Errors from USGS Location and Magnitude:
EQPROC = 2.3km (1.4 mi)
HYPO2K = 2.3km (1.4 mi)
Magnitude = 0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2025/10/07 12:37:17 37.415 -121.763 M2.7 7.7 8 km NE of Alum Rock, CA
EQPROC Summary:
2814 2025Oct 7 1237 17.64 37.4325 -121.7767 5.44 0.03 33.1 59.7 100 7
GLFBZ SHZ PN 01 2025Oct 7 1237 23.90 P ?0 33.1 0.00
RE9A7 EHZ AM 00 2025Oct 7 1237 25.87 P ?0 44.7 0.00
ATZ SHZ PN 01 2025Oct 7 1237 27.04 P ?0 51.6 0.00
B054 EHZ PB -- 2025Oct 7 1237 29.05 P D3 60.4 0.52
B058 EHZ PB -- 2025Oct 7 1237 30.08 P U3 72.4 -0.48
B073 EHZ PB -- 2025Oct 7 1237 48.78 Pg?3 201.3 -0.77
B057 EHZ PB -- 2025Oct 7 1237 34.18 P D1 96.0 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2025-10-07 1237 18.09 37 26.116 121W46.875 7.20 0.05 0.58 6.60 2.59 2.59E 7.18
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 32.7 Emb 147 7 3 4 0 7 - 5 1.09 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
2.59 5 1.09 E 12 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 32.7 272 99 P 23.90 5.81 5.86 0.00 -0.05 1.07 W 0.999 0.00 34.0 2.59 E
RE9A7AM EHZ 00 A 44.8 45 96 P 25.87 7.78 7.80 0.00 -0.02 1.07 W 0.999 0.00 3.00 4 0.30XE
ATZ PN SHZ 01 A 51.8 192 95 P 27.04 8.95 8.93 0.00 0.02 1.07 W 0.999 0.00 99.0 3.68 E
B054 PB EHZ -- A 59.9 323 95 PD 3 29.05 10.96 10.24 0.00 0.72* 0.00 W 0.000 0.00 31.0 2.57 E
B058 PB EHZ -- A 72.8 165 94 PU 3 30.08 11.99 12.33 0.00 -0.34 0.00 W 0.000 0.00 27.0 2.45 E
B057 PB EHZ -- A 95.4 314 93 PD 1 34.18 16.09 16.00 0.00 0.09 0.80 W 0.999 0.00 29.0 2.54 E
B073 PB EHZ -- A202.5 144 48 P 3 48.78 30.69 32.00 0.00 -1.31* 0.00 W 0.000 0.00 1.00 4