Skip to main content
U.S. flag

An official website of the United States government

Earthquake Hazards

The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. Explore and search below.

Filter Total Items: 152

M7.3 June 28, 1992 Landers Earthquake

“The Landers earthquake, which had a moment magnitude (Mw) of 7.3, was the largest earthquake to strike the contiguous United States in 40 years. This earthquake resulted from the rupture of five major and many minor right-lateral faults near the southern end of the eastern California shear zone.” —Kerry Sieh et al., Science, v 260, issue 5105, 171-176.
link

M7.3 June 28, 1992 Landers Earthquake

“The Landers earthquake, which had a moment magnitude (Mw) of 7.3, was the largest earthquake to strike the contiguous United States in 40 years. This earthquake resulted from the rupture of five major and many minor right-lateral faults near the southern end of the eastern California shear zone.” —Kerry Sieh et al., Science, v 260, issue 5105, 171-176.
Learn More

Request for Hazard Modeling Contributions

The U.S. Geological Survey (USGS) will publish an updated National Seismic Hazard Model (NSHM) in 2023 covering the conterminous U.S. (CONUS), Alaska, and Hawaii (50-State Update). The next update of the NSHM for Puerto Rico and the U.S. Virgin Islands (PRVI) will be in 2025.
link

Request for Hazard Modeling Contributions

The U.S. Geological Survey (USGS) will publish an updated National Seismic Hazard Model (NSHM) in 2023 covering the conterminous U.S. (CONUS), Alaska, and Hawaii (50-State Update). The next update of the NSHM for Puerto Rico and the U.S. Virgin Islands (PRVI) will be in 2025.
Learn More

Earthquake Early Warning - Overview

USGS is actively pursuing research in earthquake early warning.
link

Earthquake Early Warning - Overview

USGS is actively pursuing research in earthquake early warning.
Learn More
link

Introduction to the National Seismic Hazard Maps

Information for PIs

Information for PIs.
link

Information for PIs

Information for PIs.
Learn More

Thailand Seismic Hazard Workshop - 2007

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
link

Thailand Seismic Hazard Workshop - 2007

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
Learn More

Workshop on Hazard from Induced Seismicity

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
link

Workshop on Hazard from Induced Seismicity

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
Learn More

Pacific Northwest Workshop - 2006

The links in the following agenda are to PDF files of participants that have granted permission to view their presentations at the CEUS workshop.
link

Pacific Northwest Workshop - 2006

The links in the following agenda are to PDF files of participants that have granted permission to view their presentations at the CEUS workshop.
Learn More

Next Generation Attenuation (NGA) Relationships Workshop - 2006

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
link

Next Generation Attenuation (NGA) Relationships Workshop - 2006

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
Learn More

Pacific Northwest Workshop - 2012

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations at the PacNW workshop.
link

Pacific Northwest Workshop - 2012

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations at the PacNW workshop.
Learn More

Central and Eastern U.S. Workshop - 2006

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
link

Central and Eastern U.S. Workshop - 2006

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations.
Learn More

Intermountain West Workshop - 2012

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations at the INW workshop.
link

Intermountain West Workshop - 2012

The links in the following agendas are to PDF files of participants that have granted permission to view their presentations at the INW workshop.
Learn More