Event Number 279

M2.7 11 km ( 7 mi) SW of Brentwood, CA at 2013/04/11 20:25:14 UTC / 2013/04/11 20:25:14 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 11.0km (6.8 mi)
HYPO2K = 7.5km (4.7 mi) Magnitude = -0.3

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2013/04/11 20:25:14  37.861 -121.790  M2.7   13.0  11 km (  7 mi) SW  of Brentwood, CA

EQPROC Summary:

279 2013Apr11 2025 16.42  37.8599 -121.9148 25.98 0.00 25.1 50.2 257  4
JCPZ  SHZ PN 08 2013Apr11 2025 25.17 P U3  47.0   0.00
ADUB1 SHZ PN 01 2013Apr11 2025 27.88 P ?1  68.3   0.00
B057  EHZ PB -- 2013Apr11 2025 26.87 P U0  60.4   0.00
B054  EHZ PB -- 2013Apr11 2025 22.48 P U0  25.1   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2013-04-11  2025 15.46  37 52.40  121 52.61  31.86  0.00  5.57  1.77        3.02  3.02E
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    4    4  28.4  Emb  262   6   3   4   0   4                                 4  0.31 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     3.02      4  0.31 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 28.4 268 134  PU    22.48  7.02  7.02 0.00  0.00  1.33  W  0.999 0.00 33.0   2.84 E                        
 JCPZ PN SHZ 08 A 50.5 232 116  PU 3  25.17  9.71  9.71 0.00  0.00  0.33  W  0.999 0.00  198   4.65 E                        
 B057 PB EHZ -- A 62.9 286 110  PU    26.87 11.41 11.41 0.00  0.00  1.33  W  0.999 0.00 23.0   2.59 E                        
 ADUB1PN SHZ 01 A 70.1 188 108  P  1  27.88 12.42 12.42 0.00  0.00  1.00  W  0.999 0.00 43.0   3.20 E                        

Event Files: April 2013