Errors from USGS Location and Magnitude:
EQPROC = 0.9km (0.6 mi)
HYPO2K = 1.4km (0.9 mi)
Magnitude = -0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2013/04/20 00:30:39 37.455 -121.776 M3.2 6.7 11 km ( 7 mi) NNE of Alum Rock, CA
EQPROC Summary:
287 2013Apr20 30 39.20 37.4632 -121.7767 10.59 0.24 30.0 57.2 122 7
ADUB1 SHZ PN 01 2013Apr20 30 45.08 P U0 30.0 0.00
COS SHZ PN 07 2013Apr20 30 46.06 P D0 35.9 0.00
JCPZ SHZ PN 08 2013Apr20 30 47.94 P U0 50.2 -0.51
B054 EHZ PB -- 2013Apr20 30 50.59 P U0 57.8 0.87
B058 EHZ PB -- 2013Apr20 30 52.34 P U0 75.7 0.00
B057 EHZ PB -- 2013Apr20 30 54.96 P U0 93.7 0.00
B073 EHZ PB -- 2013Apr20 31 10.29 PgU3 204.1 -0.79
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG1 FMAG1 PMAG
2013-04-20 0030 39.29 37 26.56 121 46.75 18.96 0.44 1.91 2.57 3.56 3.56E
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
7 7 28.1 Emb 116 21 7 7 0 7 # 6 0.49 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
3.56 6 0.49 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 28.1 220 122 PU 45.08 5.79 5.83 0.00 -0.04 1.15 W 0.737 0.00 113 3.84 E
COS PN SHZ 07 A 36.6 78 115 PD 46.06 6.77 7.05 0.00 -0.28 1.15 W 0.943 0.00 164 4.26 E
JCPZ PN SHZ 08 A 50.8 289 109 PU 47.94 8.65 9.18 0.00 -0.53* 1.15 W 0.385 0.00 129 4.06 E
B054 PB EHZ -- A 59.4 322 106 PU 50.59 11.30 10.51 0.00 0.79* 1.15 W 0.400 0.00 57.0 3.28 E
B058 PB EHZ -- A 73.5 166 66 PU 52.34 13.05 12.69 0.00 0.36 1.15 W 0.843 0.00 43.0 3.02 E
B057 PB EHZ -- A 95.0 314 66 PU 54.96 15.67 15.89 0.00 -0.22 1.15 W 0.679 0.00 45.0 3.09 E
B073 PB EHZ -- A203.0 144 48 PU 3 70.29 31.00 30.80 0.00 0.20 0.11 W 0.009 0.00 3.00 4 0.60XE