Errors from USGS Location and Magnitude:
EQPROC = 11.1km (6.9 mi)
HYPO2K = 6.7km (4.2 mi)
Magnitude = 0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/02/02 22:56:13 37.765 -121.937 M3.1 7.8 4 km ESE of San Ramon, CA
EQPROC Summary:
2901 2026Feb 2 2256 13.34 37.8527 -121.8757 8.49 0.03 28.6 71.5 240 6
GLFBZ SHZ PN 01 2026Feb 2 2256 22.68 P ?2 51.4 -0.07
ADUB1 SHZ PN 01 2026Feb 2 2256 25.55 P D1 67.9 0.04
ATZ SHZ PN 01 2026Feb 2 2256 29.71 P ?3 97.2 -0.08
B058 EHZ PB -- 2026Feb 2 2256 33.47 P ?3 119.9 0.67
B054 EHZ PB -- 2026Feb 2 2256 18.91 P U0 28.6 0.00
B057 EHZ PB -- 2026Feb 2 2256 24.83 P D0 63.9 -0.02
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-02-02 2256 14.63 37 49.530 121W56.163 3.30 0.02 2.95 8.11 2.88 2.88E 3.29
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 23.5 Emb 251 10 3 4 0 6 - 5 0.08 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
2.88 5 0.08 E 11 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
B054 PB EHZ -- A 23.5 280 93 PU 18.91 4.28 4.30 0.00 -0.02 1.23 W 1.000 0.00 53.0 2.96 E
GLFBZPN SHZ 01 A 46.3 205 91 P 2 22.68 8.05 8.01 0.00 0.04 0.62 W 0.999 0.00 30.0 2.52 E
B057 PB EHZ -- A 59.7 293 91 PD 24.83 10.20 10.19 0.00 0.01 1.23 W 1.000 0.00 43.0 2.88 E
ADUB1PN SHZ 01 A 64.3 184 91 PD 1 25.55 10.92 10.94 0.00 -0.02 0.92 W 0.999 0.00 118 2 3.86 E
ATZ PN SHZ 01 A 94.1 177 90 P 3 29.71 15.08 15.77 0.00 -0.69* 0.00 W 0.000 0.00 5.00 4 0.85XE
B058 PB EHZ -- A118.1 164 90 P 3 33.47 18.84 19.68 0.00 -0.84* 0.00 W 0.000 0.00 39.0 2.85 E