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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.

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Filter Total Items: 289
Date published: November 15, 2018
Status: Active

San Francisco Bay Area - East Bay (BALT1) Site near Castro Valley, CA

Recent Conditions

The instruments were installed in the spring of 2009 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

Contacts: Brian Collins
Date published: November 8, 2018
Status: Active

Environmental Geochemistry- Coastal Aquifers, Wetlands, and Tidal Exchange

The interface between groundwater and the coastal or intertidal landscape determines the location and migration path of fresh and saline wetlands. These ecosystems interact with the coastal ocean in many ways, much of which is driven by tidal exchange and groundwater discharge, both common coastal processes that deliver water, nutrients, and other materials to nearshore ecosystems, including...

Date published: November 8, 2018
Status: Active

Environmental Geochemistry- Wetland Resilience

Tidal wetlands are key ecosystems because they are unique ecological systems that provide essential habitat for fish, shellfish, birds and other fauna and flora, many of which have great economic importance.  At the same time, tidal wetlands provide critical services to society by serving as a physical barrier between our cities, roads and homes and the rising sea. If healthy and properly...

Date published: November 8, 2018
Status: Active

Environmental Geochemistry- Managed Wetlands

The challenge of wetland persistence is complicated by widespread management and alteration of wetland hydrology, and built infrastructure within migration corridors. Human development and utilization of coastal landscapes in the U.S. during the past several centuries has resulted in loss of approximately half of tidal wetland area, largely due to 1) restriction of tidal flows, through...

Date published: November 8, 2018
Status: Active

Environmental Geochemistry

Coastal Environmental Geochemistry research at the Woods Hole Coastal and Marine Science Center spans multiple ecosystems and topics, including coastal wetlands, aquifers, and estuaries, with the goal of providing data and guidance to federal, state, local, and private land owners and managers on these vital ecosystems.

 

Date published: October 30, 2018
Status: Active

California Seafloor Mapping Program data collection

Here we describe the data collection methods and techniques of the California Seaflor Mapping Program: mapping, video and photography ground-truthing, and seismic profiling data collection.

Date published: October 30, 2018
Status: Active

California Seafloor Mapping Program map-set production

USGS and the California Ocean Protection Council (COPC) are supporting development of peer-reviewed map sets for California’s mainland State Waters.

Date published: October 27, 2018
Status: Active

Global Geoengineering Research: Methods of study

Field methods of study in global geoengineering research

Contacts: Robert Kayen
Date published: October 27, 2018
Status: Active

Global Geoengineering Research: Modeling

Prediction of the severity of ground failure in Quaternary deposits is a critical component of hazard studies. Model development in our project is focused on design and application of methods for quantitative assessment of ground deformation potential.

Contacts: Robert Kayen
Date published: October 27, 2018
Status: Active

Global Geoengineering Research

Ground Deformation and Failure

The Coastal and Marine Geology geotechnical group investigates the causes of ground deformation and ground failure as a result of earthquakes, storms, and wave action. The coastal urban regions of the Pacific margin of the United States are growing rapidly, putting increasing demands on coastal infrastructure and lifelines, such as...

Contacts: Robert Kayen
Date published: October 16, 2018
Status: Active

Submarine Groundwater Discharge

Submarine groundwater discharge (SGD) is an ubiquitous coastal process that is driven by a composite of climatologic, hydrogeologic, and oceanographic processes. For example, terrestrial hydraulic gradients that reflect both short and long term climatic conditions almost always transport both surface and ground water toward the coast. In coastal waters, physical oceanographic processes such as...

Date published: October 15, 2018
Status: Active

U.S. Geological Survey Gas Hydrates Project

The USGS Gas Hydrates Project focuses on the study of natural gas hydrates in deepwater marine systems and permafrost areas. The primary goals are:

  • Evaluate methane hydrates as a potential energy source
  • Investigate the interaction between methane hydrate destabilization and climate change at short and long time scales, particularly in the Arctic
  • Study the spatial
  • ...
Filter Total Items: 143
Date published: September 26, 2018

Coastal Landscape Response to Sea-Level Rise Assessment for the Northeastern United States

Sea-level rise (SLR) impacts on the coastal landscape are presented here as: 1) level of landscape submergence (adjusted land elevation with respect to projected mean high water levels); and 2) coastal response type characterized as either static (for example, inundation) or dynamic (for example, landform or landscape change). Results are produced at a spatial scale of 30 meters.

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 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: 4,632
Year Published: 2018

Erratum to The 2013–2016 induced earthquakes in Harper and Sumner Counties, southern Kansas

The authors identified two sets of minor errors in the paper by Rubinstein et al. (2018), which are corrected here.

