Errors from USGS Location and Magnitude:
EQPROC = 1.6km (1.0 mi)
HYPO2K = 0.5km (0.3 mi)
Magnitude = 0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2012/12/22 16:31:11 37.383 -121.739 M2.4 7.5 8 km ( 5 mi) ENE of Alum Rock, CA
EQPROC Summary:
184 2012Dec22 1631 11.44 37.3688 -121.7400 10.29 0.00 25.1 65.3 204 4
ADUB1 SHZ PN 01 2012Dec22 1631 16.52 P D0 25.1 0.00
B057 EHZ PB -- 2012Dec22 1631 28.59 P ?0 103.3 0.00
B054 EHZ PB -- 2012Dec22 1631 23.48 P D3 68.0 0.00
B058 EHZ PB -- 2012Dec22 1631 23.01 P U1 64.8 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2012-12-22 1631 11.61 37 23.19 121 44.70 10.28 0.09 3.21 10.09 2.20 2.20E
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 25.9 Emb 204 8 3 4 0 4 - 3 0.09 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
2.20 3 0.09 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
ADUB1PN SHZ 01 A 25.9 234 108 PD 16.52 4.91 4.90 0.00 0.01 1.33 W 1.000 0.00 29.0 2.40 E
B054 PB EHZ -- A 66.1 323 97 PD 3 23.48 11.87 11.30 0.00 0.57* 0.33 W 1.000 0.00 21.0 2.20 E
B058 PB EHZ -- A 66.8 167 97 PU 1 23.01 11.40 11.40 0.00 0.00 1.00 W 1.000 0.00 19.0 2.11 E
B057 PB EHZ -- A101.5 315 94 P 28.59 16.98 17.02 0.00 -0.04 1.33 W 0.999 0.00 9.00 4 1.42XE