Microearthquake Studies at the Salton Sea Geothermal Field

Description

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.

Resources

Name Format Description Link
47 This is a combined earthquake catalog of seismic events obtained from 1) the Matched Field Processing (MFP) earthquake detection technique and 2) the original relocated earthquake catalog of Haukkson et. al. [2011]. https://gdr.openei.org/files/250/Final_Catalog_MFP_Haukkson.txt

Tags

  • earthquakes
  • microearthquakes
  • seismicity
  • induced-seismicity
  • fracture
  • salton-sea
  • seismology
  • geothermal

Topics

Categories