Event Number 2317

M3.4 km NE of Alum Rock, CA - 2022/09/28 17:02:02 37.502 -121.621 M3.4 7.2 24km NE of Alum Rock, CA at 2022/09/28 17:02:02 UTC / 2022/09/28 10:02:02 PDT

Error Map and Stations Used to Locate Event


   

   





Errors from USGS Location and Magnitude:

EQPROC =  4.6km (2.8 mi)

HYPO2K =  3.5km (2.1 mi)
Magnitude = 0.1


USGS Report:


Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2022/09/28 17:02:02  37.502 -121.621  M3.4   7.2 24km NE of Alum Rock, CA



EQPROC Summary:


2317 2022Sep28 1702  2.66  37.5113 -121.6715  9.49 0.12 31.9 77.5 104  8
RE9A7 EHZ AM 00 2022Sep28 1702  8.82 P D0  31.9  -0.00
MTUMZ SHZ PN 01 2022Sep28 1702 10.52 P U0  44.5  -0.40
ADUB1 SHZ PN 01 2022Sep28 1702 10.17 P D0  40.0  -0.00
ATZ   SHZ PN 01 2022Sep28 1702 14.00 P U0  62.5   0.04
B057  EHZ PB -- 2022Sep28 1702 18.68 P U0  97.5  -0.39
B058  EHZ PB -- 2022Sep28 1702 16.11 P D3  79.5  -0.33
B054  EHZ PB -- 2022Sep28 1702 13.63 P U0  60.6  -0.01
B073  EHZ PB -- 2022Sep28 1702 32.86 PnD2 203.6   0.19



HYPO2K Report:


 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2022-09-28  1702  2.48  37 30.556 121W39.398 20.09  0.25  1.20  4.72        3.26  3.26E   20.05
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    8    8  31.2  Emb  106  21   8   8   0   8      #                          5  0.51 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
                                                     3.26      5  0.51 E     32  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 31.2  42 111  PD     8.82  6.34  6.37 0.00 -0.03  1.22  W  0.996 0.00 29.0 4 2.57XE                        
 ADUB1PN SHZ 01 A 40.8 225  98  PD    10.17  7.69  7.75 0.00 -0.06  1.22  W  0.497 0.00 95.0   3.77 E                        
 MTUMZPN SHZ 01 A 44.9 209  94  PU    10.52  8.04  8.15 0.00 -0.11  1.22  W  0.340 0.00 37.0   2.86 E                        
 B054 PB EHZ -- A 61.7 310  90  PU    13.63 11.15 10.86 0.00  0.29  1.22  W  0.499 0.00 55.0   3.26 E                        
 ATZ  PN SHZ 01 A 62.7 201  90  PU    14.00 11.52 11.02 0.00  0.50* 1.22  W  0.419 0.00 25.0 4 2.50XE                        
 B058 PB EHZ -- A 79.1 175  90  PD 3  16.11 13.63 13.45 0.00  0.18  0.30  W  0.052 0.00 39.0   2.95 E                        
 B057 PB EHZ -- A 98.6 306  90  PU    18.68 16.20 16.37 0.00 -0.17  1.22  W  0.490 0.00 45.0   3.11 E                        
 B073 PB EHZ -- A203.2 148  54  PD 2  32.86 30.38 30.71 0.00 -0.33  0.38  W  0.705 0.00 1.00 4                               



Event Files: September 2022