Earthquake Scenario and Probabilistic Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area

Earthquake Scenario and Probabilistic Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area PDF Author: Ivan Gynmun Wong
Publisher: Utah Geological Survey
ISBN: 1557916667
Category : Science
Languages : en
Pages : 56

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Book Description
The Salt Lake City metropolitan area is one of the most seismically hazardous urban areas in the interior of the western U.S. because of its location within the Intermountain Seismic Belt and its position adjacent to the active Wasatch fault. The elapsed time since the last large earthquake on the Salt Lake City segment of the Wasatch fault is approaching the mean recurrence interval based on the short-term paleoseismic record. In order to help raise the awareness of the general public and to help reduce earthquake risk in this area, we have developed nine microzonation maps showing surficial ground-shaking hazard. The maps are GIS-based and incorporate the site response effects of the unconsolidated sediments that underlie most of the metropolitan area within Salt Lake Valley. These nine maps, at a scale of 1:75,000, make up three sets, each consisting of three maps that display color-contoured ground motions in terms of (1) peak horizontal acceleration, (2) horizontal spectral acceleration at a period of 0.2 sec (5 Hz) and, (3) horizontal spectral acceleration at a period of 1.0 sec (1 Hz). One set of maps consists of deterministic or “scenario” maps for a moment magnitude (M) 7.0 earthquake on the Salt Lake City segment of the Wasatch fault. The two other sets are probabilistic maps for the two return periods of building code relevance, 500 and 2,500 years.

Earthquake Scenario and Probabilistic Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area

Earthquake Scenario and Probabilistic Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area PDF Author: Ivan Gynmun Wong
Publisher: Utah Geological Survey
ISBN: 1557916667
Category : Science
Languages : en
Pages : 56

Get Book Here

Book Description
The Salt Lake City metropolitan area is one of the most seismically hazardous urban areas in the interior of the western U.S. because of its location within the Intermountain Seismic Belt and its position adjacent to the active Wasatch fault. The elapsed time since the last large earthquake on the Salt Lake City segment of the Wasatch fault is approaching the mean recurrence interval based on the short-term paleoseismic record. In order to help raise the awareness of the general public and to help reduce earthquake risk in this area, we have developed nine microzonation maps showing surficial ground-shaking hazard. The maps are GIS-based and incorporate the site response effects of the unconsolidated sediments that underlie most of the metropolitan area within Salt Lake Valley. These nine maps, at a scale of 1:75,000, make up three sets, each consisting of three maps that display color-contoured ground motions in terms of (1) peak horizontal acceleration, (2) horizontal spectral acceleration at a period of 0.2 sec (5 Hz) and, (3) horizontal spectral acceleration at a period of 1.0 sec (1 Hz). One set of maps consists of deterministic or “scenario” maps for a moment magnitude (M) 7.0 earthquake on the Salt Lake City segment of the Wasatch fault. The two other sets are probabilistic maps for the two return periods of building code relevance, 500 and 2,500 years.

Earthquake Scenario Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area

Earthquake Scenario Ground Shaking Maps for the Salt Lake City, Utah, Metropolitan Area PDF Author: Ivan Gynmun Wong
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 114

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Book Description


Earthquake Scenario and Probabilistic Ground Shaking Maps for the Portland, Oregon, Metropolitan Area

Earthquake Scenario and Probabilistic Ground Shaking Maps for the Portland, Oregon, Metropolitan Area PDF Author:
Publisher:
ISBN:
Category : Earthquakes
Languages : en
Pages : 84

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Book Description


Earthquake Site Conditions in the Wasatch Front Corridor, Utah

Earthquake Site Conditions in the Wasatch Front Corridor, Utah PDF Author: Greg N. McDonald
Publisher: Utah Geological Survey
ISBN: 1557917922
Category :
Languages : en
Pages : 46

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Book Description
This CD contains a 41-page report and a 1:150,000-scale map defining seismic site conditions for the Wasatch Front urban corridor. This mapping, partially funded through the U.S. Geological Survey’s National Hazards Reduction Program, provides a basis for predicting how certain soils and bedrock types may respond to ground-motion amplification in a large-magnitude earthquake on the Wasatch fault. Average shear-wave velocities were used for the upper 30 meters and surficial geologic mapping to delineate and characterize earthquake-site-conditions units that relate to International Building Code site classes. Better understanding of soil properties and earthquake-site effects for the densely populated Wasatch Front allows for improved earthquake engineering and emergency planning and response. 41 pages + 1 plate

107-2 Hearings: Department of The Interior and Related Agencies Appropriations for 2003, Part 2, 2002, *

107-2 Hearings: Department of The Interior and Related Agencies Appropriations for 2003, Part 2, 2002, * PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1262

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Department of the Interior and Related Agencies Appropriations for 2003

Department of the Interior and Related Agencies Appropriations for 2003 PDF Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 2524

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Survey Notes

Survey Notes PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 56

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Earthquakes and Earthquake Insurance

Earthquakes and Earthquake Insurance PDF Author: United States. Congress. House. Committee on Banking, Finance, and Urban Affairs. Subcommittee on Policy Research and Insurance
Publisher:
ISBN:
Category : Disaster insurance
Languages : en
Pages : 1424

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Housing Needs in Earthquake Disaster Areas

Housing Needs in Earthquake Disaster Areas PDF Author: United States. Congress. House. Committee on Banking, Finance, and Urban Affairs. Subcommittee on Housing and Community Development
Publisher:
ISBN:
Category : Disaster relief
Languages : en
Pages : 1226

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Annual Meeting

Annual Meeting PDF Author: Association of Engineering Geologists
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 268

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Book Description