Errors from USGS Location and Magnitude:
EQPROC = 38.5km (23.9mi)
HYPO2K = 41.4km (25.7mi)
Magnitude = 0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/01/11 04:10:24 37.772 -121.938 M2.9 8.0 4 km ESE of San Ramon, CA
EQPROC Summary:
2882 2026Jan11 410 19.94 37.9949 -121.6031 1.50 0.31 35.1 84.4 240 7
RE9A7 EHZ AM 00 2026Jan11 410 26.91 P ?1 35.1 0.00
GLFBZ SHZ PN 01 2026Jan11 410 34.12 P ?3 77.9 -0.04
ADUB1 SHZ PN 01 2026Jan11 410 36.49 P D0 89.5 0.39
ATZ SHZ PN 01 2026Jan11 410 41.11 P U0 115.9 1.22
B054 EHZ PB -- 2026Jan11 410 30.23 P U0 54.7 0.00
B057 EHZ PB -- 2026Jan11 410 36.08 P U0 85.0 0.72
B058 EHZ PB -- 2026Jan11 410 43.74 Pg?3 132.8 1.31
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-01-11 0410 20.93 38 0.864 121W34.241 1.49 0.42 5.25 35.09 2.79 2.79E 1.48
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
7 7 35.8 Emb 245 6 4 7 0 7 - 5 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
2.79 5 0.09 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
RE9A7AM EHZ 00 A 35.8 157 35 P 1 26.91 5.98 6.33 0.00 -0.35 1.00 W 0.994 0.00 3.00 4 0.27XE
B054 PB EHZ -- A 57.9 253 35 PU 30.23 9.30 9.92 0.00 -0.62* 1.33 W 0.666 0.00 43.0 2.88 E
GLFBZPN SHZ 01 A 81.3 220 35 P 3 34.12 13.19 13.73 0.00 -0.54* 0.33 W 0.064 0.00 38.0 2.79 E
B057 PB EHZ -- A 87.4 272 35 PU 36.08 15.15 14.71 0.00 0.44 1.33 W 0.880 0.00 37.0 2.77 E
ADUB1PN SHZ 01 A 92.5 204 35 PD 36.49 15.56 15.55 0.00 0.01 1.33 W 0.528 0.00 87.0 3.60 E
ATZ PN SHZ 01 A118.6 195 35 PU 41.11 20.18 19.79 0.00 0.39 1.33 W 0.752 0.00 130 2 4.01 E
B058 PB EHZ -- A134.8 181 35 P 3 43.74 22.81 22.43 0.00 0.38 0.33 W 0.113 0.00 1.00 4