Hector Mine Earthquake SCIGN - GPS results

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Hector Mine EarthquakeSCIGN - GPS results

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• Ken Hudnut
• USGS

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Hector Mine (M7.1)
Photo by Paul Kip Otis-Diehl, USMC, 29 Palms
Helicopter support by OES and National Guard
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Surface rupture

• previously mapped by Diblee, but un-named
• Lavic Lake fault in recognition of breaks through
  dry lake bed
• up to 5.25 meters of right-lateral motion
• 45 km overall length of surface rupture
• only ruptured once prior through 50 ka alluvium

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A rip in the desert canvas - Los Angeles
Times
Katherine Kendrick, USGS
Chris Walls, Earth Consultants International
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Air photos10/18/99 daybreak
Photo by Paul Kip Otis-Diehl USMC, 29 Palms
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SCIGNco-seismicdisplacement field results
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Comparison combination of results
USGS, JPL SIO results as of 10/27
Initial SCIGN combined result
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SCIGNpost-seismicdisplacement field results
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Hector Mine earthquake SCIGN response efforts

• Data flow ensured
• telemetered sites
• non-telemetered sites
• Results computed
• analysis committee comparison and combination
• New stations deployed