Earthquake hazard map showing peak ground accelerations having a 2 percent probability of being exceeded in 50 years, for a firm rock site. The map is based on the USGS models for the conterminous U.S. (2023), Hawaii (2021), and Alaska (2023).

NRC-070 - U.S. Seismic Zone Map based on 1997 Uniform Building Code (UBC) map. Created Date: 5/8/2015 10:31:21 PM

Aug 3, 2020 · The maps displayed below show how earthquake hazards vary across the United States. Hazards are measured as the likelihood of experiencing earthquake shaking of various intensities. The colors in the maps denote “seismic design categories” (SDCs), which reflect the likelihood of experiencing earthquake shaking of various intensities.

Jan 16, 2024 · USGS scientists and our partners recently revealed the latest National Seismic Hazard Model, showing that nearly 75% of the United States could experience a damaging earthquake, emphasizing seismic hazards span a significant part of the country.

Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). Tap/click on "gear icon" for options and settings. Interactive fault map and comprehensive geologically based information on known or suspected active faults and folds in the United States. Also, generalized fault data used in the hazard maps.

The 2008 U.S. Geological Survey National Seismic Hazard Maps for the United States are based on current information about the rate at which earthquakes occur in different areas and on how far strong

Jul 5, 2018 · This map tool uses seismic risk zone data from GSA.gov KML by abhijit.adhikari. Last Modified: July 5, 2018 (0 ratings, 0 comments, 3,415 views)

Apr 3, 2012 · English: This map shows the seismic hazard zones in the United States. It also shows the states which are at a higher risk of receiving earthquakes.

Feb 14, 2024 · Western Nevada, the Wasatch Range in Utah, the Yellowstone region, and the New Madrid Seismic Zone (located at the nexus of Tennessee, Arkansas, Missouri, Illinois, and Kentucky) are likely to...

ASTM E2557 and the 1997 Uniform Building Code (UBC) established five seismic zones based on ground accelerations, as depicted in the Seismic Zone Map below. These zones serve as integral components of Seismic Risk Analysis (SRA) or Probable Maximum Loss (PML) studies. Lendors frequently require an SRA or PML study for sites located in zones 3 or 4.