Using 1-Hz GPS data to measure deformations caused by the denali fault earthquake
Science
By: K.M. Larson, P. Bodin, and J. Gomberg
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Abstract
The 3 November 2002 moment magnitude 7.9 Denali fault earthquake generated large, permanent surface displacements in Alaska and large-amplitude surface waves throughout western North America. We find good agreement between strong ground-motion records integrated to displacement and 1-hertz Global Positioning System (GPS) position estimates collected ??? 140 kilometers from the earthquake epicenter. One-hertz GPS receivers also detected seismic surface waves 750 to 3800 kilometers from the epicenter, whereas these waves saturated many of the seismic instruments in the same region. High-frequency GPS increases the dynamic range and frequency bandwidth of ground-motion observations, providing another tool for studying earthquake processes.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Using 1-Hz GPS data to measure deformations caused by the denali fault earthquake |
| Series title | Science |
| DOI | 10.1126/science.1084531 |
| Volume | 300 |
| Issue | 5624 |
| Year Published | 2003 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 1421 |
| Last page | 1424 |
| Google Analytic Metrics | Metrics page |