Errors from USGS Location and Magnitude:
EQPROC = 29.6km (18.4mi)
HYPO2K = 24.9km (15.5mi)
Magnitude = 0.6
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2023/10/20 21:11:58 37.389 -121.739 M2.7 5.7 8 km ENE of Alum Rock, CA
EQPROC Summary:
2557 2023Oct20 2111 59.05 37.3180 -122.0615 1.50 0.09 23.3 61.7 187 4
MTUMZ SHZ PN 01 2023Oct20 2112 4.02 P D0 23.3 0.00
B058 EHZ PB -- 2023Oct20 2112 10.18 P D3 71.5 -2.01
B054 EHZ PB -- 2023Oct20 2112 10.48 P ?1 61.5 0.00
B057 EHZ PB -- 2023Oct20 2112 15.36 P ?2 90.5 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2023-10-20 2111 59.93 37 19.450 122W 0.817 1.48 0.30 9.57 25.59 2.13 2.13E 1.45
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
4 4 21.6 Emb 178 7 2 4 0 4 - 3 1.06 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
2.13 3 1.06 E 39 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
MTUMZPN SHZ 01 A 21.6 151 35 PD 64.02 4.09 4.02 0.00 0.07 1.60 W 0.999 0.00 21.0 2.06 E
B054 PB EHZ -- A 61.7 345 35 P 1 70.48 10.55 10.54 0.00 0.01 1.20 W 1.000 0.00 27.0 2.44 E
B058 PB EHZ -- A 69.8 146 35 PD 3 70.18 10.25 11.86 0.00 -1.61* 0.40 W 1.000 0.00 21.0 2.20 E
B057 PB EHZ -- A 92.0 329 35 P 2 75.36 15.43 15.46 0.00 -0.03 0.80 W 1.000 0.00 11.0 4 1.60XE