Event Number 48

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 4.6km (2.9 mi)
HYPO2K = 4.6km (2.9 mi) Magnitude = -0.6

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2012/06/20 07:16:51  37.430 -121.773  M1.9   10.2   8 km (  5 mi) NE  of Alum Rock, CA

EQPROC Summary:

48 2012Jun20  716 51.14  37.4699 -121.7882  6.00 0.00 30.0 39.0 158  4
ADUB1 SHZ PN 01 2012Jun20  716 56.88 P D2  30.0  -0.00
LCGP2 SHZ PN 01 2012Jun20  716 58.58 P D1  40.0  -0.00
COS   SHZ PN 07 2012Jun20  716 58.03 P U0  36.8  -0.00
JCPZ  SHZ PN 08 2012Jun20  717  0.03 P ?3  49.0  -0.07

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2012-06-20  0716 51.54  37 27.98  121 47.24   6.00  0.00  0.94  8.31        2.48  2.48E
                                                                                          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  29.7  Emb  155   6   3   4   0   4      -                          2  0.06 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     2.48      2  0.06 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
 ADUB1PN SHZ 01 A 29.7 216  98  PD 2  56.88  5.34  5.34 0.00  0.00  0.80  W  1.000 0.00 1.00 4                               
 COS  PN SHZ 07 A 36.9  82  96  PU    58.03  6.49  6.49 0.00  0.00  1.60  W  1.000 0.00 31.0   2.53 E                        
 LCGP2PN SHZ 01 A 40.3 275  95  PD 1  58.58  7.04  7.04 0.00  0.00  1.20  W  0.999 0.00 3.00 4 0.29XE                        
 JCPZ PN SHZ 08 A 49.3 287  94  P  3  60.03  8.49  8.50 0.00 -0.01  0.40  W  0.999 0.00 27.0   2.42 E