Event Number 816

M1.6 m NNE of Fremont, California at 2015/07/21 11:09:18 UTC / 2015/07/21 11:09:18 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 2.6km (1.6 mi)
HYPO2K = 3.0km (1.9 mi) Magnitude = -0.4

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2015/07/21 11:09:18  37.574 -121.968  M1.6   7.7 3km NNE of Fremont, California

EQPROC Summary:

816 2015Jul21 1109 18.49  37.5869 -121.9432 16.30 0.02 28.4 44.4 152  4
CML   SHZ PN 07 2015Jul21 1109 24.35 P U0  28.4   0.00
ADUB1 SHZ PN 01 2015Jul21 1109 25.73 P D2  37.9   0.00
B054  EHZ PB -- 2015Jul21 1109 25.73 P U1  37.9   0.00
B057  EHZ PB -- 2015Jul21 1109 31.29 P ?2  73.6   0.36

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG1 FMAG1 PMAG
 2015-07-21  1109 18.66  37 35.20  121W56.65  16.55  0.00  0.91  5.23        1.97  1.97E
                                                                                          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  151   5   3   4   0   4                                 2  0.18 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                     1.97      2  0.18 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
 CML  PN SHZ 07 A 28.4 115 118  PU    24.35  5.69  5.69 0.00  0.00  1.45  W  0.999 0.00 20.0   2.14 E                        
 B054 PB EHZ -- A 37.8 324 111  PU 1  25.73  7.07  7.07 0.00  0.00  1.09  W  0.999 0.00 1.00 4                               
 ADUB1PN SHZ 01 A 37.8 185 111  PD 2  25.73  7.07  7.07 0.00  0.00  0.73  W  1.000 0.00 13.0   1.79 E                        
 B057 PB EHZ -- A 73.4 312 101  P  2  31.29 12.63 12.63 0.00  0.00  0.73  W  0.999 0.00 1.00 4                               

Event Files: July 2015