Event Number 2328

M2.2 km ESE of Alum Rock, CA - 2022/10/25 19:02:35 37.345 -121.704 M2.2 7.8 11km ESE of Alum Rock, CA at 2022/10/25 19:02:35 UTC / 2022/10/25 12:02:35 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 42.3km (26.3mi)
HYPO2K = 43.3km (26.9mi) Magnitude = 0.4

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2022/10/25 19:02:35  37.345 -121.704  M2.2   7.8 11km ESE of Alum Rock, CA

EQPROC Summary:

2328 2022Oct25 1902 36.37  37.1273 -122.0958 23.00 0.12 16.8 56.6 209  5
MTUMZ SHZ PN 01 2022Oct25 1902 41.11 P U0  17.7  -0.26
ADUB1 SHZ PN 01 2022Oct25 1902 41.28 P U0  16.8   0.00
B058  EHZ PB -- 2022Oct25 1902 46.75 P D1  58.2   0.07
B054  EHZ PB -- 2022Oct25 1902 49.59 P ?3  81.9  -0.11
B057  EHZ PB -- 2022Oct25 1902 53.74 PgD1 108.3  -0.19

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2022-10-25  1902 36.51  37  6.760 122W 5.504 20.30  0.38 20.89 13.04        1.85  1.85E   20.25
                                                                                          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  17.8  Emb  211  15   4   5   0   5      -                          2  1.84 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
                                                     1.85      2  1.84 E     41  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
 MTUMZPN SHZ 01 A 17.8  75 132  PU    41.11  4.60  4.69 0.00 -0.09  1.33  W  0.557 0.00 15.0   1.85 E                        
 ADUB1PN SHZ 01 A 17.9  33 132  PU    41.28  4.77  4.70 0.00  0.07  1.33  W  0.562 0.00 29.0   2.49 E                        
 B058 PB EHZ -- A 57.3 127  91  PD 1  46.75 10.24 10.20 0.00  0.04  1.00  W  0.938 0.00 5.00 4 0.95XE                        
 B054 PB EHZ -- A 83.5 354  90  P  3  49.59 13.08 14.12 0.00 -1.04* 0.33  W  0.979 0.00 5.00 4 0.98XE                        
 B057 PB EHZ -- A109.8 338  90  PD 1  53.74 17.23 18.04 0.00 -0.81* 1.00  W  0.961 0.00 3.00 4 0.51XE                        

Event Files: October 2022