Errors from USGS Location and Magnitude:
EQPROC = 11.6km (7.2 mi)
HYPO2K = 8.0km (5.0 mi)
Magnitude = 0.0
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2023/09/23 22:02:35 37.432 -121.770 M2.7 10.4 9 km NE of Alum Rock, CA
EQPROC Summary:
2540 2023Sep23 2202 35.97 37.3822 -121.8849 17.29 0.01 25.5 56.6 170 6
MTUMZ SHZ PN 01 2023Sep23 2202 41.45 P U0 25.5 -0.00
LCGPZ SHZ PN 01 2023Sep23 2202 42.65 P ?0 33.9 -0.00
B054 EHZ PB -- 2023Sep23 2202 46.31 P D3 59.9 -0.12
B057 EHZ PB -- 2023Sep23 2202 51.12 P U2 93.5 -0.06
B058 EHZ PB -- 2023Sep23 2202 47.92 P D1 70.1 0.01
B073 EHZ PB -- 2023Sep23 2203 6.41 PgU3 202.5 -0.82
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2023-09-23 2202 35.60 37 24.098 121W51.100 19.61 0.06 4.87 2.14 2.70 2.70E 19.58
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 27.9 Emb 172 15 5 6 0 6 5 0.36 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
2.70 5 0.36 E 32 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
MTUMZPN SHZ 01 A 27.9 189 123 PU 41.45 5.85 5.87 0.00 -0.02 1.67 W 0.941 0.00 25.0 2.40 E
LCGPZPN SHZ 01 A 36.0 288 116 P 42.65 7.05 7.02 0.00 0.03 1.67 W 0.923 0.00 47.0 3.06 E
B054 PB EHZ -- A 59.4 330 66 PD 3 46.31 10.71 10.55 0.00 0.16 0.42 W 0.636 0.00 31.0 2.70 E
B058 PB EHZ -- A 71.0 160 66 PD 1 47.92 12.32 12.28 0.00 0.04 1.26 W 0.945 0.00 27.0 2.58 E
B057 PB EHZ -- A 93.7 319 66 PU 2 51.12 15.52 15.67 0.00 -0.15 0.84 W 0.519 0.00 29.0 2.67 E
B073 PB EHZ -- A203.2 142 48 PU 3 66.41 30.81 30.76 0.00 0.05 0.14 W 0.033 0.00 1.00 4