The northern Cascadia section of the San Andreas Fault doesn’t receive as much press as the section near San Francisco. This fault is off the coast from Vancouver Island to Northern California. There is the possibility of a mega-quake of 9 lasting at least 5 minutes in this area. The intensity of this quake would cause a massive tsunami and many smaller aftershocks. There have already been four earthquakes dated by excavation of the soil in the nearby marsh. One quake caused a forest of trees to die off. This fault area is called a subduction zone because a denser oceanic plate is sliding under a less dense continental plate
This is not the fictional disaster film with Dwayne Johnson but it is a documentary released by the BBC. There is a lot of gloom and doom in this film but it does offer a lot of information to think about. The March 11, 2011, the Japanese tsunami that damaged their nuclear power plant resulted from a 9.0 magnitude earthquake producing a tsunami of 33 feet high. The epicenter of the earthquake was northeastern Japan. Debris from this event continues to wash up on the coast of North American beaches. 3 1/2* (I liked this film)
50 min, Doc directed by Nathan Williams and narrated by Jack Fortune.
Note: Amazon 2.7* out of 5* with 53 reviews.