0000091073 00000 n 33 0 obj <>stream 0000093862 00000 n 2018 Long-term National Seismic Hazard Map. Locally, the hazard may be greater than shown, because site geology may amplify ground motions. What do I need to know about earthquake hazards? 0000101052 00000 n DISCLAIMER.
States Seismic th Dakota Bismarck e S Ota st. Paul Des Moines Zones 'son Map c rd Boston ence Seismic Zones (Ground Acceleration) Zone o = o.og Zone 1 = 0.075g Zone 2A = 0.15g Zone 2B = 0.20g Zone 3 = 0.30g Zone 4 = 0.40g Source: 1997 Edition UBC Bóise Rexburg Cheyenn umbus Charl Franhtori ontpeli c any Plains White Harrisburg Washingtón The models are based on seismicity and fault-slip rates, and take into account the frequency of earthquakes of various magnitudes. 0000027739 00000 n %%EOF USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards 17. 0000093538 00000 n 0000100822 00000 n 4 30 0000088433 00000 n 0000096820 00000 n h�b``�f``�����خŀ Also, generalized fault data used in the hazard maps.2018 Long-term National Seismic Hazard Map. 0000088320 00000 n 0000000896 00000 n
������sX��4302��4��8���`���K\ �r�YV�t�N|��0�����>/8��0oa�E�8}�R �0 �M 0000097203 00000 n In addition, workshops are held for feedback and comments. 0000069385 00000 n Around the New Madrid (MO) Seismic Zone in the Central United States and along coastal South Caroli-na and Oregon, the new maps have decreased the seismic forces that engineers must design against by as much as 30 percent compared to corresponding uniform-hazard maps like those used in previous IBC … (Public domain.) 0000100472 00000 n The map is based on the most recent USGS models for the conterminous U.S. The USGS requests that the earthquake hazard community bring to our attention new earthquake source and ground motion data or models that could be included in the National Seismic Hazard Model (NSHM) updates. 0000002388 00000 n What does "earthquake hazard" mean?Interactive fault map and information on known or suspected active faults and folds in the United States. Earthquake hazard map showing peak ground accelerations having a 2 percent probability of being exceeded in 50 years, for a firm rock site. 0000002781 00000 n Use our IBC Seismic Design Categories map to easily obtain the seismic design category and spectral response acceleration parameter (Section 1613 of the IBC 2015) for any location in the contiguous United States, Puerto Rico and Alaska. 4 0 obj <> endobj 0000052114 00000 n 0000001083 00000 n 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 most recent USGS models for the conterminous U.S. (2018), Hawaii (1998), and Alaska (2007). H��W]�G�+���E���n$b�� �� Ahco�u쵰c��sΩ���dm@��N�鮮�S5��~�$���l�f�'=}����{ 6�8é�jo��Ux��m~��6���q����ś�����K8�V��C���\���M�t\Y�Z3�1���;O? 0 0000000016 00000 n
%PDF-1.4 %���� 0000001143 00000 n Therefore, maps are provided of rainfall, seismic, snow and wind criteria in different regions. While the information presented on this website is believed to be correct, SEAOC /OSHPD and its sponsors and contributors assume no responsibility or liability for its accuracy. 0000079520 00000 n 0000069570 00000 n The next update of the NSHM for the conterminous U.S. (CONUS) will be in 2023.What are the USGS National Seismic Hazard Maps and how are they used? ... provides a road map of the applicable technical requirements for steel structures. 0000091417 00000 n Chapter . 0000001579 00000 n 0000040210 00000 n <<0614132B01FC4340849FB0F74D2ED599>]/Prev 104614>> 0000040621 00000 n You can click on the map below to determine the seismic design category (SDC) and response parameter (S DS) for that location. 0000015307 00000 n
0000060585 00000 n startxref Special Inspections and Tests.
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trailer Zone 0 = 0.0g Zone 1 = 0.075g Zone 2A = 0.15g Zone 2B = 0.20g Zone 3 = 0.30g Zone 4 = 0.40g Source: 1997 Edition UBC Seismic Zones (Ground Acceleration) Kaua‘i O‘ahu Maui Honolulu Seattle Portland Rexburg Reno Los Angeles Las Vegas San Francisco San Jose ... United States Seismic Zones Map. 0000068974 00000 n