Event Number 1925

M3.0 m NE of Alum Rock, CA - 2020/08/02 12:40:24 37.408 -121.755 M3.0 9.0 8km NE of Alum Rock, CA at 2020/08/02 12:40:24 UTC / 2020/08/02 12:40:24 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 2.5km (1.5 mi)
HYPO2K = 1.2km (0.7 mi) Magnitude = 0.1

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2020/08/14 08:53:02  37.092 -122.354  M2.4   4.9 19km WNW of Bonny Doon, CA

EQPROC Summary:

1936 2020Aug14  853  1.81  37.0874 -122.3813  1.50 0.09 39.6 71.8 256  5
ADUB1 SHZ PN 01 2020Aug14  853  9.54 P U0  39.6   0.00
ATZ   SHZ PN 01 2020Aug14  853 10.33 P D0  44.3   0.01
RE9A7 EHZ AM 00 2020Aug14  853 22.56 P ?2 110.1   1.58
B058  EHZ PB -- 2020Aug14  853 15.71 P ?3  77.6  -0.26
B054  EHZ PB -- 2020Aug14  853 17.63 P U2  87.4   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2020-08-14  0853  3.06  37  5.416 122W20.588  1.41  0.02  1.75  8.26        2.32  2.32E    1.39
                                                                                          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  36.6  Emb  253   8   3   4   0   5      -                          2  2.31 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
                                                     2.32      2  2.31 E     16  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 36.6  61  35  PU     9.54  6.48  6.48 0.00  0.00  1.45  W  1.000 0.00 25.0   2.32 E                        
 ATZ  PN SHZ 01 A 41.4 107  35  PD    10.33  7.27  7.26 0.00  0.01  1.45  W  1.000 0.00 63.0   3.23 E                        
 B058 PB EHZ -- A 75.2 115  35  P  3  15.71 12.65 12.75 0.00 -0.10  0.36  W  1.000 0.00 5.00 4 0.82XE                        
 B054 PB EHZ -- A 86.4   8  35  PU 2  17.63 14.57 14.57 0.00  0.00  0.73  W  1.000 0.00 3.00 4 0.34XE                        
 RE9A7AM EHZ 00 A107.4  49  35  P  2  22.56 19.50 18.00 0.00  1.50* 0.00  W  0.000 0.00 7.00 4 1.18XE                        

Event Files: August 2020