Earthquakes

By: Tayler and Caid

Earthquake info

- Earthquakes occur when there is sufficient stored elastic energy to make a fracture on a fault plane. Most tectonic plates have rough sides creating a sort of slip-stick behavior. Relative motion continues until the stored energy is released, causing an earthquake.


- The most popular places for earthquakes are on fault lines. California has many fault lines and earthquakes are not uncommon there.


- Earthquakes form around and on fault lines so it's only natural for fault lines to be the most common place for earthquakes.

Earthquake in Chile, 1960

Earthquake of Chili in 1960, it was the biggest earthquake in the 20th century. The earthquake caused massive damage and loss of life, it also caused tsunamis it was so large. The earthquake measured a 9.5 on the Richter scale. Approximately 1,655 people were killed, 3,000 were injured, 2,000,000 became homeless and there was $550 million in damages. Many cities were destroyed and the buildings became uninhabitable, the earthquake even reached Hawaii.

Honshu, Japan Earthquake 2011

This earthquake was on the coast of Japan and recorded in as a 9.0 magnitude. It occurred March 11, 2011. More than 15,000 people died, 5,000 went missing, and 131,000 were displaced. About 330,000 buildings were destroyed, 2,000 roads were damaged, 56 bridges, and 26 rail roads also were destroyed. The total clean up cost was estimated to be at about 309 billion US dollars. The earthquake was so massive it reached south of Crescent City, California and killed one person, also damaging boats and docks. The physical landscape was changed, many buildings were destroyed and some dams failed and flooded many places. The earthquake and following tsunamis ruined the Japanese people's morale.


Earthquake info

-Seismologists predict earthquakes by the movement of tectonic plates and the location of fault lines. Seismologists are better at predicting aftershocks than the actual earthquakes.


- The technology that is available right now is not very accurate and it is really hard to improve upon it as earthquakes are very hard to predict. It is very hard to rely on predictions because the earthquakes are either too far ahead to be 100% sure about the prediction, therefore if a whole city is evacuated then it's a waste of money and time, if the earthquake doesn't hit. If it's too soon then there is not enough time to evacuate.


- The economic impacts of an earthquake are massive. If the earthquake is massive the costs can be in the billions of dollars or even more. It can halt production of products and even cause meltdowns in nuclear facilities.


- The Red Cross and many charity organizations help countries that are devastated by earthquakes. They offer medical help to financial help and a lot more. Many people donate to charities to help countries that are hit by earthquakes.

Bibliography

"Earthquake." Wikipedia. Wikimedia Foundation, 21 Oct. 2013. Web. 23 Oct. 2013. <http://en.wikipedia.org/wiki/Earthquake>.


"The 10 Biggest Earthquakes in History." LiveScience.com. N.p., n.d. Web. 23 Oct. 2013. <http://www.livescience.com/30320-worlds-biggest-earthquakes-110412.html>.


"How Earthquakes Work." HowStuffWorks. N.p., n.d. Web. 25 Oct. 2013. <http://science.howstuffworks.com/nature/natural-disasters/earthquake7.htm>.


"Attempts to Predict Earthquakes May Do More Harm than Good." The Guardian. N.p., n.d. Web. 25 Oct. 2013. <http://www.theguardian.com/science/blog/2012/may/30/attempts-predict-earthquakes-harm-good>.