Event Number 1751

M1.9 m E of Alum Rock, CA at 2019/06/25 12:32:27 UTC / 2019/06/25 12:32:27 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 6.2km (3.9 mi)
HYPO2K = 6.4km (4.0 mi) Magnitude = -0.8

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2019/06/25 12:32:27  37.379 -121.737  M1.9   6.5 8km E of Alum Rock, CA

EQPROC Summary:

1751 2019Jun25 1232 27.12  37.4110 -121.6793  2.50 0.01 32.2 59.3 149  4
ADUB1 SHZ PN 01 2019Jun25 1232 33.40 P D0  32.2  -0.00
CMP   SHZ PN 07 2019Jun25 1232 33.44 P U0  32.4  -0.00
B057  EHZ PB -- 2019Jun25 1232 45.19 P U2 104.0  -0.00
B058  EHZ PB -- 2019Jun25 1232 39.73 P U3  68.5   0.17

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2019-06-25  1232 27.73  37 24.45  121W40.68   2.50  0.08  0.97 10.85        2.65  2.65E    2.47
                                                                                          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  32.1  Emb  147   7   4   4   0   4      -                          2  0.33 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
                                                     2.65      2  0.33 E     32  3  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 32.1 237  90  PD    33.40  5.67  5.70 0.00 -0.03  1.45  W  0.999 0.00 27.0   2.36 E                        
 CMP  PN SHZ 07 A 32.3  99  90  PU    33.44  5.71  5.73 0.00 -0.02  1.45  W  0.999 0.00 54.0 1 3.03 E                        
 B058 PB EHZ -- A 68.0 172  90  PU 3  39.73 12.00 11.52 0.00  0.48  0.36  W  0.999 0.00 1.00 4                               
 B057 PB EHZ -- A104.2 312  90  PU 2  45.19 17.46 17.40 0.00  0.06  0.73  W  0.999 0.00 3.00 4 0.36XE                        

Event Files: June 2019