Rubinstein, Justin L.; Ellsworth, William L.; Dougherty, Sara L.

Year Published: 2018

Interseismic ground deformation and fault slip rates in the greater San Francisco Bay Area from two decades of space geodetic data

The detailed spatial variations of strain accumulation and creep on major faults in the northern San Francisco Bay Area (North Bay), which are important for seismic potential and evaluation of natural hazards, remain poorly understood. Here we combine interferometric synthetic aperture radar data from the ERS‐1/2 and Envisat satellites between...

Wu, Songbo; Nadeau, Robert; Ding, Xiaoling; Xu, Wenbin; Wu, Songbo; Materna, Kathryn; Nadeau, Robert; Floyd, Michael; Funning, Gareth J.; Chaussard, Estelle; Johnson, Christopher W.; Murray, Jessica R.; Ding, Xiaoling; Burgmann, Roland
Xu, W., S. Wu, K. Materna, R. Nadeau, M. Floyd, G. Funning, E. Chaussard, C. Johnson, J. R. Murray, X. Ding, and R. Bürgmann (2018), Interseismic ground deformation and fault slip rates in the greater San Francisco Bay Area from two decades of space geodetic data, J. Geophys. Res.

Year Published: 2018

Improving earthquake rupture forecasts using California as a guide

This article discusses ways in which earthquake rupture forecast models might be improved. Because changes are most easily described in the context of specific models, the third Uniform California Earthquake Rupture Forecast (UCERF3) and its presumed successor, UCERF4, is used as a basis for discussion. Virtually all of the issues and possible...

Field, Edward H.
Field, E. H. (2018). Improving Earthquake Rupture Forecasts Using California as a Guide, Seismological Research Letters, https://doi.org/10.1785/0220180151.

Year Published: 2018

VS30 at three strong-motion recording stations in Napa and Solano Counties, California—Lovall Valley Road, Broadway Street and Sereno Drive in Vallejo, and Vallejo Fire Station—Calculations determined from S-wave refraction tomography and multichannel analysis of surface waves (Rayleigh and Love)

The August 24, 2014, moment magnitude (Mw) 6.0 South Napa earthquake caused an estimated $400 million in structural damage to the City of Napa, California. In 2015, we acquired high-resolution P- and S-wave seismic data near three strong-motion recording stations in Napa and Solano Counties where high peak ground accelerations (PGAs) were recorded...

Chan, Joanne H.; Catchings, Rufus D.; Goldman, Mark R.; Criley, Coyn J.
Chan, J.H., Catchings, R.D., Goldman, M.R., and Criley, C.J., 2018, VS30 at three strong-motion recording stations in Napa and Solano Counties, California—Lovall Valley Road, Broadway Street and Sereno Drive in Vallejo, and Vallejo Fire Station—Calculations determined from S-wave refraction tomography and multichannel analysis of surface waves (Rayleigh and Love): U.S. Geological Survey Open-File Report 2018–1162, 62 p., https://doi.org/10.3133/ofr20181162.

Year Published: 2018

VS30 at three strong-motion recording stations in Napa and Napa County, California—Main Street in downtown Napa, Napa fire station number 3, and Kreuzer Lane—Calculations determined from s-wave refraction tomography and multichannel analysis of surface waves (Rayleigh and Love)

The August 24, 2014, moment magnitude (Mw) 6.0 South Napa earthquake caused an estimated $400 million in structural damage to the City of Napa, California. In 2015, we acquired high-resolution P- and S-wave seismic data near three strong-motion recording stations in Napa County where high peak ground accelerations (PGAs) were recorded during the...

Chan, Joanne H.; Catchings, Rufus D.; Goldman, Mark R.; Criley, Coyn J.
Chan, J.H., Catchings, R.D., Goldman, M.R., and Criley, C.J., 2018, VS30 at three strong-motion recording stations in Napa and Napa County, California—Main Street in downtown Napa, Napa fire station number 3, and Kreuzer Lane—Calculations determined from s-wave refraction tomography and multichannel analysis of surface waves (Rayleigh and Love): U.S. Geological Survey Open-File Report 2018–1161, 47 p., https://doi.org/10.3133/ofr20181161.

Year Published: 2018

Revised technical implementation plan for the ShakeAlert system—An earthquake early warning system for the West Coast of the United States

The U.S. Geological Survey (USGS), along with partner organizations, has developed an earthquake early warning (EEW) system called ShakeAlert for the highest risk areas of the United States: namely, California, Oregon, and Washington. The purpose of the system is to reduce the impact of earthquakes and save lives and property by providing alerts...

