Errors from USGS Location and Magnitude:
EQPROC = 4.5km (2.8 mi)
HYPO2K = 3.9km (2.4 mi)
Magnitude = -0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2023/04/09 09:19:51 37.334 -121.698 M1.7 7.6 12km ESE of Alum Rock, CA
EQPROC Summary:
2437 2023Apr 9 919 52.02 37.3071 -121.7367 13.75 0.10 22.5 60.4 200 5
ADUB1 SHZ PN 01 2023Apr 9 919 56.90 P D0 22.5 -0.00
ATZ SHZ PN 01 2023Apr 9 919 59.99 P ?2 39.2 0.43
B058 EHZ PB -- 2023Apr 9 920 2.24 P ?3 58.1 -0.06
B057 EHZ PB -- 2023Apr 9 920 9.63 P U3 108.4 0.19
B054 EHZ PB -- 2023Apr 9 920 4.88 P U3 73.8 0.28
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2023-04-09 0919 51.94 37 21.643 121W43.270 10.96 0.25 5.52 15.76 1.77 1.77E 10.95
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 26.2 Emb 205 7 3 5 0 5 - 2 1.76 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
1.77 2 1.76 E 16 4 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 26.2 242 110 PD 56.90 4.96 4.98 0.00 -0.02 2.22 W 0.994 0.00 15.0 1.77 E
ATZ PN SHZ 01 A 45.3 201 101 P 2 59.99 8.05 7.98 0.00 0.07 1.11 W 0.908 0.00 48.0 2.99 E
B058 PB EHZ -- A 63.5 168 98 P 3 62.24 10.30 10.90 0.00 -0.60* 0.56 W 0.879 0.00 1.00 4
B054 PB EHZ -- A 69.7 323 97 PU 3 64.88 12.94 11.90 0.00 1.04* 0.56 W 0.578 0.00 1.00 4
B057 PB EHZ -- A105.0 316 94 PU 3 69.63 17.69 17.60 0.00 0.09 0.56 W 0.639 0.00 1.00 4