Event Number 2256

M2.3 m NNE of Alum Rock, CA - 2022/03/24 11:33:00 37.399 -121.802 M2.3 -0.6 4km NNE of Alum Rock, CA at 2022/03/24 11:33:00 UTC / 2022/03/24 04:33:00 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 10.9km (6.8 mi)
HYPO2K = 24.2km (15.0mi) Magnitude = -0.1

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2022/03/24 11:33:00  37.399 -121.802  M2.3  -0.6 4km NNE of Alum Rock, CA

EQPROC Summary:

2256 2022Mar24 1133  2.60  37.3406 -121.9006 15.10 0.07 12.5 47.4 179  6
ADUB1 SHZ PN 01 2022Mar24 1133  6.26 P ?0  12.5   0.00
GLFBZ SHZ PN 01 2022Mar24 1133  7.98 P ?3  24.9   0.04
MTUMZ SHZ PN 01 2022Mar24 1133  7.82 P D2  20.8   0.48
B058  EHZ PB -- 2022Mar24 1133 13.99 P U2  66.4  -0.01
B057  EHZ PB -- 2022Mar24 1133 17.92 P U2  96.3  -0.40
B054  EHZ PB -- 2022Mar24 1133 13.56 P U0  63.5  -0.01

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2022-03-24  1133  2.19  37 17.377 122W 2.178 22.58  0.00  4.23  0.92        2.43  2.43E   22.55
                                                                                          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   6.8  Emb  188  10   4   4   0   6                                 4 -0.13 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
                                                     2.43      4 -0.13 E     33  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
 ADUB1PN SHZ 01 A  6.8 133 161  P      6.26  4.07  4.07 0.00  0.00  1.41  W  0.999 0.00 59.0 1 3.14 E                        
 MTUMZPN SHZ 01 A 19.5 140 133  PD 2   7.82  5.63  5.10 0.00  0.53* 0.00  W  0.000 0.00 15.0   1.90 E                        
 GLFBZPN SHZ 01 A 20.0 330 133  P  3   7.98  5.79  5.15 0.00  0.64* 0.00  W  0.000 0.00 23.0   2.31 E                        
 B054 PB EHZ -- A 64.9 348  96  PU    13.56 11.37 11.37 0.00 -0.00  1.41  W  0.999 0.00 23.0   2.46 E                        
 B058 PB EHZ -- A 67.8 143  95  PU 2  13.99 11.80 11.80 0.00 -0.00  0.70  W  0.999 0.00 1.00 4                               
 B057 PB EHZ -- A 94.3 331  92  PU 2  17.92 15.73 15.73 0.00  0.00  0.48  W  0.999 0.00 7.00 4 1.35XE                        

Event Files: March 2022