Errors from USGS Location and Magnitude:
EQPROC = 13.4km (8.3 mi)
HYPO2K = 26.3km (16.4mi)
Magnitude = -0.1
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/03/14 17:39:56 37.363 -122.282 M2.6 3.3 5 km WSW of Portola Valley, CA
EQPROC Summary:
2928 2026Mar14 1739 55.98 37.2966 -122.4078 8.46 0.44 38.1 75.3 223 5
ADUB1 SHZ PN 01 2026Mar14 1740 3.08 P ?0 38.1 -0.07
RE9A7 EHZ AM 00 2026Mar14 1740 14.68 P ?1 99.1 1.97
B057 EHZ PB -- 2026Mar14 1740 10.27 P ?1 82.4 0.00
B054 EHZ PB -- 2026Mar14 1740 7.00 P ?3 65.3 -0.72
B058 EHZ PB -- 2026Mar14 1740 11.63 P U1 91.5 0.02
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-03-14 1739 55.31 37 13.152 122W31.092 4.23 0.46 5.46 36.48 2.70 2.70E 4.21
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 47.8 Emb 240 13 1 4 0 5 - 3 1.35 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
2.70 3 1.35 E 15 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 47.8 86 92 P 63.08 7.77 8.26 0.00 -0.49 1.52 W 0.999 0.00 47.0 2.95 E
B054 PB EHZ -- A 76.5 21 91 P 3 67.00 11.69 12.92 0.00 -1.23* 0.05 W 0.001 0.00 27.0 2.45 E
B057 PB EHZ -- A 89.8 358 91 P 1 70.27 14.96 15.08 0.00 -0.12 1.14 W 0.999 0.00 23.0 2.31 E
B058 PB EHZ -- A 95.6 118 91 PU 1 71.63 16.32 16.02 0.00 0.30 1.14 W 0.999 0.00 3.00 4 0.35XE
RE9A7AM EHZ 00 A111.9 60 91 P 1 74.68 19.37 18.69 0.00 0.68* 1.14 W 0.999 0.00 3.00 4 0.37XE