Event Number 1475

M2.0 km E of Alum Rock, CA at 2017/12/27 07:21:11 UTC / 2017/12/27 07:21:11 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 2.6km (1.6 mi)
HYPO2K = 1.1km (0.7 mi) Magnitude = -0.0

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2017/12/27 07:21:11  37.356 -121.718  M2.0   8.1 10km E of Alum Rock, CA

EQPROC Summary:

1475 2017Dec27  721 11.91  37.3426 -121.6937 11.09 0.02 27.4 51.5 132  5
MTUMZ SHZ PN 01 2017Dec27  721 17.44 P U0  27.7   0.00
ADUB1 SHZ PN 01 2017Dec27  721 17.40 P ?0  27.4   0.01
CMP   SHZ PN 07 2017Dec27  721 18.34 P U0  33.2   0.00
B058  EHZ PB -- 2017Dec27  721 23.47 P ?3  61.2   0.59
B057  EHZ PB -- 2017Dec27  721 29.60 P D2 108.2   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2017-12-27  0721 11.98  37 21.96  121W42.36  13.11  0.08  1.32  7.56        2.04  2.04E   13.06
                                                                                          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  27.6  Emb  136   5   3   4   0   5      -                          3  0.36 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T DEPDAT NS ZT TYP
                                                     2.04      3  0.36 E     50  4  M CRH
 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 27.6 242 113  P     17.40  5.42  5.33 0.00  0.09  1.14  W  0.999 0.00 19.0   2.04 E                        
 MTUMZPN SHZ 01 A 29.1 216 111  PU    17.44  5.46  5.55 0.00 -0.09  1.14  W  0.999 0.00 13.0   1.68 E                        
 CMP  PN SHZ 07 A 34.4  91 108  PU    18.34  6.36  6.35 0.00  0.01  1.14  W  1.000 0.00 32.0   2.58 E                        
 B058 PB EHZ -- A 63.8 169 100  P  3  23.47 11.49 11.00 0.00  0.49  0.00  W  0.000 0.00 1.00 4                               
 B057 PB EHZ -- A105.5 315  96  PD 2  29.60 17.62 17.72 0.00 -0.10  0.57  W  1.000 0.00 1.00 4                               

Event Files: December 2017