Remotely triggered microearthquakes and tremor in central California following the 2010 Mw 8.8 Chile earthquake

作者: Zhigang Peng , David P. Hill , David R. Shelly , Chastity Aiken

DOI: 10.1029/2010GL045462

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摘要: [1] We examine remotely triggered microearthquakes and tectonic tremor in central California following the 2010 Mw 8.8 Chile earthquake. Several near Coso Geothermal Field were apparently triggered, with largest earthquake (Ml 3.5) occurring during large-amplitude Love surface waves. The mainshock also numerous bursts Parkfield-Cholame section of San Andreas Fault (SAF). locally are partially masked at lower frequencies by regionally signals from Coso, but can be identified applying high-pass or matched filters. Both along SAF Ml 3.5 consistent frictional failure different depths on critically-stressed faults under Coulomb criteria. tremor, however, appears to more phase-correlated waves than earthquakes, likely reflecting differences constitutive properties between brittle, seismogenic crust underlying crust.

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