"What to Do Before an Earthquake!" Safer Coastlines RSS. N.p., 05 Oct. 2011. Web. 09 Mar. 2015.

<http://safercoastlines.com/2011/10/what-to-do-before-an-earthquake/>.

Questions

• which earthquake was died more people?

• when was recently earthquake in American?

• what is the earthquake effect?

Causes of earthquake

earthquakes are caused by faulting, the rock sudden movement.("Reply to ASK-AN-EARTH-SCIENTIST." The Causes of Earthquakes. N.p., n.d. Web. 07 Mar. 2015.

<https://www.soest.hawaii.edu/GG/ASK/earthquakes.html>.)

"唐山大地震的真实惨烈场景 [18P]." - 历史风云图区 . N.p., n.d. Web. 09 Mar. 2015. <http://bbs.tiexue.net/post_6283593_1.html>.

• P-waves That are longitudinal in nature, it's faster than other waves.

• S-waves That are transverse in nature, it's the faster-moving P-waves and displace the ground perpendicular to the direction of propagation.

• L-waves It's similar to the S-wave, but it's more save than that.

Seismic Waves

"P Wave." P Wave. N.p., n.d. Web. 09 Mar. 2015. <http://www.daviddarling.info/encyclopedia/P/P_wave.html>.

"Types Of Earthquake Waves." Types Of Earthquake Waves. N.p., n.d. Web. 09 Mar. 2015. <http://allshookup.org/quakes/wavetype.htm>.

"Love Wave." Wikipedia. Wikimedia Foundation, n.d. Web. 09 Mar. 2015. <http://en.wikipedia.org/wiki/Love_wave>.

Tsunami

"Japan Earthquake & Tsunami 2011 - Shocking Video - Killing 18000 People." YouTube. YouTube, n.d. Web. 08 Mar. 2015. <https://www.youtube.com/watch?v=tPQ5iTcnXW0>.

Tsunami is cause the earthquake was occurred in the sea. the water are come to land.

Vocabulary

• faulting 断层 chasm in the land.

• Seismic 地震 same to earthquake.

• Waves 波浪 when the earthquake are happen, it will make.

"Strike-slip Fault | Geology." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 09 Mar. 2015. <http://www.britannica.com/EBchecked/topic/569119/strike-slip-fault>.

"Earthquake." Wikipedia. Wikimedia Foundation, n.d. Web. 09 Mar. 2015. <http://en.wikipedia.org/wiki/Earthquake>.

"Wave." Wikipedia. Wikimedia Foundation, n.d. Web. 08 Mar. 2015. <http://en.wikipedia.org/wiki/Wave>.

Answers

• July 1201, an earthquake occurred in the eastern Mediterranean resulting in 110 millions deaths.

• 2014 California earthquake off the West Bank: 7.0 earthquake occurred.

• Earthquake is very dangrous it can effect many people die and brooken the house.

Summary

• The earthquake is cause the faulting, and the rock movement. When the earthquake are happen, it will make the seismic waves, seismic waves have 3type of them, that are P-wave, S-wave and L-wave. Earthquake can also effect the tsunami, tsunami is when earthquake are happen under the sea. Earthquake and tsunami are both dangrous.