Event Number 74

M3.9 4 km ( 3 mi) NNE of The Geysers, CA at 2012/07/09 00:01:16 UTC / 2012/07/09 00:01:16 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 33.6km (20.9mi)
HYPO2K = 41.6km (25.9mi) Magnitude = 0.3

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2012/07/09 00:01:16  38.834 -122.792  M3.9    0.0   4 km (  3 mi) NNE of The Geysers, CA

EQPROC Summary:

74 2012Jul 9    1 21.56  38.6436 -122.4919  2.77 0.05 25.7118.6 274  5
TASRZ SHZ PN 01 2012Jul 9    1 26.69 P ?0  25.7   0.00
JCPZ  SHZ PN 08 2012Jul 9    1 42.28 P D3 118.2   0.76
COS   SHZ PN 07 2012Jul 9    1 48.19 P U3 160.1   1.33
B057  EHZ PB -- 2012Jul 9    1 34.00 P ?3  68.8   0.00
B058  EHZ PB -- 2012Jul 9    1 54.51 PnU1 220.1   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2012-07-09  0001 15.08  39  3.49  122 24.32   4.36  0.35 20.14 12.28        3.60  3.60E
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    5    5  68.5  Emb  309   9   3   5   0   5      -                          4  0.53 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     3.60      4  0.53 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 68.5 203  92  P     26.69 11.61 11.61 0.00  0.00  2.00  W  0.996 0.00 17.0   2.00 E                        
 B057 PB EHZ -- A115.3 188  91  P  3  34.00 18.92 19.23 0.00 -0.31  0.50  W  0.776 0.00 73.0   3.45 E                        
 JCPZ PN SHZ 08 A163.3 177  66  PD 3  42.28 27.20 27.03 0.00  0.17  0.50  W  0.685 0.00  167 2 4.30 E                        
 COS  PN SHZ 07 A194.3 152  48  PU 3  48.19 33.11 31.30 0.00  1.81* 0.50  W  0.640 0.00  122   4.04 E                        
 B058 PB EHZ -- A261.0 163  48  PU 1  54.51 39.43 39.46 0.00 -0.03  1.50  W  0.902 0.00 3.00 4 0.54XE                        

Event Files: July 2012