Errors from USGS Location and Magnitude:
EQPROC = 1.2km (0.8 mi)
HYPO2K = 2.6km (1.6 mi)
Magnitude = -0.5
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2012/09/08 00:12:31 37.357 -121.719 M1.9 8.5 10 km ( 6 mi) E of Alum Rock, CA
EQPROC Summary:
101 2012Sep 8 12 31.81 37.3638 -121.7079 8.61 0.00 27.3 57.5 108 4
ADUB1 SHZ PN 01 2012Sep 8 12 37.17 P D2 27.3 0.00
COS SHZ PN 07 2012Sep 8 12 38.22 P ?3 33.6 0.00
B058 EHZ PB -- 2012Sep 8 12 43.29 P D2 63.7 0.00
B057 EHZ PB -- 2012Sep 8 12 49.45 P U3 105.6 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2012-09-08 0012 32.11 37 22.75 121 43.28 9.40 0.01 0.53 3.64 2.41 2.41E
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 27.2 Emb 109 5 3 4 0 4 1 0.00 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
2.41 1 0.00 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 27.2 238 106 PD 2 37.17 5.06 5.06 0.00 0.00 1.33 W 1.000 0.00 1.00 4
COS PN SHZ 07 A 33.9 64 102 P 3 38.22 6.11 6.12 0.00 -0.01 0.67 W 0.999 0.00 28.0 2.41 E
B058 PB EHZ -- A 65.5 168 96 PD 2 43.29 11.18 11.19 0.00 -0.01 1.33 W 1.000 0.00 1.00 4
B057 PB EHZ -- A103.5 315 94 PU 3 49.45 17.34 17.34 0.00 0.00 0.67 W 1.000 0.00 1.00 4