Errors from USGS Location and Magnitude:
EQPROC = 74.0km (46.0mi)
HYPO2K = 25.9km (16.1mi)
Magnitude = 0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/02/21 17:22:55 38.823 -122.791 M3.9 -0.9 6 km NNW of The Geysers, CA
EQPROC Summary:
2912 2026Feb21 1723 6.98 38.2092 -122.4608 1.50 0.02 22.2127.6 300 5
GLFBZ SHZ PN 01 2026Feb21 1723 23.12 P ?3 89.2 0.02
B054 EHZ PB -- 2026Feb21 1723 15.64 P D2 45.1 0.00
B057 EHZ PB -- 2026Feb21 1723 11.76 P U0 22.2 0.00
B058 EHZ PB -- 2026Feb21 1723 31.61 PnD3 174.8 -2.82
B073 EHZ PB -- 2026Feb21 1723 50.81 P ?2 306.6 -0.41
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-02-21 1722 59.35 38 41.029 122W33.856 1.22 0.02 3.65 7.29 3.50 3.50E 1.20
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 72.9 Emb 326 10 3 4 0 5 - 4 3.50 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
3.50 4 3.50 E 21 2 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
B057 PB EHZ -- A 72.9 181 35 PU 71.76 12.41 12.42 0.00 -0.01 1.78 W 1.000 0.00 71.0 3.38 E
B054 PB EHZ -- A 96.8 160 35 PD 2 75.64 16.29 16.31 0.00 -0.02 0.89 W 0.999 0.00 89.0 3.62 E
GLFBZPN SHZ 01 A142.2 165 35 P 3 83.12 23.77 23.70 0.00 0.07 0.45 W 0.999 0.00 183 1 4.37 E
B058 PB EHZ -- A226.4 157 26 PD 3 91.61 32.26 35.62 0.00 -3.36* 0.00 W 0.000 0.00 57.0 1 3.34 E
B073 PB EHZ -- A356.0 147 26 P 2 110.81 51.46 51.46 0.00 0.00 0.88 W 1.000 0.00 1.00 4