Event Number 1981

M2.3 m ENE of San Ramon, CA - 2020/10/12 01:16:40 37.792 -121.946 M2.3 10.9 3km ENE of San Ramon, CA at 2020/10/12 01:16:40 UTC / 2020/10/11 18:16:40 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 2.7km (1.7 mi)
HYPO2K = 3.7km (2.3 mi) Magnitude = -0.1

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2020/10/12 01:16:40  37.792 -121.946  M2.3  10.9 3km ENE of San Ramon, CA

EQPROC Summary:

1981 2020Oct12  116 41.17  37.7889 -121.9767  7.80 0.06 21.2 49.7 237  5
JCPZ  SHZ PN 01 2020Oct12  116 48.33 P U3  37.9   0.05
ADUB1 SHZ PN 01 2020Oct12  116 52.10 P D0  60.2   0.06
MTUMZ SHZ PN 01 2020Oct12  116 53.98 P U3  71.0   0.13
B054  EHZ PB -- 2020Oct12  116 45.49 P U0  21.2  -0.00
B057  EHZ PB -- 2020Oct12  116 51.05 P D3  58.3  -0.68

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2020-10-12  0116 41.54  37 48.125 121W59.347 10.31  0.02  2.79  7.10        2.35  2.35E   10.28
                                                                                          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  19.6  Emb  236   7   5   5   0   5      -                          4  2.35 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
                                                     2.35      4  2.35 E     31  5  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
 B054 PB EHZ -- A 19.6 290 114  PU    45.49  3.95  3.96 0.00 -0.01  1.94  W  0.999 0.00 25.0   2.22 E                        
 JCPZ PN SHZ 01 A 37.8 232 102  PU 3  48.33  6.79  6.77 0.00  0.02  0.48  W  0.967 0.00 29.0   2.47 E                        
 B057 PB EHZ -- A 56.5 297  98  PD 3  51.05  9.51  9.76 0.00 -0.25  0.16  W  0.958 0.00 17.0 1 1.99 E                        
 ADUB1PN SHZ 01 A 61.6 179  97  PD    52.10 10.56 10.57 0.00 -0.01  1.94  W  0.930 0.00 29.0   2.51 E                        
 MTUMZPN SHZ 01 A 72.5 173  96  PU 3  53.98 12.44 12.33 0.00  0.11  0.48  W  0.143 0.00 3.00 4 0.33XE                        

Event Files: October 2020