Errors from USGS Location and Magnitude:
EQPROC = 11.0km (6.8 mi)
HYPO2K = 7.5km (4.7 mi)
Magnitude = -0.3
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2013/04/11 20:25:14 37.861 -121.790 M2.7 13.0 11 km ( 7 mi) SW of Brentwood, CA
EQPROC Summary:
279 2013Apr11 2025 16.42 37.8599 -121.9148 25.98 0.00 25.1 50.2 257 4
JCPZ SHZ PN 08 2013Apr11 2025 25.17 P U3 47.0 0.00
ADUB1 SHZ PN 01 2013Apr11 2025 27.88 P ?1 68.3 0.00
B057 EHZ PB -- 2013Apr11 2025 26.87 P U0 60.4 0.00
B054 EHZ PB -- 2013Apr11 2025 22.48 P U0 25.1 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2013-04-11 2025 15.46 37 52.40 121 52.61 31.86 0.00 5.57 1.77 3.02 3.02E
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 28.4 Emb 262 6 3 4 0 4 4 0.31 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
3.02 4 0.31 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 28.4 268 134 PU 22.48 7.02 7.02 0.00 0.00 1.33 W 0.999 0.00 33.0 2.84 E
JCPZ PN SHZ 08 A 50.5 232 116 PU 3 25.17 9.71 9.71 0.00 0.00 0.33 W 0.999 0.00 198 4.65 E
B057 PB EHZ -- A 62.9 286 110 PU 26.87 11.41 11.41 0.00 0.00 1.33 W 0.999 0.00 23.0 2.59 E
ADUB1PN SHZ 01 A 70.1 188 108 P 1 27.88 12.42 12.42 0.00 0.00 1.00 W 0.999 0.00 43.0 3.20 E