Event Number 809

M3.1 m NW of The Geysers, California at 2015/07/20 17:33:26 UTC / 2015/07/20 17:33:26 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 41.9km (26.0mi)
HYPO2K = 21.9km (13.6mi) Magnitude = 0.3

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2015/07/20 17:33:26  38.819 -122.796  M3.1   3.7 5km NW of The Geysers, California

EQPROC Summary:

809 2015Jul20 1733 33.08  38.4506 -122.6930  2.00 0.21  4.4 87.1 177  6
TASRZ SHZ PN 01 2015Jul20 1733 33.91 P U2   4.4  -0.38
JCPZ  SHZ PN 08 2015Jul20 1733 51.33 P U0 101.2   0.48
ADUB1 SHZ PN 01 2015Jul20 1733 56.06 P D3 147.8  -0.92
CML   SHZ PN 07 2015Jul20 1733 56.08 P U3 141.8  -0.14
B054  EHZ PB -- 2015Jul20 1733 46.78 P U3  78.7  -0.57
B057  EHZ PB -- 2015Jul20 1733 42.20 P U0  48.4   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2015-07-20  1733 30.58  38 37.40  122W49.96   2.00  0.56 46.45 47.39        2.81  2.81E
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    6    6  18.5  Emb  340  11   6   6   0   6      -                          5  0.12 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     2.81      5  0.12 E
 REGION=                          

 STA NET COM L CR DIST AZM  AN P/S WT   SEC (TOBS -TCAL -DLY  =RES)  WT   SR  INFO  CAL  DUR-W-FMAG-T -AMP-U-PER-W-XMAG-T DE
 TASRZPN SHZ 01 A 18.5 143  90  PU 2  33.91  3.33  3.48 0.00 -0.15  0.92  W  0.636 0.00 13.0 1 1.58 E                        
 B057 PB EHZ -- A 70.2 160  90  PU    42.20 11.62 11.87 0.00 -0.25  1.85  W  0.987 0.00 39.0   2.80 E                        
 B054 PB EHZ -- A101.2 146  90  PU 3  46.78 16.20 16.92 0.00 -0.72* 0.46  W  0.522 0.00 39.0 1 2.83 E                        
 JCPZ PN SHZ 08 A123.3 158  90  PU    51.33 20.75 20.50 0.00  0.25  1.85  W  0.956 0.00 15.0 4 1.94XE                        
 CML  PN SHZ 07 A164.0 140  90  PU 3  56.08 25.50 27.13 0.00 -1.63* 0.46  W  0.576 0.00 63.0   3.36 E                        
 ADUB1PN SHZ 01 A170.1 153  90  PD 3  56.06 25.48 28.12 0.00 -2.64* 0.46  W  0.320 0.00 31.0 2 2.69 E                        

Event Files: July 2015