The earthquakes

Integrants:

Renato

Renzo

Sebastian

Andres

Section One

What are earthquakes?

• Although we still can't predict when an earthquake will happen, we have learned much about earthquakes as well as the Earth itself from studying them. We have learned how to pinpoint the locations of earthquakes, how to accurately measure their sizes, and how to build flexible structures that can withstand the strong shaking produced by earthquakes and protect our loved ones.

Where they often occur ? Why ?• Most of the earthquakes occurred

at subduction zones (where an oceanic plate is being subducted underneath either another oceanic plate or a continental plate). This is not the type of environment under which the Lewis thrust was active. The earthquakes in the Andes, the Himalayas, northern Africa, and throughout Iran occurred along faults that are similar to the Lewis thrust. There are also many active thrust faults in southern California, and the Coast and Transverse Ranges were uplifted along such faults. This figure indicates that not only are thrust faults physically possible, they are very common.

How likely is it that your area will experience an earthquake ?

• We have earthquakes because Lima is on the South American plate and thats why we have 30% of pocibilities to have an earthquake.

Section Two

How earthquakes affect peoples lives?

Of all the destructive phenomena of nature, the earthquake is most devastating. In just a moment of time entire cities have been leveled, courses of rivers have been changed and lives of thousands of people have been snuffed out.

An earthquake is a shaking of the ground caused by the breaking and shifting of subterranean rock, as far as 400 miles down, under tremendous pressure. The earth's surface is very mobile even though it appears solid and stable.

How volcanoes affect people lives ?

Volcanoes affect people in many ways, some are good, some are not. Some of the bad ways are that houses, buildings, roads, and fields can get covered with ash. As long as you can get the ash off (especially if it is wet), your house may not collapse, but often the people leave because of the ash and are not around to continually clean off their roofs. If the ashfall is really heavy it can make it impossible to breathe.

Lava flows are almost always too slow to run over people, but they can certainly run over houses, roads, and any other structures.

Interview

• Garth Rogers ed., The Fire has Jumped. Eyewitness accounts of the eruption and evacuation of Niuafo'ou, Tonga, Suva, Fiji: IPS,USP, 1986. is a wonderful collection of translated recountings by the people of Niuafo'ou (and others in Niufo'ou at the time) about the day Niufo'ou went to the sky.

• As we kept on going up, I felt that I could no longer hold onto our bag of clothes and carry Liku'one, so I threw our bag of clothes into the bush. As we went up, as time went on, I felt the heat and the scorching of the fire on my back, and as a result another fearful thought occurred to me, that I should throw away my poor little girl and go on myself and survive. Of course I couldn't see the fire behind me any more, but in my mind the fire was very close to getting us, and from the rumbling of the lava flow it seemed as if it would rush up and get us.

Section Three

How community residents and authorities can prepare for an

earthquake or volcanic eruption ?• We can prepare doing

quicly evacuations.

• Call to the scientist to know how the earthquake or an volcanic eruption occur.

• To have rescue teams.

Section Four

Conclusion

The earthquake occur mostly in the coast of the pacific ocean. The volcanos occur mostly in the oceans or in the Islands. The volcanos and the earthquakes are very dengeraus for human people and they kept as alot of materials basic for awer live. When lava get on the ocean, tha lava intoxicate oll the water. In Europe and in Asia is very dificult to occur an earthquake. Earthquakes occur by the tectonics plats.

THE END