The San Andreas Fault is a big and amazing Strike-Slip fault, one of the biggest in the world, is located in the Peninsule of California, it s a passive boundarie, formed by the North-American plate and Pacific plate, the Pacific plate move to the north (with California), and North-American plate move to the south, the friction with each other and the separation of join rocks, forms terrible earthquakes, that plague the area. In the future California will be an island and in 50 millions years it will be in Alaska.
Actually the earthquakes in California are not a problem, because the constructions are earthquake-proof.
The most importants modern earthquakes was:
1857 Fort Tejon earthquake: about 217 miles (349 km) were ruptured in central and southern California.Only two deaths were reported. The magnitude was about 7.9.
1906 San Francisco earthquake: about 267 miles (430 km) were ruptured in Northern California. The epicenter was near San Francisco. At least 3000 people died in the earthquake and subsequent fires. This time the magnitude was estimated to be 7.8.
BY: Marcos and Alex
2 comments:
You mean you are sending a new different essay??????
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