Errors from USGS Location and Magnitude:
EQPROC = 41.0km (25.5mi)
HYPO2K = 33.6km (20.9mi)
Magnitude = 0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/02/27 05:25:32 38.827 -122.795 M3.4 3.3 6 km W of Cobb, CA
EQPROC Summary:
2915 2026Feb27 525 39.12 38.4840 -122.6195 8.00 0.01 51.0121.6 337 4
ADUB1 SHZ PN 01 2026Feb27 526 2.30 P ?3 148.5 0.01
B054 EHZ PB -- 2026Feb27 525 52.90 P D1 78.6 0.00
B058 EHZ PB -- 2026Feb27 526 8.95 P U3 208.4 -0.97
B057 EHZ PB -- 2026Feb27 525 48.44 P U0 51.0 0.00
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-02-27 0525 27.67 39 7.230 122W53.836 7.90 0.09 10.38 4.07 2.98 2.98E 7.90
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
4 4 124.7 Emb 349 7 3 4 0 4 - 3 1.70 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
2.98 3 1.70 E 1 0 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 -- A124.7 166 92 PU 48.44 20.77 20.78 0.00 -0.01 1.78 W 1.000 0.00 43.0 2.95 E
B054 PB EHZ -- A152.6 156 66 PD 1 52.90 25.23 25.20 0.00 0.03 1.33 W 1.000 0.00 45.0 1 3.03 E
ADUB1PN SHZ 01 A222.9 158 48 P 3 62.30 34.63 34.43 0.00 0.20 0.44 W 1.000 0.00 92.0 2 3.79 E
B058 PB EHZ -- A282.4 155 48 PU 3 68.95 41.28 41.70 0.00 -0.42 0.44 W 1.000 0.00 1.00 4