The document discusses different aspects of earthquakes including definitions, historical earthquakes, and survival tips. It describes the 1906 San Francisco earthquake as one of the most important historically, with a magnitude of 7.9 resulting in 700 deaths. The strongest earthquake mentioned was in Chile in 1960, measuring 9.5 with 3000-5700 deaths. The most tragic and recent earthquake discussed was in Haiti in 2010, with a magnitude of 8.0 and over 217,000 deaths. It also provides testimonies from relief workers about the devastating impact of the Haiti earthquake.

1. EARTHQUAKES By: Irantzu Nuin Denise Figueroa Adriana Zugasti

2. DEFINITION THE MOST EARTHQUAKES IN HISTORY THE MOST IMPORTANT IN THE ANTIQUITY(San Francisco) THE STRONGEST(Chile) THE MOST TRAGIC(Haiti) TESTIMONIES OF PEOPLE SURVIVE AN EARTHQUAKE PHOTOS INDEX

3. DEFINITION: An earthquake is a trembling or shaking movement of the Earth's surface. Earthquakes typically result from the movement of faults, quasi-planar zones of deformation within its uppermost layers.

4. THE MOST TRAGIC EARTHQUAKES IN HISTORY. The Richter magnitude scale , also known as the local magnitude scale, assigns a single number to quantify the amount of seismic energy released by an earthquake. It is a base-10 logarithmic scale. PLACE YEAR RITCHER China 1556 8 Portugal 1755 9 San Francisco, California 1906 7.9 Chile 1960 9.5 Alaska 1964 9.2 Haiti 2010 8, 5.9, 5.5 and 5.1

5. PLACE: California, San Francisco. DATE: April 18, 1906 RITCHER: 7.9 DEAD: 700 DURATION: 50S.

6. IMPORTANCE -FIRE -DAMAGE

7. THE STRONGEST EARTHQUAKE. PLACE: Chile DATE: May 22, 1960 RITCHER: 9.5 DEAD: 3000-5700 DURATION: 10min.

8. ALTHOUGH IT WAS HORRIFIC, IT DIDN´T CAUSE A LOT OF DAMAGE BECAUSE HOUSES WERE READY.

9. THE MOST TRAGIC AND THE MOST RECENT EARTHQUAKE. PLACE: Haiti DATE: January 12, 2010 RITCHER: 8, 5.9, 5.5 and 5.1 DEAD: 217.000 DURATION: 1min .

10. - The poorest country in America -3,000,000 people were affected - Damages cost more than 7.900 million of dollars -10 years to complete the rebuilding

11. Haiti was the most tragic earthquake so old the world decided to help it.

12. TESTIMONIES OF PEOPLE The director of a NOG: “we heard children’s voices in the rubble, but we couldn’t do anything”

13. The coordinator of an organization: “it’s really dangerous go out at night and, sometimes, in the day. People loot every places.”

14. Chris Rollings, Canadian director of the organization Clean Water for Haiti: “I’m going to have nightmares all my life”

15. SURVIVE IN AN EARTHQUAKE

16. You must not be under of something because they always fall down. You must be in a small place.

17. You should be in fetal position.

18. A house made of wood is safer because it does empty spaces .

19. If you are sleeping or watching TV, lie down to the floor or go next to the sofa, chair or big furniture .

20. Don’t be down the doorframe because it will break and you will die crushed

21. Don’t go downstairs because you don’t know when it can move and break .

22. Go to a place where you are in the external wall because you will be safer than when you are in the centre of the room. If you are in a car, go out and stay next to the car