Errors from USGS Location and Magnitude:
EQPROC = 0.7km (0.5 mi)
HYPO2K = 2.1km (1.3 mi)
Magnitude = 0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2018/10/31 15:38:20 37.382 -121.740 M2.6 6.1 8km ENE of Alum Rock, CA
EQPROC Summary:
1644 2018Oct31 1538 20.42 37.3845 -121.7324 8.89 0.00 29.5 58.8 140 4
MTUMZ SHZ PN 01 2018Oct31 1538 26.16 P D0 29.5 -0.00
CMP SHZ PN 07 2018Oct31 1538 27.35 P U1 36.7 -0.01
B058 EHZ PB -- 2018Oct31 1538 32.33 P U0 66.4 -0.00
B057 EHZ PB -- 2018Oct31 1538 37.61 P ?1 102.5 -0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2018-10-31 1538 20.75 37 23.94 121W44.56 4.27 0.04 0.58 7.73 2.44 2.44E 4.20
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 30.5 Emb 141 5 3 4 0 4 - 3 0.09 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
2.44 3 0.09 E 64 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 30.5 207 94 PD 26.16 5.41 5.45 0.00 -0.04 1.14 W 0.999 0.00 27.0 2.35 E
CMP PN SHZ 07 A 37.9 96 93 PU 1 27.35 6.60 6.63 0.00 -0.03 0.86 W 1.000 0.00 15.0 4 1.83XE
B058 PB EHZ -- A 68.1 167 91 PU 32.33 11.58 11.54 0.00 0.04 1.14 W 1.000 0.00 27.0 2.44 E
B057 PB EHZ -- A100.6 315 91 P 1 37.61 16.86 16.84 0.00 0.02 0.86 W 1.000 0.00 29.0 2.55 E