Remotely triggered microearthquakes and tremor in central California following the 2010 Mw 8.8 Chile earthquake
Geophysical Research Letters
By: Zhigang Peng, David P. Hill, David R. Shelly, and Chastity Aiken
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
We examine remotely triggered microearthquakes and tectonic tremor in central California following the 2010 Mw 8.8 Chile earthquake. Several microearthquakes near the Coso Geothermal Field were apparently triggered, with the largest earthquake (Ml 3.5) occurring during the large-amplitude Love surface waves. The Chile mainshock also triggered numerous tremor bursts near the Parkfield-Cholame section of the San Andreas Fault (SAF). The locally triggered tremor bursts are partially masked at lower frequencies by the regionally triggered earthquake signals from Coso, but can be identified by applying high-pass or matched filters. Both triggered tremor along the SAF and the Ml 3.5 earthquake in Coso are consistent with frictional failure at different depths on critically-stressed faults under the Coulomb failure criteria. The triggered tremor, however, appears to be more phase-correlated with the surface waves than the triggered earthquakes, likely reflecting differences in constitutive properties between the brittle, seismogenic crust and the underlying lower crust.
Suggested Citation
Peng, Z., Hill, D.P., Shelly, D.R., Aiken, C., 2010, Remotely triggered microearthquakes and tremor in central California following the 2010 Mw 8.8 Chile earthquake: Geophysical Research Letters, v. 37, 6 p.; L24312, https://doi.org/10.1029/2010GL045462.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Remotely triggered microearthquakes and tremor in central California following the 2010 Mw 8.8 Chile earthquake |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2010GL045462 |
| Volume | 37 |
| Publication Date | December 31, 2010 |
| Year Published | 2010 |
| Language | English |
| Publisher | American Geophysical Union |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Volcano Science Center |
| Description | 6 p.; L24312 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| Country | United States |
| State | California |