Errors from USGS Location and Magnitude:
EQPROC = 4.5km (2.8 mi)
HYPO2K = 4.7km (2.9 mi)
Magnitude = 0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/01/02 00:58:59 37.772 -121.948 M3.2 8.5 3 km ESE of San Ramon, CA
EQPROC Summary:
2877 2026Jan 2 59 0.67 37.7802 -121.9980 5.16 0.04 39.6 68.7 159 6
GLFBZ SHZ PN 01 2026Jan 2 59 8.04 P D0 39.6 0.00
RE9A7 EHZ AM 00 2026Jan 2 59 10.10 P D0 51.8 0.00
ADUB1 SHZ PN 01 2026Jan 2 59 11.53 P U0 59.2 0.17
ATZ SHZ PN 01 2026Jan 2 59 16.29 P ?0 89.5 0.00
B057 EHZ PB -- 2026Jan 2 59 11.00 P U0 57.1 0.00
B058 EHZ PB -- 2026Jan 2 59 18.82 PnD2 115.0 -1.07
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-01-02 0059 1.24 37 46.896 121W59.862 5.15 0.10 0.74 10.89 3.14 3.14E 5.15
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 39.8 Emb 158 6 5 5 0 6 - 6 2.25 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
3.14 6 2.25 E 3 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
GLFBZPN SHZ 01 A 39.8 200 94 PD 8.04 6.80 6.96 0.00 -0.16 1.00 W 0.899 0.00 60.0 3.18 E
RE9A7AM EHZ 00 A 51.7 97 93 PD 10.10 8.86 8.90 0.00 -0.04 1.00 W 0.997 0.00 247 2 4.56 E
B057 PB EHZ -- A 56.9 299 93 PU 11.00 9.76 9.74 0.00 0.02 1.00 W 0.998 0.00 49.0 3.00 E
ADUB1PN SHZ 01 A 59.3 178 93 PU 11.53 10.29 10.13 0.00 0.16 1.00 W 0.343 0.00 103 2 3.72 E
ATZ PN SHZ 01 A 89.6 174 92 P 16.29 15.05 15.05 0.00 0.00 1.00 W 0.761 0.00 163 4.20 E
B058 PB EHZ -- A115.1 161 91 PD 2 18.82 17.58 19.20 0.00 -1.62* 0.00 W 0.000 0.00 47.0 3.03 E