Peak Ground Motion Data (Distance Order) for
Cobb Earthquake of 21 Feb 2026, 09:22:56 PST, 4.2MW
38.8228N 122.7837W, 2.0 km depth Event Id: 75316827
CESMD Engineering Strong Motion Data Center
Table Last Updated: 2026-02-21 19:54:18
Network Statn Distance PGAv1 PGAv2 PGV PGD ---- Sa (g) ----- Struct
Id Name Nmbr Station Name N.Lat W.Long Epic Fault (g) (g) (cm/s) (cm) .3sec 1sec 3sec Apk(g)
NC NCSN GDXB Geysers 38.808 122.795 1.9( -- ) .125 .123 2.83 .2 .072 .006 .001 - -
NC NCSN GGPC Geyser Peak 38.769 122.847 8.1( -- ) .010 .010 .50 .0 .017 .003 .000 - -
NC NCSN GBG Boggs Mountain 38.814 122.683 8.8( -- ) .016 .016 .50 .0 .041 .001 .000 - -
NC NCSN GAXB Alexander Valley 38.711 122.757 12.7( -- ) .009 .009 .23 .0 .018 .001 .000 - -
NC NCSN GPM Pine Mountain 38.845 122.946 14.4( -- ) .004 .004 .14 .0 .011 .001 .000 - -
NC NCSN GRT Round Top Mountain 38.939 122.671 16.2( -- ) .004 .004 .23 .0 .008 .006 .000 - -
NC NCSN GCVB Cloverdale 38.769 123.015 20.9( -- ) .001 .001 .04 .0 .001 .001 .000 - -
NC NCSN NLB Lake Bordeaux 38.743 122.553 21.9( -- ) .002 .002 .06 .0 .003 .000 .000 - -
NC NCSN NHS Mt. St. Helena South 38.657 122.614 23.6( -- ) .001 .001 .12 .0 .003 .001 .000 - -
NP NSMP 1744 Healdsburg; Fire Station 38.616 122.872 24.2( -- ) .001 .001 .04 .0 .002 .000 .000 - -
BK BDSN PWOD Pepperwood Preserve 38.581 122.702 27.8( -- ) .003 .003 .08 .0 .004 .000 .000 - -
BK BDSN SKGS Skaggs Las Lomas 38.689 123.078 29.6( -- ) .003 .003 .08 .0 .003 .001 .000 - -
NC NCSN NWS Weeks Lake 38.630 122.401 39.6( -- ) .001 .001 .04 .0 .002 .000 .000 - -
NP NSMP 1764 St. Helena; Fire Station No. 17 38.507 122.471 44.4( -- ) .001 .001 .06 .0 .003 .000 .000 - -
NP NSMP 1835 Santa Rosa Firestation 7 38.442 122.607 45.0( -- ) .002 .002 .06 .0 .003 .000 .000 - -
BK BDSN OAKV Oakville Experimental Vineyard, Oakvill 38.431 122.411 54.3( -- ) .001 .001 .06 .0 .003 .000 .000 - -
NP NSMP 1848 Glen Ellen Fire Station, Glen Ellen 38.367 122.524 55.5( -- ) .001 .001 .04 .0 .003 .000 .000 - -
NP NSMP 1829 Sonoma; New Fire Station No. 1 38.290 122.461 65.5( -- ) .001 .001 .06 .0 .004 .000 .000 - -