Kinematics of the 2015 San Ramon, California earthquake swarm: Implications for fault zone structure and driving mechanisms
March 8, 2018
Earthquake swarms represent a sudden increase in seismicity that may indicate a heterogeneous fault-zone, the involvement of crustal fluids and/or slow fault slip. Swarms sometimes precede major earthquake ruptures. An earthquake swarm occurred in October 2015 near San Ramon, California in an extensional right step-over region between the northern Calaveras Fault and the Concord–Mt. Diablo fault zone, which has hosted ten major swarms since 1970. The 2015 San Ramon swarm is examined here from 11 October through 18 November using template matching analysis. The relocated seismicity catalog contains ∼4000 events with magnitudes between −0.2
Citation Information
| Publication Year | 2018 |
|---|---|
| Title | Kinematics of the 2015 San Ramon, California earthquake swarm: Implications for fault zone structure and driving mechanisms |
| DOI | 10.1016/j.epsl.2018.02.018 |
| Authors | Lian Xu, Roland Bürgmann, David R. Shelly, Christopher Johnson, Taka'aki Taira |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Earth and Planetary Science Letters |
| Index ID | 70251472 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Volcano Science Center |