Errors from USGS Location and Magnitude:
EQPROC = 9.3km (5.8 mi)
HYPO2K = 8.3km (5.2 mi)
Magnitude = -0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/01/30 18:33:09 37.750 -121.939 M3.4 6.7 5 km SE of San Ramon, CA
EQPROC Summary:
2894 2026Jan30 1833 10.92 37.7448 -122.0442 12.63 0.00 18.8 55.5 206 5
GLFBZ SHZ PN 01 2026Jan30 1833 17.66 P ?0 34.6 0.00
ADUB1 SHZ PN 01 2026Jan30 1833 20.94 P D0 55.6 0.00
B057 EHZ PB -- 2026Jan30 1833 20.96 P ?2 55.7 0.00
B054 EHZ PB -- 2026Jan30 1833 15.16 P U0 18.8 0.00
B058 EHZ PB -- 2026Jan30 1833 30.06 Pg?3 112.7 0.78
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-01-30 1833 11.26 37 44.982 122W 1.976 10.65 0.01 1.70 3.14 3.84 3.84E 10.63
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 19.1 Emb 209 5 2 5 0 5 5 0.39 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
3.84 5 0.39 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 19.1 310 116 PU 15.16 3.90 3.91 0.00 -0.01 1.33 W 0.999 0.00 81.0 3.35 E
GLFBZPN SHZ 01 A 35.4 198 104 P 17.66 6.40 6.41 0.00 -0.01 1.33 W 0.962 0.00 121 3.84 E
ADUB1PN SHZ 01 A 55.9 175 99 PD 20.94 9.68 9.68 0.00 0.00 1.33 W 0.838 0.00 173 4.23 E
B057 PB EHZ -- A 56.1 304 99 P 2 20.96 9.70 9.70 0.00 0.00 0.67 W 0.998 0.00 67.0 1 3.31 E
B058 PB EHZ -- A112.8 159 94 P 3 30.06 18.80 18.87 0.00 -0.07 0.33 W 0.200 0.00 61.0 3.29 E