Errors from USGS Location and Magnitude:
EQPROC = 6.7km (4.2 mi)
HYPO2K = 4.3km (2.7 mi)
Magnitude = 0.0
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2021/08/01 10:27:46 37.852 -121.887 M2.2 8.2 4km NNE of Blackhawk, CA
EQPROC Summary:
2135 2021Aug 1 1027 47.92 37.8709 -121.9591 13.68 0.08 21.2 65.2 248 5
ADUB1 SHZ PN 01 2021Aug 1 1027 59.85 P D1 69.3 -0.00
MTUMZ SHZ PN 01 2021Aug 1 1028 1.40 P D1 79.9 -0.00
ATZ SHZ PN 01 2021Aug 1 1028 4.53 P U0 99.3 0.34
B057 EHZ PB -- 2021Aug 1 1027 57.93 P ?2 56.3 -0.02
B054 EHZ PB -- 2021Aug 1 1027 52.54 P U0 21.3 -0.07
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2021-08-01 1027 47.79 37 52.502 121W55.967 13.70 0.04 6.36 4.20 2.18 2.18E 13.67
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
5 5 23.5 Emb 249 5 4 5 0 5 - 4 2.21 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
2.18 4 2.21 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
B054 PB EHZ -- A 23.5 267 117 PU 52.54 4.75 4.77 0.00 -0.02 1.25 W 0.990 0.00 25.0 2.29 E
B057 PB EHZ -- A 58.1 288 101 P 2 57.93 10.14 10.11 0.00 0.03 0.62 W 0.982 0.00 17.0 1 2.04 E
ADUB1PN SHZ 01 A 69.8 184 99 PD 1 59.85 12.06 11.98 0.00 0.08 0.94 W 0.840 0.00 21.0 2.25 E
MTUMZPN SHZ 01 A 80.2 177 98 PD 1 61.40 13.61 13.65 0.00 -0.04 0.94 W 0.674 0.00 5.00 4 0.88XE
ATZ PN SHZ 01 A 99.6 178 96 PU 64.53 16.74 16.77 0.00 -0.03 1.25 W 0.511 0.00 38.0 2.86 E