Event Number 551

M2.6 m S of Concord, California at 2014/08/02 04:58:38 UTC / 2014/08/02 04:58:38 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 4.8km (3.0 mi)
HYPO2K = 3.5km (2.2 mi) Magnitude = -0.0

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2014/08/02 04:58:38  37.973 -122.030  M2.6  16.1 0km S of Concord, California

EQPROC Summary:

551 2014Aug 2  458 38.71  38.0127 -122.0521  8.76 0.02 21.4 49.4 209  5
JCPZ  SHZ PN 08 2014Aug 2  458 47.81 P ?3  52.9  -0.55
CBS   SHZ PN 07 2014Aug 2  458 46.57 P D0  42.2  -0.00
ADUB1 SHZ PN 01 2014Aug 2  458 53.41 P D1  85.3   0.01
B057  EHZ PB -- 2014Aug 2  458 47.09 P U0  45.3  -0.00
B054  EHZ PB -- 2014Aug 2  458 43.10 P U0  21.4   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2014-08-02  0458 39.29  38  0.04  122W 3.32   6.19  0.00  0.87  4.68        2.62  2.62E
                                                                                          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  20.1  Emb  204   8   4   4   0   5                                 4  0.30 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     2.62      4  0.30 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
 B054 PB EHZ -- A 20.1 220 102  PU    43.10  3.81  3.81 0.00  0.00  1.07  W  1.000 0.00 33.0   2.48 E                        
 CBS  PN SHZ 07 A 41.7 118  96  PD    46.57  7.28  7.28 0.00  0.00  1.07  W  1.000 0.00 33.0 4 2.61XE                        
 B057 PB EHZ -- A 44.9 274  95  PU    47.09  7.80  7.80 0.00  0.00  1.07  W  1.000 0.00 21.0   2.17 E                        
 JCPZ PN SHZ 08 A 51.5 208  94  P  3  47.81  8.52  8.86 0.00 -0.34  0.00  W  0.000 0.00 60.0   3.19 E                        
 ADUB1PN SHZ 01 A 83.9 175  92  PD 1  53.41 14.12 14.12 0.00  0.00  0.80  W  1.000 0.00 37.0   2.76 E                        

Event Files: August 2014