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Title: Microearthquake Studies at the Salton Sea Geothermal Field

The objective of this project is to detect and locate microearthquakes to aid in the characterization of reservoir fracture networks. Accurate identification and mapping of the large numbers of microearthquakes induced in EGS is one technique that provides diagnostic information when determining the location, orientation and length of underground crack systems for use in reservoir development and management applications. Conventional earthquake location techniques often are employed to locate microearthquakes. However, these techniques require labor-intensive picking of individual seismic phase onsets across a network of sensors. For this project we adapt the Matched Field Processing (MFP) technique to the elastic propagation problem in geothermal reservoirs to identify more and smaller events than traditional methods alone.
Publication Date:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
AID 19981
Resource Type:
Data Type:
Numeric Data
Research Org:
DOE Geothermal Data Repository; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org:
\; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G)
Contributing Orgs:
Lawrence Livermore National Laboratory
Country of Publication:
United States
15 Geothermal Energy geothermal; seismicity; earthquakes; microearthquakes; induced seismicity; fracture; seismology