Video Related To: Indian Ocean's 2012 mega-quake broke the records

The Cascade Subduction Zone and Earthquakes - Animation of the Cascadia region. As the Juan de Fuca plate is subducted beneath the continent, magma forms in the Cascade mountain range causing the expansion of the active volcanic arc. Deformation of rock around magma chambers can also cause earthquakes to occur. Uploaded by lcd5276 Cascadia mega event - This video clip illustrates how earthquake shaking from a fault rupture on the 600-mile-long Cascadia subduction zone might travel through Pacific Northwest. The case illustrated is a ~magnitude 9 earthquake from rupture of the entire Cascadia fault. uploaded by OR Dept of Geology & Min. Ind. OrphanTsunami PNW 1700 - www.iris.edu Orphan tsunami hits the coast of Japan inundating coastal villages, killing many. Because no earthquake was felt, it was called an "Orphan Tsunami". The 1700 Cascadia earthquake was a magnitude 8.7 to 9.2 megathrust earthquake that occurred in the Cascadia subduction zone in 1700. The earthquake involved the Juan de Fuca Plate underlying the Pacific Ocean, from mid-Vancouver Island in British Columbia, Canada, south along the Pacific Northwest coast as far as northern California, USA. The length of the fault rupture was about 1000 kilometers (620 miles) with an average slip of 20 meters (22 yards). Uploaded by enoquakes A compilation of 3 videos with appreciation and credit going to the above YouTubers. Music selection added by DoveDancing: Pollution 12" MixJah Warrior Singles 3Naph-Tali