Volcano and Earthquake Hazards in the Crater Lake Region, Oregon
Earthquakes
Ground shaking from earthquakes on local faults and on the distant Cascadia subduction zone poses a hazard to structures at Crater Lake. Earthquakes may trigger landslides and rock falls that may not only threaten roads and trails but also may cause destructive waves on Crater Lake itself. Below we consider the historic record and the geologic evidence for the types of earthquakes likely to affect the Crater Lake area.
