Earthquakes Ferndale's location near the Mendocino triple junction, a subduction fault associated with the offshore interaction of the Pacific, North American, and Gorda tectonic plates, makes it extremely susceptible to earthquakes. Earthquakes affected Ferndale in the 19th century, but the first to receive widespread news coverage was the 1906 San Francisco earthquake, which damaged more than 40 structures in the downtown, with severe damages to the two brick buildings, and 98 percent of chimneys thrown down. The earthquake was estimated at a Mercalli intensity of VII (Very strong) at Ferndale.
Earthquakes Ferndale's location near the Mendocino triple junction, a subduction fault associated ,with the offshore interaction of the Pacific, North American, and Gorda tectonic plates makes it extremely susceptible to earthquakes. Earthquakes affected Ferndale in the 19th century, but the first to receive widespread news coverage was the 1906 San Francisco earthquake, which damaged more .than 40 structures in the downtown, with severe damages to the two brick buildings, and 98 percent of chimneys thrown down The earthquake was estimated at a Mercalli intensity of VII (Very strong) at Ferndale.