Errors from USGS Location and Magnitude:
EQPROC = 19.2km (12.0mi)
HYPO2K = 14.6km (9.1 mi)
Magnitude = 0.3
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/01/11 04:21:07 37.772 -121.939 M2.8 7.3 4 km ESE of San Ramon, CA
EQPROC Summary:
2883 2026Jan11 421 9.97 37.7260 -122.1496 3.00 0.07 15.6 64.2 170 5
ADUB1 SHZ PN 01 2026Jan11 421 20.07 P ?1 55.3 0.00
ATZ SHZ PN 01 2026Jan11 421 25.55 P ?1 86.0 0.27
B057 EHZ PB -- 2026Jan11 421 19.13 P U1 49.7 0.00
B058 EHZ PB -- 2026Jan11 421 28.49 P ?3 114.5 -0.93
B054 EHZ PB -- 2026Jan11 421 13.29 P U0 15.5 -0.05
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-01-11 0421 10.53 37 45.104 122W 6.982 3.07 0.16 4.21 15.38 2.47 2.47E 3.06
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 14.1 Emb 198 10 2 4 0 5 - 3 1.05 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
2.47 3 1.05 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 14.1 329 95 PU 13.29 2.76 2.77 0.00 -0.01 1.23 W 0.999 0.00 35.0 2.50 E
B057 PB EHZ -- A 50.0 308 91 PU 1 19.13 8.60 8.60 0.00 0.00 0.92 W 1.000 0.00 27.0 1 2.42 E
ADUB1PN SHZ 01 A 57.3 167 91 P 1 20.07 9.54 9.79 0.00 -0.25 0.92 W 1.000 0.00 95.0 1 3.64 E
ATZ PN SHZ 01 A 88.0 167 90 P 1 25.55 15.02 14.77 0.00 0.25 0.92 W 0.999 0.00 7.00 4 1.16XE
B058 PB EHZ -- A115.9 155 90 P 3 28.49 17.96 19.31 0.00 -1.35* 0.00 W 0.000 0.00 1.00 4