San Andreas / Calaveras Fault Juncture
|
San Andreas / Calaveras Fault Juncture |
| Project Summary | We first relocated seismicity at the juncture of these two major faults to determine the subsurface seismic structure. Next we identified characteristically repeating earthquakes (CREs) using waveform cross-correlation techniques to investigate how slip at depth is being partitioned in this complex juncture zone. CREs are earthquakes with extremely similar waveforms that we believe are caused by repeated slip on the same fault zone patch. Essentially, our method treats each CRE sequence as a "creepmeter" at depth and derives a slip rate estimate at the location of the earthquake. |
| Tools | Double-difference earthquake relocation program (hypoDD), waveform cross-correlation techniques |
| Geographic Location | Juncture of the San Andreas and Southern Calaveras Faults, California |
| Group Members Involved | Dennise Templeton <Email>
<Personal
Web Site>
Robert Nadeau <Email> |
| Project Duration | 2000 - ongoing |
| More Information | < Project Web Site > |
|