Given, Douglas D.; Allen, Richard M.; Baltay, Annemarie S.; Bodin, Paul; Cochran, Elizabeth S.; Creager, Kenneth; de Groot, Robert M.; Gee, Lind S.; Hauksson, Egill; Heaton, Thomas H.; Hellweg, Margaret; Murray, Jessica R.; Thomas, Valerie I.; Toomey, Douglas; Yelin, Thomas S.
Given, D.D., Allen, R.M., Baltay, A.S., Bodin, P., Cochran, E.S., Creager, K., de Groot, R.M., Gee, L.S., Hauksson, E., Heaton, T.H., Hellweg, M., Murray, J.R., Thomas, V.I., Toomey, D., and Yelin, T.S., 2018, Revised technical implementation plan for the ShakeAlert system—An earthquake early warning system for the West Coast of the United States: U.S. Geological Survey Open-File Report 2018–1155, 42 p., https://doi.org/10.3133/ofr20181155. [Supersedes USGS Open-File Report 2014–1097.]

Year Published: 2018

Observations of rotational motions from local earthquakes using two temporary portable sensors in Waynoka, Oklahoma

Characterizing rotational motions from earthquakes at local distances has the potential to improve earthquake engineering and seismic gradiometry by better characterizing the complete seismic wavefield. Applied Technology Associates (ATA) has developed a proto‐seismic magnetohydrodynamic (SMHD) three‐component rotational rate sensor. We deploy two...

Ringler, Adam T.; Anthony, Robert E.; Holland, A.A.; Wilson, David C.; Lin, C.-J.

Year Published: 2018

Wetland stratigraphic evidence for variable megathrust earthquake rupture modes at the Cascadia subduction zone

Although widespread agreement that the Cascadia subduction zone produces great earthquakes of magnitude 8 to 9 was reached decades ago, debate continues about the rupture lengths, magnitudes, and frequency of megathrust earthquakes recorded by wetland stratigraphy fringing Cascadia’s estuaries. Correlation of such coastal earthquake evidence along...

Nelson, Alan R.; Witter, Robert C.; Englehart, Simon; Hawkers, Andrea; Horton, Benjamin P.
Wetland stratigraphic evidence for variable megathrust earthquake rupture modes at the Cascadia subduction zone, in Piscitelli, A., Milella, M., and Mastronuzzi, G., eds, Abstract volume for IGCP Project 639 - Sea-level change from minutes to millenia, Crossing southern Italy, a traveling meeting from Taranto to Siracusa, Italy 17-21 Sept 2018, p. 85-87.

Year Published: 2018

Development of a domestic earthquake alert protocol combining the USGS pager and FEMA Hazus systems

The U.S. Geological Survey’s PAGER automated alert system provides rapid (10-20 min) loss estimates in terms of ranges of fatalities and economic impact for all significant earthquakes around the globe. In contrast, FEMA’s Hazus software, which is currently operated manually by FEMA personnel internally within several hours of any large domestic...

Wald, David J.; Seligson, H.A.; Rozelle, Jesse; Burns, J.; Marano, Kristin; Jaiswal, Kishor; Hearne, Mike; Bausch, D

Year Published: 2018

Increasing earthquake insurance coverage in California via parametric hedges

California has the highest earthquake risk of any state in the United States. The Federal Emergency Management Agency (FEMA) reported in 2017 that 73% of the nation’s annual losses to earthquakes were expected to be concentrated in California and the Pacific Northwest. California alone constitutes 61% ($3.7 billion out of an estimated $6.1 billion...

Franco, Guillermo; Tirabassi, G; Lopeman, M; Wald, David J.; Siembieda, W.J.

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.

Filter Total Items: 2,698
Meagan Gonneea checks on instruments at a tidal creek in Great Pond, Falmouth, MA
November 8, 2018

Instrument check at a tidal creek, Falmouth, MA

Meagan Gonneea checks on instruments at a tidal creek in Great Pond, Falmouth, MA. Daily tides drive exchange between coastal wetlands and adjacent estuaries. Here we have instrumented a tidal channel to measure those fluxes over a tidal cycle. When the marsh floods, material is imported from the estuary. Biogeochemical cycles within the wetland, driven by plants and

...
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 (“

...
Filter Total Items: 407
Date published: September 11, 2018

USGS: Florence Likely to Cause Short- and Long-Term Beach Erosion

Initial effect will probably be erosion on 75 percent of North Carolina beaches, experts say.

 

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Florence, visit the USGS Hurricane Florence page at https://www.usgs.gov/florence.

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.

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