This earthquake occurred approximately 35 km WNW of Ferndale, CA in a deformation zone of the southernmost Juan de Fuca plate that is commonly referred to as the Gorda plate. The earthquake's epicenter is northwest of the Mendocino Triple Junction, which is formed by the intersection of the Mendocino fracture zone, the San Andreas fault and the Cascadia subduction zone. (USGS National Earthquake Information Center)
University of Portland/IRIS Earthquake Notice (pdf)
12 slide Teachable Moment Powerpoint (zipped)
Converted powerpoint (pdf)
