Errors from USGS Location and Magnitude:
EQPROC = 2.2km (1.4 mi)
HYPO2K = 3.0km (1.8 mi)
Magnitude = -0.3
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2018/12/21 04:27:59 37.432 -121.772 M2.0 9.4 9km NNE of Alum Rock, CA
EQPROC Summary:
1668 2018Dec21 427 59.03 37.4473 -121.7561 9.76 0.00 29.7 59.9 152 4
ADUB1 SHZ PN 01 2018Dec21 428 4.84 P ?0 29.7 0.00
CMP SHZ PN 07 2018Dec21 428 6.53 P U0 39.9 0.00
B057 EHZ PB -- 2018Dec21 428 15.23 P ?3 96.2 0.00
B058 EHZ PB -- 2018Dec21 428 11.93 P U2 73.6 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2018-12-21 0427 59.24 37 27.34 121W45.79 11.30 0.00 1.01 4.36 2.30 2.30E 11.28
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 30.1 Emb 152 5 2 4 0 4 2 0.17 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
2.30 2 0.17 E 24 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
ADUB1PN SHZ 01 A 30.1 220 108 P 64.84 5.60 5.60 0.00 0.00 1.45 W 0.999 0.00 21.0 2.13 E
CMP PN SHZ 07 A 40.9 105 103 PU 66.53 7.29 7.29 0.00 0.00 1.45 W 1.000 0.00 28.0 2.47 E
B058 PB EHZ -- A 74.6 167 97 PU 2 71.93 12.69 12.69 0.00 0.00 0.73 W 0.999 0.00 1.00 4
B057 PB EHZ -- A 95.0 313 95 P 3 75.23 15.99 15.99 0.00 0.00 0.36 W 0.999 0.00 3.00 4 0.37XE