Samoa Disaster Highlights Danger of Tsunamis Generated from Outer-Rise...
Unlike typical tsunamigenic earthquakes that occur on the thrust fault that separates tectonic plates in a subduction zone (termed the interplate thrust), outer-rise earthquakes occur within the...
View ArticleEnormous Caribbean Waves Before 1492
Geologists have discovered evidence that unusual seas detached living corals from a Caribbean reef and scattered them far inland, as boulders, during the last centuries before Columbus arrived. The new...
View ArticleNew Partnership to Build Public Awareness of Global Earthquake Risk
USGS and the Global Earthquake Model Foundation take steps to save lives worldwide
View ArticleUSGS Hazard Science – Understanding the Risks is Key to Preparedness
Learn About USGS Hazards Science and More About National Preparedness Month: The very nature of natural hazards means that they have the potential to impact a majority of Americans every year. USGS...
View ArticleLarge M7.7 Caribbean Quake Felt as Far Away as Florida
On January 28, 2020, a magnitude 7.7 earthquake struck in the Caribbean Sea, roughly equidistant from the coasts of Jamaica, Cuba and the Cayman Islands. Seismic instruments immediately detected the...
View ArticleUSGS Scientists Find Seafloor Faults Near Puerto Rico Quakes’ Epicenters
Most residents of southern Puerto Rico were startled by the sequence of earthquakes that began Dec. 28, 2019 and included a magnitude 6.4 quake on Jan. 7, 2020. Aftershocks are expected to continue for...
View ArticleScientists Map Tectonic Structure Below the Seafloor of Puerto Rico
The USGS is working to identify and map faults in southern Puerto Rico, to estimate the location and magnitude of potential earthquakes.
View ArticleEarthquakes, Landslides, and Tsunamis: Mapping Geohazards in the Cascadia...
The geologic research and mapping in the offshore areas is foundational to understanding how to manage resources and improve public safety in subduction zone areas.
View ArticleA Massive Earthquake Is Coming to Cascadia—And It Can’t Be Stopped
This AtlasObscura article features USGS scientist Brian Atwater and University of Washington colleague, David Yamaguchi and their research on the Cascadia subduction zone.View A Massive Earthquake Is...
View ArticleNational Preparedness Month 2020: Earthquakes and Tsunamis
Natural hazards have the potential to impact a majority of Americans every year. USGS science provides part of the foundation for emergency preparedness whenever and wherever disaster strikes.
View ArticleShakeOut 2020: Staying Safe When the Ground Starts to Rumble
When the ground shakes, what do you do? ShakeOut 2020: Drop, Cover, and Hold On!
View ArticleBuilding SZ4D: A Town Hall Discussion and Workshop for a Research Initiative...
SZ4D is a new initiative in the U.S. research community to study subduction zones through both space and time, with a focus on the fundamental processes underlying geologic hazards such as great...
View ArticleSZ4D Virtual Town Hall: An Update and Discussion on the Developing Plans for...
February 26th, 2021 at 11 AM - 1 PM PSTZoom Webinar
View ArticlePCMSC scientists invited to present at the National Seismic Hazard Map Workshop
USGS Pacific Coastal and Marine Science Center research geologist Jenna Hill to present recent offshore work on the Cascadia Subduction Zone.
View ArticleUnlocking plate motions of the Cascadia subduction zone with seafloor geodesy
Seeking understanding of the fundamental constraints on plate motions, rates of convergence, and shallow strain accumulation across one of the United States’ most hazardous fault zones.
View ArticleOpportunity to Provide Feedback for SZ4D Program
To those interested in USGS SZS and the SZ4D Initiative (Subduction Zones in Four Dimensions)...
View ArticleFirst Draft of the SZ4D Implementation Plan
Members of the Subduction Zones in 4-Dimensions (SZ4D) initiative are pleased to present to you the first draft of the SZ4D implementation plan.
View ArticleWorld Tsunami Awareness Day November 5, 2022
A new infographic summarizes great Alaska earthquakes and their related history for generating dangerous Pacific tsunamis.
View ArticleAnnouncement: Subduction Zone Science Workshop - January 10–11, 2023
The U.S. Geological Survey invites you to a Subduction Zone Science workshop in Seattle at the University of Washington from January 10-11, 2023.
View ArticleNew Wave Glider will study Earthquake Processes along U.S. Subduction Zones
The USGS has acquired a new state-of-the-art wave glider for constraining plate motions and earthquake processes along U.S. subduction zones.
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