Published May 2, 2003
| public
Journal Article
The Potential for Earthquake Early Warning in Southern California
- Creators
- Allen, Richard M.
-
Kanamori, Hiroo
Abstract
Earthquake mitigation efforts in the United States currently use long-term probabilistic hazard assessments and rapid post-earthquake notification to reduce the potential damage of earthquakes. Here we present the seismological design for and demonstrate the feasibility of a short-term hazard warning system. Using data from past earthquakes, we show that our Earthquake Alarm System (ElarmS) could, with current TriNet instrumentation, issue a warning a few to tens of seconds ahead of damaging ground motion. The system uses the frequency content of the P-wave arrival to determine earthquake magnitude, an approach that allows magnitude determination before any damaging ground motion occurs.
Additional Information
© 2003 American Association for the Advancement of Science. Received 27 November 2002; accepted 25 March 2003. We thank Y. Nakamura of Systems and Data Research Company, Japan, for discussions regarding UrEDAS, the Japanese earthquake early warning system; E. Hauksson and P. Small, both at the California Institute of Technology (Caltech), for their participation in discussions of the technical capabilities of TriNet; and two anonymous reviewers for their comments on this manuscript. Supported by the Seismological Laboratory at Caltech and the Graduate School of the University of Wisconsin-Madison.Additional details
- Eprint ID
- 51530
- DOI
- 10.1126/science.1080912
- Resolver ID
- CaltechAUTHORS:20141110-145341764
- Caltech Seismological Laboratory
- University of Wisconsin Madison
- Created
-
2014-11-11Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences