Errors from USGS Location and Magnitude:
EQPROC = 1.8km (1.1 mi)
HYPO2K = 1.4km (0.9 mi)
Magnitude = -0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2012/07/23 18:23:56 37.429 -121.772 M2.1 10.0 8 km ( 5 mi) NE of Alum Rock, CA
EQPROC Summary:
82 2012Jul23 1823 55.96 37.4332 -121.7915 4.63 0.05 26.5 56.4 123 5
ADUB1 SHZ PN 01 2012Jul23 1824 1.81 P ?3 26.5 0.71
COS SHZ PN 07 2012Jul23 1824 3.01 P U0 37.8 0.00
JCPZ SHZ PN 08 2012Jul23 1824 5.08 P D3 50.0 0.00
B057 EHZ PB -- 2012Jul23 1824 12.42 P ?0 95.0 0.00
B058 EHZ PB -- 2012Jul23 1824 8.95 P U2 72.8 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2012-07-23 1823 56.52 37 26.47 121 46.99 4.63 0.02 0.56 8.31 2.53 2.53E
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 37.0 Emb 125 7 3 4 0 5 - 1 0.00 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
2.53 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 27.7 220 95 P 3 61.81 5.29 4.99 0.00 0.30 0.00 W 0.000 0.00 1.00 4
COS PN SHZ 07 A 37.0 78 94 PU 63.01 6.49 6.49 0.00 0.00 1.82 W 0.999 0.00 31.0 2.53 E
JCPZ PN SHZ 08 A 50.5 290 93 PD 3 65.08 8.56 8.68 0.00 -0.12 0.45 W 0.999 0.00 5.00 4 0.80XE
B058 PB EHZ -- A 73.4 165 92 PU 2 68.95 12.43 12.42 0.00 0.01 0.91 W 1.000 0.00 1.00 4
B057 PB EHZ -- A 94.8 314 91 P 72.42 15.90 15.89 0.00 0.01 1.82 W 1.000 0.00 3.00 4 0.35XE