The Geysers

This directory contains 3D velocity model and earthquake relocations for the Geysers Geothermal Field, eastern California.

Reference:

Lin, G. and B. Wu (2017), Seismic velocity structure and characteristics of induced seismicity at The Geysers geothermal field, eastern California, Geothermics, 71:225–233.

File format description: 

2009  1 26 15 54 33.060  40230859 37.58337 -118.81963   0.426  1.20 4

year mo dy hr mn  sec        cuspid        qlat           qlon          qdep  qmag  nloc  

where

      2009 = year

         1 = month

         26 = day

         15 = hour

        54 = minute

    33.060 = second

   40230859 = event cuspid (up to 9 digits)

  37.58337 = latitude

-118.81963 = longitude

     0.426 = depth (km)

      1.20 = network assigned magnitude (0.0 if unassigned)

         4 = location method flag (=3 for 3D, =4 for waveform cross-correlation)