Errors from USGS Location and Magnitude:
EQPROC = 4.4km (2.7 mi)
HYPO2K = 1.0km (0.6 mi)
Magnitude = 0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2025/01/30 19:17:44 37.331 -121.693 M2.4 6.7 12 km ESE of Alum Rock, CA
EQPROC Summary:
2721 2025Jan30 1917 44.66 37.2944 -121.7113 12.00 0.06 22.7 58.1 203 5
MTUMZ SHZ PN 01 2025Jan30 1917 49.45 P U0 22.7 -0.00
ADUB1 SHZ PN 01 2025Jan30 1917 49.70 P U0 24.3 0.00
B054 EHZ PB -- 2025Jan30 1917 57.66 P U2 76.2 -0.09
B058 EHZ PB -- 2025Jan30 1917 54.96 P D1 56.2 0.14
B057 EHZ PB -- 2025Jan30 1918 2.41 P D1 111.0 -0.19
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2025-01-30 1917 44.36 37 20.416 121W41.962 12.61 0.12 4.94 12.26 2.34 2.34E 12.57
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 27.0 Emb 214 6 5 4 0 5 - 3 1.16 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
2.34 3 1.16 E 41 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
ADUB1PN SHZ 01 A 27.0 248 112 PU 49.70 5.34 5.20 0.00 0.14 1.15 W 0.999 0.00 40.0 2.75 E
MTUMZPN SHZ 01 A 27.2 221 112 PU 49.45 5.09 5.24 0.00 -0.15 1.15 W 0.999 0.00 17.0 1.92 E
B058 PB EHZ -- A 60.9 170 100 PD 1 54.96 10.60 10.53 0.00 0.07 0.87 W 0.999 0.00 17.0 2.03 E
B054 PB EHZ -- A 72.7 323 98 PU 2 57.66 13.30 12.41 0.00 0.89* 0.00 W 0.000 0.00 7.00 4 1.18XE
B057 PB EHZ -- A107.9 316 95 PD 1 62.41 18.05 18.11 0.00 -0.06 0.83 W 0.999 0.00 5.00 4 0.90XE