Errors from USGS Location and Magnitude:
EQPROC = 6.2km (3.9 mi)
HYPO2K = 6.7km (4.2 mi)
Magnitude = 0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2021/01/07 11:44:06 37.428 -121.771 M3.1 9.0 8km NE of Alum Rock, CA
EQPROC Summary:
2020 2021Jan 7 1144 7.17 37.4092 -121.8372 14.16 0.00 28.0 36.1 143 4
GLFBZ SHZ PN 01 2021Jan 7 1144 12.92 P U0 28.0 -0.00
MTUMZ SHZ PN 01 2021Jan 7 1144 13.07 P U0 28.9 -0.00
LCGPZ SHZ PN 01 2021Jan 7 1144 14.33 P ?0 36.9 -0.00
RE9A7 EHZ AM 00 2021Jan 7 1144 16.29 P ?0 50.4 -0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2021-01-07 1144 7.44 37 24.647 121W50.018 14.16 0.02 0.61 6.68 2.90 2.90E 14.13
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 28.3 Emb 145 5 2 4 0 4 - 4 2.90 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
2.90 4 2.90 E 28 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
GLFBZPN SHZ 01 A 28.3 278 114 PU 12.92 5.48 5.51 0.00 -0.03 1.00 W 0.999 0.00 55.0 3.08 E
MTUMZPN SHZ 01 A 29.1 192 113 PU 13.07 5.63 5.63 0.00 0.00 1.00 W 1.000 0.00 37.0 2.71 E
LCGPZPN SHZ 01 A 37.3 285 108 P 14.33 6.89 6.86 0.00 0.03 1.00 W 1.000 0.00 44.0 2.92 E
RE9A7AM EHZ 00 A 50.0 47 104 P 16.29 8.85 8.85 0.00 -0.00 1.00 W 1.000 0.00 145 4.10 E