Event Number 2911

M3.3 km SW of Ridgemark, CA - 2026/02/11 11:34:54 36.782 -121.412 M3.3 8.0 5 km SW of Ridgemark, CA at 2026/02/11 11:34:54 UTC / 2026/02/11 03:34:54 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 20.5km (12.8mi)
HYPO2K = 15.8km (9.8 mi) Magnitude = 0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2026/02/11 11:34:54  36.782 -121.412  M3.3   8.0 5 km SW of Ridgemark, CA

EQPROC Summary:

2911 2026Feb11 1134 52.76  36.5982 -121.4397  3.01 0.01 25.6 95.0 342  5
ATZ   SHZ PN 01 2026Feb11 1135  3.41 P ?0  58.5  -0.00
GLFBZ SHZ PN 01 2026Feb11 1135 12.02 P D0 113.1  -0.00
LCGPZ SHZ PN 01 2026Feb11 1135 13.45 P D3 122.4   0.25
B058  EHZ PB -- 2026Feb11 1134 57.83 P U0  25.6  -0.00
B054  EHZ PB -- 2026Feb11 1135 17.38 P D1 155.4  -0.04

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2026-02-11  1134 52.64  36 42.033 121W16.432  3.01  0.32 22.89 27.13        3.13  3.13E    3.00
                                                                                          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  29.5  Emb  324   5   4   5   0   5      -                          5  0.62 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
                                                     3.13      5  0.62 E      7  2  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
 B058 PB EHZ -- A 29.5 292  92  PU    57.83  5.19  5.27 0.00 -0.08  1.25  W  1.000 0.00 59.0   3.10 E                        
 ATZ  PN SHZ 01 A 63.7 300  90  P     63.41 10.77 10.85 0.00 -0.08  1.25  W  1.000 0.00  201 2 4.37 E                        
 GLFBZPN SHZ 01 A113.6 317  90  PD    72.02 19.38 18.94 0.00  0.44  1.25  W  0.941 0.00 53.0 1 3.14 E                        
 LCGPZPN SHZ 01 A123.3 317  90  PD 3  73.45 20.81 20.52 0.00  0.29  0.31  W  0.058 0.00 43.0   2.95 E                        
 B054 PB EHZ -- A152.7 328  90  PD 1  77.38 24.74 25.29 0.00 -0.55* 0.94  W  1.000 0.00 47.0   3.07 E                        

Event Files: Febuary 2026