... by complications due to nonlinearity. The method is also applied to data from three earthquake swarms recorded by the Coso seismic network, in east-central California. These calculations reveal detectable differences in travel-time anomalies associated with these clusters of earthquakes. Apparently, significant...

... on the postseismic deformation that cannot be measured by traditional InSAR and is only sparsely measured by the Global Navigation Satellite System networks. The BOI data reveal up to 4 cm displacement in the along‐track direction, 10 km north of the northern tip of the seismic rupture, and up to 3 cm displacement...

... a catalog of seismicity compiled using a local seismic network and find that the behavior at CGF is identical to the surrounding area. Comparisons of seismicity rate changes calculated using a regional‐network‐derived catalog, and the local‐network‐derived catalog show that for a moderate, regional...

... the perimeter of the network, in Baja California, the Brawley Seismic Zone, Coso and the Mono Lakes area, the M L tends to be lower than the M w . Events in the Coastal Ranges (including the San Simeon aftershock zone) and Parkfield regions toward the northwest of the network exhibit M w solutions...

... to the Denali fault earthquake. These seismicity drops are in strong contrast to cases of short-term triggered seismicity increases observed at other volcanic systems such as Martin-Novarupta, Mt. Rainier, Yellowstone, Mammoth Mountain, and The Geysers, Coso and Cerro Prieto (Mexico) geothermal fields...

...Min Lou; J. A. Rial Abstract Microearthquakes recorded by a downhole, three-component seismic network deployed around the Coso, California, geothermal reservoir since 1992 display distinctive shear-wave splitting and clear polarization directions. From the polarizations we estimated three...

... noted previously. Finally, the section on "Application to Data from the Coso Seismic Network" demonstrates the usefulness of this approach when it is applied to some actual data from the network operated by the United States Geological Survey in the Coso Range of east-central California. 1753 1754 GARY...

...Figure 2. Map showing seismic stations in the Ridgecrest Coso region, which are labeled with their three or four letter code. Permanent Southern California Seismic Network (SCSN) stations (CI, network code) and partner stations (CE, NP, and PB) are shown as yellow triangles outlined with red...

... locations, shown in the plot as black lines, are from Jennings (1994). The locations of the seismic stations in the Coso microearthquake network (MEQ) are shown by solid triangles. (b) The 1996 and 1998 earthquake se- quences that have been analyzed in this study. They have been relocated using the Coso...

... that is statistically distinguishable from normal seismicity fluctuations. Even in the Coso region, where the local network provides compelling evidence for early triggered events, the rate increase is not significant with the beta statistic on the scdec catalog. Whether isolated earthquakes, such as the M 2.5...

... differential times from waveform cross correlation. The majority of the relocated seismicity is distributed above 12 km depth. The seismicity migration along the northwest–southeast direction can be clearly seen with an aseismic zone near the Coso volcanic field. Focal mechanisms are solved for all...

...Figure 1. Map of California, with polygons showing the Southern California Seismic Network (SCSN) and the Northern California Seismic System (NCSS) authoritative regions, as well as the Mendocino region and the three hydrothermal areas: Long Valley, Coso, and the Salton Sea. Circles show...

... in the last 30 years, the Southern California Seismic Network has recorded a M ≥ 3.0 earthquake in this part of the Salton Sea. However, those events showed focal mechanisms more consistent with the Brawley Seismic Zone. This is a region of seismicity that extends up the Imperial Valley from the Imperial...

... the inversion of earthquake focal mechanisms. The Ridgecrest region is close to the boundary between the authoritative regions of the Southern California Seismic Network (SCSN) and the Northern California Seismic System (NCSS), so focal mechanisms reported by both networks are used (see Data and Resources...

...Jonathan M. Lees Abstract We have searched the Coso geothermal field ( CGF ) for microseismicity in seismic doublets, co-located hypocenters that appear to have nearly identical waveforms. Using 1085 high-quality events from 1993 to 1994, we identified numerous doublets, some occurring within...