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Earthquake Ground-Motion Amplification in Southern California
Entry ID: USGS_OFR_2001_164

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Abstract: The two most important factors influencing the level of earthquake ground
motion at a site are the magnitude and distance of the earthquake. The map
available here shows the influence of a third important factor, the site
effect: conditions at a particular location can increase (amplify) or decrease
the level of shaking that is otherwise expected for a given magnitude and
distance. Combining information about site effects with where and how often
earthquakes of various magnitudes are likely to occur should provide improved
assessments of seismic hazard.

[Summary provided by the USGS.]
Related URL
Description: Earthquake Shaking - Finding the "Hot Spots".

Description: USGS Earthquake Hazards Program.
Multimedia Sample
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Geographic Coverage
Spatial coordinates   
  N: 35.0   S: 33.0   E: -117.0   W: -121.0

Data Set Citation
Dataset Originator/Creator: Edward H. Field
Dataset Title: Earthquake Ground-Motion Amplification in Southern California
Dataset Series Name: Open File Report
Dataset Release Date: 2001
Dataset Publisher: U.S. Geological Survey
Data Presentation Form: map
Online Resource:
ISO Topic Category
SEISMOMETERS Ancillary Description
Data Set Progress
Originating Center
Data Center
Publications-Western Region,Geological Division, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 650-329-5015
Fax: 650-329-5119
Email: cdonlin at
Contact Address:
U.S. Geological Survey
Geology Division
345 Middlefield Road
City: Menlo Park
Province or State: California
Postal Code: 94025
Country: USA

Data Center Personnel
Phone: (650) 329-5404
Email: mdiggles at
Contact Address:
U.S. Geological Survey
345 Middlefield Road
Mail Stop 531
City: Menlo Park
Province or State: CA
Postal Code: 94025
Country: USA
Distribution Media: Online
Distribution Size: 288 KB
Distribution Format: PDF
Fees: No fees
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-06-27
Last DIF Revision Date: 2016-11-18
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