NSHM29 Western U.S. Earthquake Geology Development
Active
By Earthquake Hazards Program
October 28, 2026
Thursday, November 19, 2026
2:00 pm MST
A Virtual Meeting
Please join the Earthquake Geology Working Group for a workshop detailing recent developments to the 2029 U.S. National Seismic Hazard Model western U.S. earthquake geology datasets. This workshop will be held virtually on Microsoft Teams.
Please RSVP here: https://forms.cloud.microsoft/g/ugu4YVjrQm.
If you have questions, please don’t hesitate to ask by emailing Alex Hatem (ahatem@usgs.gov).
2023 50-State Long-term National Seismic Hazard Model
The 2023 50-State Update of the U.S. National Seismic Hazard Model (NSHM) defines the potential for earthquake ground shaking for various probability levels across the conterminous United States, Alaska, and Hawaii and is applied in seismic provisions of building codes, insurance rate structures, risk assessments, and other public policy. The updated model represents an assessment of the best...
2023 50-State National Seismic Hazard Model
Posted in 2019: The updates for the conterminous U.S. and Alaska will follow the schedule below. The update for Hawaii is already underway and will likely be published before 2023, but any additional updates will also follow the schedule below.
The 2023 National Seismic Hazard Model – What's Shaking?
No one can predict earthquakes. But existing faults and past earthquakes give us information about future earthquakes, and geology tells us how the ground shakes during an earthquake.
Introduction to the National Seismic Hazard Models
A primary responsibility of the USGS National Seismic Hazard Model (NSHM) Project is to model the ground shaking hazard from potentially damaging earthquakes for the United States and its territories. The model results can be summarized with different map views and here, we describe the maps and important features (what they show and what they don't show).
National Seismic Hazard Model
Earthquakes cause an estimated annualized loss to the U.S. of several billions of dollars. To mitigate earthquake losses, it is necessary to evaluate the earthquake hazards across the country.
2023 50-State Long-term National Seismic Hazard Model
The 2023 50-State Update of the U.S. National Seismic Hazard Model (NSHM) defines the potential for earthquake ground shaking for various probability levels across the conterminous United States, Alaska, and Hawaii and is applied in seismic provisions of building codes, insurance rate structures, risk assessments, and other public policy. The updated model represents an assessment of the best...
2023 50-State National Seismic Hazard Model
Posted in 2019: The updates for the conterminous U.S. and Alaska will follow the schedule below. The update for Hawaii is already underway and will likely be published before 2023, but any additional updates will also follow the schedule below.
The 2023 National Seismic Hazard Model – What's Shaking?
No one can predict earthquakes. But existing faults and past earthquakes give us information about future earthquakes, and geology tells us how the ground shakes during an earthquake.
Introduction to the National Seismic Hazard Models
A primary responsibility of the USGS National Seismic Hazard Model (NSHM) Project is to model the ground shaking hazard from potentially damaging earthquakes for the United States and its territories. The model results can be summarized with different map views and here, we describe the maps and important features (what they show and what they don't show).
National Seismic Hazard Model
Earthquakes cause an estimated annualized loss to the U.S. of several billions of dollars. To mitigate earthquake losses, it is necessary to evaluate the earthquake hazards across the country.