Event Number 2507

M4.4 km SW of Parkfield, California - 2023/08/10 19:17:18 35.813 -120.552 M4.4 6.0 14 km SW of Parkfield, California at 2023/08/10 19:17:18 UTC / 2023/08/10 12:17:18 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 20.6km (12.8mi)
HYPO2K = 27.3km (16.9mi) Magnitude = 0.4

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2023/08/10 19:17:18  35.813 -120.552  M4.4   6.0 14 km SW of Parkfield, California

EQPROC Summary:

2507 2023Aug10 1917 19.15  35.9843 -120.4646  3.50 0.03  4.2154.4 225  6
MTUMZ SHZ PN 01 2023Aug10 1917 47.02 P U3 181.3   0.03
ADUB1 SHZ PN 01 2023Aug10 1917 48.94 P ?3 193.9   0.34
B058  EHZ PB -- 2023Aug10 1917 40.13 P ?3 133.8  -0.82
B073  EHZ PB -- 2023Aug10 1917 20.51 P U0   4.2   0.00
B054  EHZ PB -- 2023Aug10 1917 56.85 PnD0 258.6   0.00
B057  EHZ PB -- 2023Aug10 1918  0.19 PnU3 293.1  -1.05

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2023-08-10  1917 18.20  36  2.530 120W26.963  5.16  0.02  7.15  2.76        4.04  4.04E    5.11
                                                                                          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  10.8  Emb  228   6   4   4   0   6      -                          6  3.66 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
                                                     4.04      6  3.66 E     53  1  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
 B073 PB EHZ -- A 10.8 191 109  PU    20.51  2.31  2.31 0.00  0.00  1.60  W  0.999 0.00  215   4.23 E                        
 B058 PB EHZ -- A131.8 310  91  P  3  40.13 21.93 21.91 0.00  0.02  0.40  W  1.000 0.00  127   4.01 E                        
 MTUMZPN SHZ 01 A178.9 315  66  PU 3  47.02 28.82 29.31 0.00 -0.49  0.00  W  0.000 0.00 85.0 1 3.67 E                        
 ADUB1PN SHZ 01 A191.4 315  48  P  3  48.94 30.74 30.87 0.00 -0.13  0.40  W  0.999 0.00  184   4.43 E                        
 B054 PB EHZ -- A255.0 323  48  PD    56.85 38.65 38.64 0.00  0.01  1.60  W  1.000 0.00  101   3.92 E                        
 B057 PB EHZ -- A289.8 321  48  PU 3  60.19 41.99 42.90 0.00 -0.91* 0.00  W  0.000 0.00 83.0 1 3.77 E                        

Event Files: August 2023