Errors from USGS Location and Magnitude:
EQPROC = 2.8km (1.7 mi)
HYPO2K = 11.6km (7.2 mi)
Magnitude = -0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2025/11/09 18:42:25 37.763 -121.945 M3.1 8.6 3 km ESE of San Ramon, CA
EQPROC Summary:
2829 2025Nov 9 1842 26.45 37.7588 -121.9759 1.75 0.09 22.7 64.0 222 5
GLFBZ SHZ PN 01 2025Nov 9 1842 33.88 P ?0 38.2 -0.00
ATZ SHZ PN 01 2025Nov 9 1842 42.38 P ?0 87.0 0.22
B054 EHZ PB -- 2025Nov 9 1842 31.26 P U0 22.7 -0.01
B058 EHZ PB -- 2025Nov 9 1842 44.63 P D3 112.1 -1.23
B057 EHZ PB -- 2025Nov 9 1842 37.10 P ?2 60.0 -0.48
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2025-11-09 1842 27.92 37 44.431 122W 4.266 1.72 0.02 1.88 8.54 3.16 3.16E 1.70
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 17.4 Emb 209 8 2 4 0 5 - 3 1.26 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
3.16 3 1.26 E 11 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 17.4 320 65 PU 31.26 3.34 3.32 0.00 0.02 1.14 W 1.000 0.00 61.0 2 3.06 E
GLFBZPN SHZ 01 A 33.6 193 65 P 33.88 5.96 5.95 0.00 0.01 1.14 W 1.000 0.00 66.0 1 3.23 E
B057 PB EHZ -- A 53.9 307 65 P 2 37.10 9.18 9.25 0.00 -0.07 0.57 W 1.000 0.00 59.0 3.18 E
ATZ PN SHZ 01 A 86.0 169 65 P 42.38 14.46 14.47 0.00 -0.01 1.14 W 1.000 0.00 19.0 4 2.12XE
B058 PB EHZ -- A113.1 157 65 PD 3 44.63 16.71 18.88 0.00 -2.17* 0.00 W 0.000 0.00 1.00 4