Errors from USGS Location and Magnitude:
EQPROC = 1.3km (0.8 mi)
HYPO2K = 0.5km (0.3 mi)
Magnitude = -0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2023/04/09 10:21:21 37.338 -121.698 M2.5 7.5 12km ESE of Alum Rock, CA
EQPROC Summary:
2438 2023Apr 9 1021 21.40 37.3268 -121.6946 11.50 0.07 26.3 56.5 207 6
MTUMZ SHZ PN 01 2023Apr 9 1021 26.58 P U0 26.3 -0.15
ADUB1 SHZ PN 01 2023Apr 9 1021 26.79 P U0 26.7 -0.00
ATZ SHZ PN 01 2023Apr 9 1021 29.51 P U0 42.7 0.09
B058 EHZ PB -- 2023Apr 9 1021 32.11 P D1 59.4 0.03
B057 EHZ PB -- 2023Apr 9 1021 39.02 P ?3 109.4 -0.17
B054 EHZ PB -- 2023Apr 9 1021 34.18 P D0 74.2 -0.05
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2023-04-09 1021 21.78 37 20.111 121W42.030 8.71 0.10 1.95 9.06 2.73 2.73E 8.68
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
6 6 26.6 Emb 205 6 5 5 0 6 - 5 0.52 E W W
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T DEPDAT NS ZT TYP
2.73 5 0.52 E 34 5 M CRH
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 26.6 249 105 PU 26.79 5.01 4.95 0.00 0.06 1.05 W 0.565 0.00 41.0 2.73 E
MTUMZPN SHZ 01 A 26.7 221 105 PU 26.58 4.80 4.96 0.00 -0.16 1.05 W 0.596 0.00 23.0 2.18 E
ATZ PN SHZ 01 A 43.4 205 99 PU 29.51 7.73 7.61 0.00 0.12 1.05 W 0.978 0.00 64.0 3.25 E
B058 PB EHZ -- A 60.4 169 96 PD 1 32.11 10.33 10.35 0.00 -0.02 0.79 W 0.878 0.00 27.0 2.43 E
B054 PB EHZ -- A 73.1 324 95 PD 34.18 12.40 12.40 0.00 0.00 1.05 W 0.980 0.00 27.0 2.45 E
B057 PB EHZ -- A108.3 316 93 P 3 39.02 17.24 18.11 0.00 -0.87* 0.00 W 0.000 0.00 11.0 4 1.62XE