Event Number 2804

M2.5 km NW of Woodside, CA - 2025/08/19 23:06:53 37.440 -122.268 M2.5 3.9 2 km NW of Woodside, CA at 2025/08/19 23:06:53 UTC / 2025/08/19 16:06:53 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 8.8km (5.5 mi)
HYPO2K = 7.8km (4.8 mi) Magnitude = -0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2025/08/19 23:06:53  37.440 -122.268  M2.5   3.9 2 km NW of Woodside, CA

EQPROC Summary:

2804 2025Aug19 2306 53.98  37.4988 -122.2008  6.54 0.00  3.5 43.2 173  4
LCGPZ SHZ PN 01 2025Aug19 2306 55.55 P ?0   3.5  -0.00
GLFBZ SHZ PN 01 2025Aug19 2306 56.04 P ?0   7.4   0.00
B057  EHZ PB -- 2025Aug19 2307  5.99 P ?0  67.0   0.00
B058  EHZ PB -- 2025Aug19 2307 10.29 P U2  95.0   0.01

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2025-08-19  2306 54.46  37 29.169 122W12.319  3.33  0.00  2.28  2.81        2.66  2.66E    3.32
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    4    4   3.4  Emb  160   9   1   4   0   4      #                          3  1.14 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
                                                     2.66      3  1.14 E      4  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  3.4 291 122  P     55.55  1.09  1.09 0.00  0.00  1.14  W  1.000 0.00 46.0   2.70 E                        
 GLFBZPN SHZ 01 A  6.7 133 105  P     56.04  1.58  1.58 0.00 -0.00  1.14  W  1.000 0.00 41.0 1 2.61 E                        
 B057 PB EHZ -- A 67.9 333  91  P     65.99 11.53 11.53 0.00 -0.00  1.14  W  1.000 0.00 25.0   2.37 E                        
 B058 PB EHZ -- A 94.3 143  90  PU 2  70.29 15.83 15.83 0.00  0.00  0.57  W  1.000 0.00 1.00 4                               

Event Files: August 2025