Peak Ground Motion Data (Distance Order) for Petrolia Earthquake of 20 Dec 2021, 06:25:06 PST, 4.0MW 40.2882N 124.5377W, 20.3 km depth Event Id: 73666136 CESMD Engineering Strong Motion Data Center Table Last Updated: 2021-12-20 09:19:38 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) BK BDSN PETL Petrolia, CA USA 40.288 124.343 16.6( -- ) .003 .003 .11 .0 .001 .000 .000 - - NC NCSN KCO Cooskie Peak 40.257 124.266 23.4( -- ) .002 .002 .14 .0 .008 .002 .000 - - NP NSMP 1584 Ferndale; Bunker Hill, FAA Transmitter 40.498 124.294 31.1( -- ) .001 .001 .06 .0 .002 .001 .000 - - BK BDSN RBOW Rainbow Ridge, Humboldt, CA 40.335 124.111 36.6( -- ) .005 .005 .20 .0 .003 .000 .000 - - NC NCSN KMPB Mount Pierce 40.417 124.121 38.2( -- ) .008 .008 .26 .0 .009 .001 .000 - - NP NSMP 1023 Ferndale; Fire Station 40.576 124.264 39.5( -- ) .005 .005 .24 .0 .008 .002 .000 - - NC NCSN KPR Pringle Ridge 40.220 124.057 41.6( -- ) .006 .006 .21 .0 .002 .000 .000 - - NC NCSN KBU Burgh Ranch 40.246 123.853 58.4( -- ) .002 .002 .06 .0 .002 .000 .000 - - NC NCSN KCR Chalk Rock 40.426 123.821 62.8( -- ) .002 .002 .05 .0 .003 .000 .000 - - NP NSMP 1591 CA:Garberville;FS; Ground 40.105 123.790 66.8( -- ) .001 .001 .05 .0 .004 .000 .000 - -