Event Number 2578

M2.5 km SSE of Los Altos Hills, CA - 2023/12/24 12:20:34 37.368 -122.130 M2.5 4.7 2 km SSE of Los Altos Hills, CA at 2023/12/24 12:20:34 UTC / 2023/12/24 04:20:34 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 12.3km (7.6 mi)
HYPO2K = 13.2km (8.2 mi) Magnitude = 0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2023/12/24 12:20:34  37.368 -122.130  M2.5   4.7 2 km SSE of Los Altos Hills, CA

EQPROC Summary:

2578 2023Dec24 1220 34.09  37.3118 -122.2491 10.74 0.04 20.6 51.4 207  6
LCGPZ SHZ PN 01 2023Dec24 1220 38.47 P D0  20.6   0.00
ADUB1 SHZ PN 01 2023Dec24 1220 39.14 P U0  24.8   0.00
MTUMZ SHZ PN 01 2023Dec24 1220 40.92 P ?0  35.7   0.00
B054  EHZ PB -- 2023Dec24 1220 45.08 P D0  61.1   0.00
B058  EHZ PB -- 2023Dec24 1220 48.41 P U2  82.0   0.29
B057  EHZ PB -- 2023Dec24 1220 49.48 P ?2  84.3   1.02

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2023-12-24  1220 34.61  37 18.497 122W15.106  2.78  0.01  2.62  7.63        2.30  2.30E    2.75
                                                                                          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  21.0  Emb  229   7   4   5   0   6      -                          5  1.54 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
                                                     2.30      5  1.54 E     33  5  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   2  92  PD    38.47  3.86  3.88 0.00 -0.02  1.11  W  0.997 0.00 27.0   2.30 E                        
 ADUB1PN SHZ 01 A 25.0 105  91  PU    39.14  4.53  4.54 0.00 -0.01  1.11  W  0.833 0.00  130   3.84 E                        
 MTUMZPN SHZ 01 A 35.8 118  91  P     40.92  6.31  6.30 0.00  0.01  1.11  W  0.525 0.00 21.0   2.14 E                        
 B054 PB EHZ -- A 61.4   4  90  PD    45.08 10.47 10.46 0.00  0.01  1.11  W  0.995 0.00 25.0   2.36 E                        
 B058 PB EHZ -- A 82.2 133  90  PU 2  48.41 13.80 13.83 0.00 -0.03  0.56  W  0.648 0.00 9.00 4 1.40XE                        
 B057 PB EHZ -- A 84.5 341  90  P  2  49.48 14.87 14.20 0.00  0.67* 0.00  W  0.000 0.00 21.0 1 2.22 E                        

Event Files: December 2023