Usgs seismic hazard map

Usgs seismic hazard map

We have produced probabilistic seismic hazard maps of Haiti for peak ground acceleration and response spectral accelerations that include the hazard from the major crustal faults, subduction zones, and background earthquakes. The Seismic Hazards Program maps existing landslides, and designates landslide zones of required investigation that identify areas where a site-specific hazard study and report with recommended countermeasures must be completed before a work permit is approved to construct buildings. Probabilistic seismic hazard maps were prepared for Hawaii portraying peak horizontal ground acceleration and horizontal spectral response acceleration for 0.2, 0.3, and 1.0 second periods with probabilities of exceedance of 10% in 50 years and 2% in 50 years.

Jul 17, 2014 · Abstract. The national seismic hazard maps for the conterminous United States have been updated to account for new methods, models, and data that have been obtained since the 2008 maps were released (Petersen and others, 2008). The U.S. Geological Survey’s maps of earthquake shaking hazards provide information essential to creating and updating the seismic design provisions of building codes and insurance rates used in the United States.

The National Seismic Hazard Maps developed by the USGS show the spatial probability of peak earthquake-driven ground motion levels. Since the last revisions to the map for Alaska in 2007, scientists have made significant advances in understanding active faulting, fault slip rates, and fault behavior. About Latest Earthquakes Version Info Clicking the list icon in the top right corner will load the earthquake list. Clicking the map icon in the top right corner will load the map. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options. State of California. Skip to Main Content. Menu Contact Search

The Seismic Hazards Program works closely with the U.S. Geological Survey to produce earthquake shaking maps that are used in development of building codes and in earthquake damage and loss estimates. Functions and Products of the Seismic Hazards Program. Seismic Hazards and Zones of Required Investigation

Mar 01, 2017 · New USGS maps identify potential ground-shaking hazards in 2017 from both human-induced and natural earthquakes in the central and eastern U.S., known as the CEUS. This is the second consecutive year both types of hazards are forecasted, as previous USGS maps only identified hazards from natural earthquakes. Apr 13, 2015 · The grid of points was contoured to produce the final representation of the seismic hazard. These maps are intended to summarize the available quantitative information about seismic ground motion hazard for the conterminous United States from geologic and geophysical sources. The 2008 U.S. Geological Survey (USGS) National Seismic Hazard Maps display earthquake ground motions for various probability levels across the United States and are applied in seismic provisions of building codes, insurance rate structures, risk assessments, and other public policy.

Seismic Hazard Maps and Site-Specific Data. U.S. Seismic Hazard Maps, hazard tools, and other products. Faults. 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. Scenarios Abstract. Probabilistic seismic-hazard maps were prepared for the conterminous United States portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. Quickly retrieve site structural design parameters specified by ASCE 7-10 and ASCE 7-16, including wind, seismic, snow, ice, rain, flood, and tsunami. ASCE 7 Hazard Tool

We have produced probabilistic seismic hazard maps of Haiti for peak ground acceleration and response spectral accelerations that include the hazard from the major crustal faults, subduction zones, and background earthquakes. Largest earthquakes, significant events, lists and maps by magnitude, by year, or by location. Special Earthquakes, Earthquake Sequences, and Fault Zones Compilations of information about significant earthquakes, swarms or sequences, and fault zones of interest. Search Earthquake Catalog View historic seismicity, find past earthquakes that meet ... California is the most geologically diverse and the second most seismically active state in the USA. The California Geological Survey provides scientific products and services about the state's geology, seismology and mineral resources, including their related hazards, that affect the health, safety, and business interests of the people of California. Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. About Latest Earthquakes Version Info Clicking the list icon in the top right corner will load the earthquake list. Clicking the map icon in the top right corner will load the map. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options.

The design values provided by the U.S. Seismic Design Maps tool are different than the USGS hazard values because the design values are the lesser of probabilistic and deterministic ground motion values. Also, for the 2009 NEHRP Recommended Seismic Provisions, the 2010 ASCE/SEI 7 Standard, and the 2012 International Building Code: Seismic Hazards Earthquakes, Faults, and Liquefaction. California Earthquake Hazards Zone Application (EQ Zapp) - Released March 2018, this is one of our most popular web maps. Find out if your property is in an Alquist-Priolo Earthquake Fault Zone or Seismic Hazard Zone, or both.

The California Geological Survey, a division within the California Department of Conservation, provides data and analysis of California's seismic and geologic hazards. These hazards include earth shaking (strong motion), fault ruptures, landslides, liquefaction, and tsunamis as well as mineral hazards such as radon, mercury, and asbestos.

California is the most geologically diverse and the second most seismically active state in the USA. The California Geological Survey provides scientific products and services about the state's geology, seismology and mineral resources, including their related hazards, that affect the health, safety, and business interests of the people of California. The Global Seismic Hazard Assessment Program (GSHAP) was launched in 1992 by the International Lithosphere Program (ILP) with the support of the International Council of Scientific Unions (ICSU), and endorsed as a demonstration program in the framework of the United Nations International Decade for Natural Disaster Reduction (UN/IDNDR).

The 2014 update of the U.S. Geological Survey (USGS) National Seismic Hazard Model (NSHM) for the conterminous United States (2014 NSHM; Petersen and others, 2014, 2015) included probabilistic ground motion maps for 2 percent and 10 percent probabilities of exceedance in 50 years, derived from seismic hazard curves for peak ground acceleration (PGA) and 0.2 and 1.0 second spectral ... Quickly retrieve site structural design parameters specified by ASCE 7-10 and ASCE 7-16, including wind, seismic, snow, ice, rain, flood, and tsunami. ASCE 7 Hazard Tool The 2008 U.S. Geological Survey (USGS) National Seismic Hazard Maps display earthquake ground motions for various probability levels across the United States and are applied in seismic provisions of building codes, insurance rate structures, risk assessments, and other public policy.

The website currently provides ASCE 7-16, ASCE 7-10, ASCE 41-13, ASCE 41-17, IBC 2015, IBC 2012, NEHRP-2015, and NEHRP 2009 seismic design map data. We will add more reference documents to the website as USGS adds more to their server. This is a free Seismic Design Tool for SEAOC members, non-members, industry partners, and the public. Probabilistic seismic hazard maps were prepared for Hawaii portraying peak horizontal ground acceleration and horizontal spectral response acceleration for 0.2, 0.3, and 1.0 second periods with probabilities of exceedance of 10% in 50 years and 2% in 50 years. The U.S. Geological Survey and the Swiss Seismological Service have released the first quantitative map of global seismic hazard. The Global Seismic Hazard Map is a product of the Global Seismic Hazard Assessment Program (GSHAP), launched in 1992 and terminated last year, which was part of the United Nations International Decade for Natural Disaster Reduction. The U.S. Geological Survey and the Swiss Seismological Service have released the first quantitative map of global seismic hazard. The Global Seismic Hazard Map is a product of the Global Seismic Hazard Assessment Program (GSHAP), launched in 1992 and terminated last year, which was part of the United Nations International Decade for Natural Disaster Reduction. The U.S. Geological Survey’s maps of earthquake shaking hazards provide information essential to creating and updating the seismic design provisions of building codes and insurance rates used in the United States.