Errors from USGS Location and Magnitude:
EQPROC = 24.5km (15.2mi)
HYPO2K = 25.9km (16.1mi)
Magnitude = -0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
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2015/05/04 01:54:00 37.966 -122.031 M2.3 11.8 1km S of Concord, California
EQPROC Summary:
750 2015May 4 154 3.31 37.8727 -122.2831 1.51 0.15 7.5 40.2 152 5
JCPZ SHZ PN 08 2015May 4 154 9.97 P ?3 31.8 0.26
CBS SHZ PN 07 2015May 4 154 14.33 P U0 57.0 0.35
ADUB1 SHZ PN 01 2015May 4 154 16.37 P U2 74.5 -0.57
B054 EHZ PB -- 2015May 4 154 5.18 P D0 7.5 -0.04
B057 EHZ PB -- 2015May 4 154 9.45 P U1 30.3 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2015-05-04 0154 4.00 37 51.75 122W17.20 1.50 0.47 3.59 39.34 2.37 2.37E
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 7.7 Emb 144 6 4 5 0 5 - 5 0.46 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
2.37 5 0.46 E
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 7.7 91 35 PD 5.18 1.18 1.75 0.00 -0.57* 1.43 W 0.524 0.00 21.0 1.97 E
B057 PB EHZ -- A 30.6 307 35 PU 1 9.45 5.45 5.47 0.00 -0.02 1.07 W 0.999 0.00 17.0 1.91 E
JCPZ PN SHZ 08 A 30.6 187 35 P 3 9.97 5.97 5.47 0.00 0.50 0.36 W 0.956 0.00 71.0 3.29 E
CBS PN SHZ 07 A 57.0 94 35 PU 14.33 10.33 9.78 0.00 0.55* 1.43 W 0.523 0.00 47.0 2.96 E
ADUB1PN SHZ 01 A 73.4 158 35 PU 2 16.37 12.37 12.44 0.00 -0.07 0.71 W 0.996 0.00 25.0 2.37 E