Event Number 2505

M2.2 km NNE of Millbrae, CA - 2023/08/09 12:55:07 37.619 -122.373 M2.2 11.6 3 km NNE of Millbrae, CA at 2023/08/09 12:55:07 UTC / 2023/08/09 05:55:07 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 3.4km (2.1 mi)
HYPO2K = 5.1km (3.2 mi) Magnitude = -0.1

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2023/08/09 12:55:07  37.619 -122.373  M2.2  11.6 3 km NNE of Millbrae, CA

EQPROC Summary:

2505 2023Aug 9 1255  8.34  37.6467 -122.3555 14.75 0.08 27.4 62.7 192  5
ADUB1 SHZ PN 01 2023Aug 9 1255 18.11 P D0  55.4  -0.04
MTUMZ SHZ PN 01 2023Aug 9 1255 20.33 P ?1  68.1   0.32
B054  EHZ PB -- 2023Aug 9 1255 14.07 P D0  27.4   0.02
B057  EHZ PB -- 2023Aug 9 1255 16.80 P ?0  46.2  -0.00
B058  EHZ PB -- 2023Aug 9 1255 26.73 P D2 116.3   0.08

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2023-08-09  1255  8.22  37 39.361 122W20.187 22.91  0.08  4.79  8.59        2.26  2.26E   22.87
                                                                                          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  25.7  Emb  190   7   3   4   0   5      -                          3  1.13 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
                                                     2.26      3  1.13 E     39  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
 B054 PB EHZ -- A 25.7  27 125  PD    14.07  5.85  5.84 0.00  0.01  1.16  W  0.999 0.00 21.0   2.26 E                        
 B057 PB EHZ -- A 45.9 335 105  P     16.80  8.58  8.58 0.00 -0.00  1.16  W  0.999 0.00 19.0   2.26 E                        
 ADUB1PN SHZ 01 A 55.2 145 100  PD    18.11  9.89  9.94 0.00 -0.05  1.16  W  0.999 0.00 25.0   2.53 E                        
 MTUMZPN SHZ 01 A 68.0 145  96  P  1  20.33 12.11 11.83 0.00  0.28  0.52  W  0.999 0.00 3.00 4 0.50XE                        
 B058 PB EHZ -- A116.3 144  92  PD 2  26.73 18.51 19.03 0.00 -0.52* 0.00  W  0.000 0.00 1.00 4                               

Event Files: August 2023