and ordering past earthquakes a difficult task. Two new methods were used to make this task easier and to get better results.

Date published: September 1, 2018

Collection of 3D Geometries of Global Subduction Zones

A new picture of the geometry of subducting slabs around the world, the locations of the world’s largest earthquakes.

Date published: August 31, 2018

USGS scientists travel to Seven Mile Island in New Jersey to conduct nearshore geophysical survey

USGS SPCMSC personnel Jennifer Miselis (Research Geologist), Julie Bernier (Geologist), Nancy DeWitt (Geologist), Andy Farmer (CNT), Jake Fredericks (Hydrographic Technician), Kyle Kelso (Marine Operations Manager), BJ Reynolds (Engineering Technician), Chelsea Stalk (CNT), and Hunter Wilcox (CNT) will travel to southern New Jersey to conduct a nearshore geophysical survey.

Date published: August 24, 2018

USGS Responds to Hurricane Lane

Editor’s note: This article will be updated online with more information on the USGS response to Hurricane Lane as it becomes available.

Date published: August 21, 2018

Magnitude 7.3 Earthquake in Venezuela

The USGS has up-to-date details on the August 21, 2018 event.

Date published: August 15, 2018

USGS and Army Corps of Engineers conduct simultaneous measurements at Sandy Neck beach, Cape Cod, MA

Woods Hole Coastal and Marine Science Center Aerial Imaging and Mapping (AIM) group conducted drone flights from atop a dune at Sandy Neck (Cape Cod) while the Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) aircraft collected data overhead.

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