Peak Ground Motion Data (Distance Order) for Petrolia Earthquake of 20 Dec 2021, 19:26:39 PST, 3.8MW 40.4115N 124.2383W, 26.8 km depth Event Id: 73666801 CESMD Engineering Strong Motion Data Center Table Last Updated: 2021-12-23 11:00:56 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 KMPB Mount Pierce 40.417 124.121 10.0( -- ) .005 .005 .12 .0 .004 .001 .000 - - NP NSMP 1584 Ferndale; Bunker Hill, FAA Transmitter 40.498 124.294 10.7( -- ) .003 .003 .11 .0 .008 .001 .000 - - CE CGS 89462 Rio Dell - 101/Painter St Overpass Grnds40.504 124.101 15.5( -- ) .008 .008 .28 .0 .008 .001 .000 - - BK BDSN PETL Petrolia, CA USA 40.288 124.343 16.3( -- ) .007 .007 .17 .0 .001 .000 .000 - - NC NCSN KCO Cooskie Peak 40.257 124.266 17.3( -- ) .003 .003 .08 .0 .004 .001 .000 - - NP NSMP 1023 Ferndale; Fire Station 40.576 124.264 18.4( -- ) .003 .003 .11 .0 .004 .001 .000 - - NP NSMP 1586 Loleta; Fire Station 40.644 124.221 25.9( -- ) .001 .001 .06 .0 .003 .000 .000 - - NC NCSN KPR Pringle Ridge 40.220 124.057 26.3( -- ) .003 .003 .10 .0 .001 .000 .000 - - NP NSMP 1582 Eureka; College of the Redwoods 40.698 124.192 32.0( -- ) .002 .002 .11 .0 .006 .000 .000 - - NC NCSN KCR Chalk Rock 40.426 123.821 35.5( -- ) .001 .001 .03 .0 .001 .000 .000 - -