Errors from USGS Location and Magnitude:
EQPROC = 3.8km (2.3 mi)
HYPO2K = 3.0km (1.9 mi)
Magnitude = -0.6
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2012/09/16 07:25:33 37.431 -121.776 M2.1 8.9 8 km ( 5 mi) NNE of Alum Rock, CA
EQPROC Summary:
103 2012Sep16 725 33.26 37.4629 -121.7907 3.54 0.07 29.2 53.0 133 5
ADUB1 SHZ PN 01 2012Sep16 725 38.85 P U2 29.2 -0.00
COS SHZ PN 07 2012Sep16 725 40.19 P U0 37.1 -0.00
JCPZ SHZ PN 08 2012Sep16 725 42.21 P U0 49.0 0.00
B054 EHZ PB -- 2012Sep16 725 44.35 P D2 57.0 0.79
B057 EHZ PB -- 2012Sep16 725 49.49 P ?3 92.8 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2012-09-16 0725 33.69 37 27.37 121 47.27 3.57 0.02 0.83 8.54 2.75 2.75E
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 28.8 Emb 137 7 4 4 0 5 - 3 0.27 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
2.75 3 0.27 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 28.8 217 93 PU 2 38.85 5.16 5.15 0.00 0.01 0.73 W 1.000 0.00 9.00 1.28 E
COS PN SHZ 07 A 37.1 80 92 PU 40.19 6.50 6.50 0.00 0.00 1.45 W 0.999 0.00 39.0 2.75 E
JCPZ PN SHZ 08 A 49.6 288 91 PU 42.21 8.52 8.53 0.00 -0.01 1.45 W 1.000 0.00 50.0 3.02 E
B054 PB EHZ -- A 57.7 322 91 PD 2 44.35 10.66 9.85 0.00 0.81* 0.00 W 0.000 0.00 3.00 4 0.31XE
B057 PB EHZ -- A 93.4 314 90 P 3 49.49 15.80 15.67 0.00 0.13 0.36 W 1.000 0.00 3.00 4 0.35XE