Event Number 2332

M2.8 km ESE of Alum Rock, CA - 2022/10/26 00:20:10 37.317 -121.683 M2.8 7.4 14km ESE of Alum Rock, CA at 2022/10/26 00:20:10 UTC / 2022/10/25 17:20:10 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 38.1km (23.7mi)
HYPO2K = 40.3km (25.1mi) Magnitude = -0.0

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2022/10/26 00:20:10  37.317 -121.683  M2.8   7.4 14km ESE of Alum Rock, CA

EQPROC Summary:

2332 2022Oct26   20  4.40  37.6186 -121.4764  1.00 0.25 12.0 61.6 128  7
RE9A7 EHZ AM 00 2022Oct26   20  7.35 P U1  12.0  -0.06
MTUMZ SHZ PN 01 2022Oct26   20 15.97 P U0  63.7  -0.33
ADUB1 SHZ PN 01 2022Oct26   20 16.38 P U0  60.7   0.60
ATZ   SHZ PN 01 2022Oct26   20 19.12 P D0  80.3   0.00
B058  EHZ PB -- 2022Oct26   20 21.22 P D0  91.5   0.27
B054  EHZ PB -- 2022Oct26   20 24.18 S D0  69.2  -2.30
B073  EHZ PB -- 2022Oct26   20 39.99 PgU3 205.8   2.34

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2022-10-26  0020  5.17  37 38.410 121W28.456  0.99  0.33  4.00 27.37        2.82  2.82E    0.96
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    6    6   9.8  Emb  165   6   6   5   0   6      -                          3  1.40 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
                                                     2.82      3  1.40 E     26  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
 RE9A7AM EHZ 00 A  9.8  31  27  PU 1   7.35  2.18  2.21 0.00 -0.03  0.79  W  0.999 0.00 1.00 4                               
 ADUB1PN SHZ 01 A 62.5 226  27  PU    16.38 11.21 10.78 0.00  0.43  1.05  W  0.961 0.00 55.0   3.12 E                        
 MTUMZPN SHZ 01 A 65.8 215  27  PU    15.97 10.80 11.32 0.00 -0.52* 1.05  W  0.442 0.00 29.0   2.51 E                        
 ATZ  PN SHZ 01 A 82.6 208  27  PD    19.12 13.95 14.04 0.00 -0.09  1.05  W  0.603 0.00 19.0 4 2.12XE                        
 B058 PB EHZ -- A 93.8 186  27  PD    21.22 16.05 15.87 0.00  0.18  1.05  W  0.993 0.00 33.0   2.66 E                        
 B073 PB EHZ -- A208.2 154  20  PU 3  39.99 34.82 33.45 0.00  1.37* 0.00  W  0.000 0.00 1.00 4                               

Event Files: October 2022