Cascadia Subduction Zone

Research shows that there is a pattern of quakes that range from 8. 7 to 9. 2 that occur every 240 years or so, and we know this because Oregon State University has done a 13 year study on the margin stretching from southern Vancouver Island to the Oregon-California border. The last mega-earthquake in the … Read more

Essay On Chilean Earthquake

The largest earthquake recorded in the 20th century is the 1960 Valdivia earthquake, also known as the Great Chilean earthquake which occurred on May 22, 1960 and hit approximately 100 miles off the coast of Chile, which is parallel to the city of Valdivia. With a rate of 9. 5 on the moment magnitude scale, … Read more