Event Number 257

M1.7 21 km ( 13 mi) NE of Alum Rock, CA at 2013/03/16 14:26:46 UTC / 2013/03/16 14:26:46 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 12.1km (7.5 mi)
HYPO2K = 13.9km (8.7 mi) Magnitude = -0.7

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2013/03/16 14:26:46  37.486 -121.639  M1.7    6.1  21 km ( 13 mi) NE  of Alum Rock, CA

EQPROC Summary:

257 2013Mar16 1426 46.15  37.3776 -121.6483  4.88 0.00 28.2 68.3 232  4
COS   SHZ PN 07 2013Mar16 1426 51.59 P U0  28.2   0.00
JCPZ  SHZ PN 08 2013Mar16 1426 57.65 P D3  64.0   0.00
B054  EHZ PB -- 2013Mar16 1426 59.07 P D2  72.4   0.00
B057  EHZ PB -- 2013Mar16 1427  4.56 P ?3 108.5   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2013-03-16  1426 46.45  37 21.63  121 38.34   4.86  0.07  4.05 10.12        2.35  2.35E
                                                                                          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  28.6  Emb  239   8   3   4   0   4      -                          2  0.17 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     2.35      2  0.17 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
 COS  PN SHZ 07 A 28.6  54  96  PU    51.59  5.14  5.14 0.00  0.00  2.00  W  0.999 0.00 31.0   2.48 E                        
 JCPZ PN SHZ 08 A 65.6 293  92  PD 3  57.65 11.20 11.14 0.00  0.06  0.50  W  0.999 0.00 19.0 2 2.10 E                        
 B054 PB EHZ -- A 74.3 319  92  PD 2  59.07 12.62 12.56 0.00  0.06  1.00  W  0.999 0.00 1.00 4                               
 B057 PB EHZ -- A110.3 313  91  P  3  64.56 18.11 18.41 0.00 -0.30  0.50  W  0.999 0.00 1.00 4                               

Event Files: March 2013