Near real-time radar interferometry of the Mw 7.1 hector mine earthquake

Details Near real-time radar interferometry of the Mw 7.1 hector mine earthquake Near real-time radar interferometry of the Mw 7.1 hector mine earthquake

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3101s&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 19, p. 3101-3104

Physics

16

Geodesy And Gravity: Crustal Movements-Interplate, Geodesy And Gravity: Space Geodetic Surveys, Seismology: Earthquake Dynamics And Mechanics, Tectonophysics: Stresses-Crust And Lithosphere

Scientific paper

The Hector Mine Earthquake (Mw 7.1, 16 October 1999) ruptured 45 km of previously mapped and unmapped faults in the Mojave Desert. The ERS-2 satellite imaged the Mojave Desert on 15 September and again on 20 October, just 4 days after the earthquake. Using a newly-developed ground station we acquired both passes and were able to form an interferogram within 20 hours of the second overflight. Estimates of slip along the main rupture are 1-2 meters greater than slip derived from geological mapping. The gradient of the interferometric phase reveals an interesting pattern of triggered slip on adjacent faults as well as a 30 mm deep sink hole along Interstate 40.

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