Errors from USGS Location and Magnitude:
EQPROC = 7.8km (4.8 mi)
HYPO2K = 6.9km (4.3 mi)
Magnitude = -0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2020/12/18 01:11:37 37.713 -121.977 M2.4 10.4 4km WNW of Dublin, CA
EQPROC Summary:
1999 2020Dec18 111 37.67 37.7732 -121.9319 20.00 0.10 25.5 51.2 241 5
JCPZ SHZ PN 01 2020Dec18 111 45.41 P ?3 40.2 0.08
ADUB1 SHZ PN 01 2020Dec18 111 47.97 P U1 58.6 -0.00
MTUMZ SHZ PN 01 2020Dec18 111 49.59 P ?3 69.0 0.12
B054 EHZ PB -- 2020Dec18 111 43.22 P U0 25.5 -0.10
B057 EHZ PB -- 2020Dec18 111 48.84 PgD0 62.6 0.28
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2020-12-18 0111 37.75 37 45.836 121W55.881 20.00 0.04 3.69 9.04 2.75 2.75E 19.97
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 25.9 Emb 239 5 3 5 0 5 - 4 2.75 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
2.75 4 2.75 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
B054 PB EHZ -- A 25.9 295 90 PU 43.22 5.47 5.52 0.00 -0.05 1.54 W 0.994 0.00 27.0 2.47 E
JCPZ PN SHZ 01 A 39.7 241 90 P 3 45.41 7.66 7.58 0.00 0.08 0.38 W 0.927 0.00 44.0 3.02 E
ADUB1PN SHZ 01 A 57.5 185 90 PU 1 47.97 10.22 10.23 0.00 -0.01 1.15 W 0.875 0.00 34.0 2.79 E
B057 PB EHZ -- A 63.0 298 90 PD 48.84 11.09 11.05 0.00 0.04 1.54 W 0.997 0.00 19.0 1 2.24 E
MTUMZPN SHZ 01 A 67.9 177 90 P 3 49.59 11.84 11.78 0.00 0.06 0.38 W 0.204 0.00 5.00 4 0.96XE