This research interprets seismicity and geodetic data in terms of the geometry and stressing of locked fault zones which will rupture in large earthquakes. The studies will be carried out in the framework of the asperity model which regards a portion of a seismically active fault zone as being effectively locked against slip, except in large earthquakes, while adjacent portions of the zone slip aseismically, or with lower level seismicity, and do not accumulate comparable stress. The initial focus will be on modelling of the Shumagin Islands subduction segment in Alaska, and the Parkfield region along the San Andreas fault. This research is a component of the National Earthquake Hazard Reduction Program.

Agency
National Science Foundation (NSF)
Institute
Division of Earth Sciences (EAR)
Application #
9004556
Program Officer
James H. Whitcomb
Project Start
Project End
Budget Start
1990-08-15
Budget End
1993-01-31
Support Year
Fiscal Year
1990
Total Cost
$144,000
Indirect Cost
Name
Harvard University
Department
Type
DUNS #
City
Cambridge
State
MA
Country
United States
Zip Code
02138