Errors from USGS Location and Magnitude:
EQPROC = 0.8km (0.5 mi)
HYPO2K = 7.7km (4.8 mi)
Magnitude = 0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2023/10/28 03:21:13 37.343 -121.702 M2.9 7.8 11 km ESE of Alum Rock, CA
EQPROC Summary:
2559 2023Oct28 321 13.58 37.3360 -121.7038 10.65 0.00 26.5 91.4 182 5
MTUMZ SHZ PN 01 2023Oct28 321 18.90 P U0 26.5 -0.00
B058 EHZ PB -- 2023Oct28 321 24.50 P D0 60.6 -0.00
B054 EHZ PB -- 2023Oct28 321 26.29 P D3 72.8 0.00
B057 EHZ PB -- 2023Oct28 321 31.32 P ?3 108.1 0.02
B073 EHZ PB -- 2023Oct28 321 43.06 PgU3 188.8 -0.16
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2023-10-28 0321 13.95 37 18.627 121W46.975 20.35 0.03 5.07 4.14 2.77 2.77E 20.29
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 20.2 Emb 171 9 4 5 0 5 - 4 2.77 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
2.77 4 2.77 E 52 3 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
MTUMZPN SHZ 01 A 20.2 211 128 PU 18.90 4.95 4.96 0.00 -0.01 1.82 W 0.982 0.00 38.0 2.77 E
B058 PB EHZ -- A 59.5 162 91 PD 24.50 10.55 10.53 0.00 0.02 1.82 W 0.954 0.00 33.0 2.77 E
B054 PB EHZ -- A 71.2 330 90 PD 3 26.29 12.34 12.29 0.00 0.05 0.45 W 0.791 0.00 35.0 2.84 E
B057 PB EHZ -- A105.3 320 90 P 3 31.32 17.37 17.38 0.00 -0.01 0.45 W 0.556 0.00 37.0 2.93 E
B073 PB EHZ -- A191.5 141 54 PU 3 43.06 29.11 29.26 0.00 -0.15 0.45 W 0.713 0.00 1.00 4