Errors from USGS Location and Magnitude:
EQPROC = 21.7km (13.5mi)
HYPO2K = 12.9km (8.0 mi)
Magnitude = -0.0
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/02/03 04:30:06 37.750 -121.937 M3.4 8.6 5 km SE of San Ramon, CA
EQPROC Summary:
2905 2026Feb 3 430 4.45 37.8773 -121.7498 3.00 0.05 39.7 73.4 250 5
GLFBZ SHZ PN 01 2026Feb 3 430 14.48 P U3 59.7 -0.82
ADUB1 SHZ PN 01 2026Feb 3 430 17.54 P ?3 72.9 0.00
B054 EHZ PB -- 2026Feb 3 430 11.92 P U0 39.7 -0.00
B057 EHZ PB -- 2026Feb 3 430 17.71 P U0 73.9 -0.00
B058 EHZ PB -- 2026Feb 3 430 25.33 PgD3 120.7 0.47
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-02-03 0430 6.05 37 49.563 121W49.553 3.00 0.08 2.80 10.78 3.44 3.44E 2.98
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 33.1 Emb 239 6 4 5 0 5 - 4 -0.09 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
3.44 4 -0.09 E 13 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 33.1 277 91 PU 11.92 5.87 5.86 0.00 0.01 1.82 W 0.996 0.00 69.0 3.27 E
GLFBZPN SHZ 01 A 51.1 215 91 PU 3 14.48 8.43 8.80 0.00 -0.37 0.45 W 0.803 0.00 111 2 3.79 E
ADUB1PN SHZ 01 A 65.7 193 90 P 3 17.54 11.49 11.16 0.00 0.33 0.45 W 0.345 0.00 144 4.05 E
B057 PB EHZ -- A 68.8 290 90 PU 17.71 11.66 11.67 0.00 -0.01 1.82 W 0.996 0.00 57.0 3.16 E
B058 PB EHZ -- A116.0 169 90 PD 3 25.33 19.28 19.33 0.00 -0.05 0.45 W 0.856 0.00 1.00 4