Errors from USGS Location and Magnitude:
EQPROC = 55.1km (34.3mi)
HYPO2K = 27.5km (17.1mi)
Magnitude = -0.0
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2021/10/26 06:55:52 37.384 -121.739 M2.8 6.2 8km ENE of Alum Rock, CA
EQPROC Summary:
2188 2021Oct26 655 50.91 37.1029 -122.2514 29.50 0.11 28.8 55.7 265 6
GLFBZ SHZ PN 01 2021Oct26 655 58.76 P ?0 39.0 0.00
ADUB1 SHZ PN 01 2021Oct26 655 57.63 P U0 28.8 0.03
LCGPZ SHZ PN 01 2021Oct26 656 0.54 P U3 43.8 1.20
MTUMZ SHZ PN 01 2021Oct26 655 57.91 P U0 31.7 -0.01
B054 EHZ PB -- 2021Oct26 656 4.51 P U0 84.3 0.09
B057 EHZ PB -- 2021Oct26 656 9.44 Pg?1 106.4 1.11
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2021-10-26 0655 52.02 37 15.039 122W 0.455 33.14 0.09 7.55 4.26 2.84 2.84E 33.11
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 2.5 Emb 193 12 4 4 0 6 - 6 2.50 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
2.84 6 2.50 E 31 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
ADUB1PN SHZ 01 A 2.5 98 175 PU 57.63 5.61 5.49 0.00 0.12 1.06 W 0.999 0.00 62.0 3.31 E
MTUMZPN SHZ 01 A 14.6 137 154 PU 57.91 5.89 5.97 0.00 -0.08 1.06 W 1.000 0.00 25.0 2.51 E
GLFBZPN SHZ 01 A 25.0 330 139 P 58.76 6.74 6.81 0.00 -0.07 1.06 W 0.999 0.00 33.0 2.84 E
LCGPZPN SHZ 01 A 34.3 323 130 PU 3 60.54 8.52 7.79 0.00 0.73* 0.00 W 0.000 0.00 37.0 3.00 E
B054 PB EHZ -- A 69.7 346 109 PU 64.51 12.49 12.44 0.00 0.05 0.81 W 0.999 0.00 33.0 2.96 E
B057 PB EHZ -- A 99.3 331 102 P 1 69.44 17.42 16.69 0.00 0.73* 0.00 W 0.000 0.00 29.0 2.87 E