LONG VALLEY

This directory contains 3D velocity model and earthquake relocations near Long Valley caldera in eastern California.

Reference:

Lin, G. (2015), Seismic velocity structure and earthquake relocation for the magmatic system beneath Long Valley Caldera, eastern California, J. Volcanol. Geotherm. Res., 296:19-30.

File format description: 

2014  8 31 18 49  5.400  72289016 37.63475 -119.01526   2.742  0.40 4

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

where

      2014 = year

         8 = month

         31 = day

         18 = hour

        49 = minute

    5.400 = second

   72289016 = NCSN cuspid (up to 9 digits)

  37.63475 = latitude

-119.01526 = longitude

     2.742 = depth (km)

      0.40 = NCSN assigned magnitude (0.0 if unassigned)

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