Event Number 2523

M2.4 km WSW of Half Moon Bay, CA - 2023/09/10 01:40:44 37.448 -122.478 M2.4 9.0 5 km WSW of Half Moon Bay, CA at 2023/09/10 01:40:44 UTC / 2023/09/09 18:40:44 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 1.0km (0.6 mi)
HYPO2K = 0.9km (0.5 mi) Magnitude = 0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2023/09/10 01:40:44  37.448 -122.478  M2.4   9.0 5 km WSW of Half Moon Bay, CA

EQPROC Summary:

2523 2023Sep10  140 43.56  37.4427 -122.4870  1.64 0.03 22.5 59.5 222  5
LCGPZ SHZ PN 01 2023Sep10  140 48.37 P D0  22.5   0.00
ADUB1 SHZ PN 01 2023Sep10  140 53.60 P ?3  49.7   0.63
B054  EHZ PB -- 2023Sep10  140 53.51 P D0  52.9   0.00
B057  EHZ PB -- 2023Sep10  140 55.62 P U1  65.3   0.00
B058  EHZ PB -- 2023Sep10  141  2.29 P U2 107.3   0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2023-09-10  0140 44.49  37 26.468 122W28.044  1.63  0.04  1.29  8.85        2.19  2.19E    1.61
                                                                                          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  21.0  Emb  222   7   4   4   0   5      -                          4  2.19 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
                                                     2.19      4  2.19 E     13  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
 LCGPZPN SHZ 01 A 21.0  72  65  PD    48.37  3.88  3.91 0.00 -0.03  1.23  W  0.996 0.00 22.0   2.10 E                        
 ADUB1PN SHZ 01 A 48.2 116  65  P  3  53.60  9.11  8.34 0.00  0.77* 0.00  W  0.017 0.00 31.0   2.55 E                        
 B054 PB EHZ -- A 52.2  26  65  PD    53.51  9.02  8.98 0.00  0.04  1.23  W  0.992 0.00 23.0   2.27 E                        
 B057 PB EHZ -- A 65.6 353  65  PU 1  55.62 11.13 11.17 0.00 -0.04  0.92  W  0.996 0.00 21.0   2.20 E                        
 B058 PB EHZ -- A106.2 131  65  PU 2  62.29 17.80 17.76 0.00  0.04  0.62  W  0.998 0.00 1.00 4                               

Event Files: September 2023