EARTHQUAKE WEBQUEST An earthquake (also known as tremors and temblors) is the result of a sudden release of energy in the Earth'scrust that creates seismic waves. Earthquakes are recorded with a seismometer, also known as a seismograph. The moment magnitude of an earthquake is conventionally reported, or the related and mostly obsoleteRichter magnitude, with magnitude 3 or lower earthquakes being mostly imperceptible and magnitude 7 causing serious damage over large areas. Intensity of shaking is measured on the modified Mercalli scale. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacing the ground. When a large earthquake epicenter is located offshore, the seabed sometimes suffers sufficient displacement to cause atsunami. The shaking in earthquakes can also trigger landslides and occasionally volcanic activity. In its most generic sense, the word earthquake is used to describe any seismic event—whether a naturalphenomenonor an event caused by humans—that generates seismic waves. Earthquakes are caused mostly by rupture of geological faults, but also by volcanic activity, landslides, mine blasts, and nuclear experiments. An earthquake's point of initial rupture is called its focus or hypocenter. The term epicenter refers to the point at ground level directly above this. Reuters News Service http://www.reuters.com/article/worldNews/idUSTRE4B10X520081202 1. How deep was the earthquake which struck Taiwan on December 1, 2008? 2. When was the most recent, worse earthquake to strike Taiwan? Describe it. USGS Earthquake Hazards Program http://earthquake.usgs.gov/ Use the USGS Latest Earthquake Map to answer the following questions. 1. When was the most recent earthquake and what was its magnitude? 2. Where was the most recent earthquake closest to Washington, DC? Give some details. 3. Where was the most recent earthquake closest to Alabama? Use google maps to determine the distance from Hartford to the epicenter of the earthquake? USGS Archives http://earthquake.usgs.gov/eqcenter/eqarchives/ Find Earhtquake information by state, and go to Pennsylvania. 1. When and where was the most recent earth quake in Pennsylvania? 2. Go to Historic information and describe the type of damage due to earthquakes typically seen in Pennnsylvania. USGS Earthquake Hazards Program- North American Map http://earthquake.usgs.gov/eqcenter/recenteqsww/Maps/region/N_America.php 1. When and where was the strongest, recent earthquake in the US? 2. What was its magnitude? 3. Describe the earthquake that occurred in the Mid Atlantic on November 28 th. FEMA Earthquake http://www.fema.gov/hazard/earthquake/index.shtm 1. Before an earthquake what kind of shoes does FEMA recommend you purchase? 2. During an earthquake should you stay indoors or outdoors? Why? National Geographic: Tsunami 2004 http://news.nationalgeographic.com/news/2004/12/1227_041226_tsunami.html 1. How large was the earthquake that caused the 2004 Tsunami in the Indian Ocean? 2. How tall were the largest waves that struck the coastlines around the earthquakes epicenter? 3. What type of plate boundary and what kind of fault caused this tsunami? Create a PREZI (www.prezi.com) about a documented earthquake or tsunami. It must have at least 8 slides. These slides need to include the following information: 1. Explain what causes earthquakes. 2. Definitions of the following terms as you explain earthquakes a. Magnitude b. Fault lines c. Wave speed d. Frequency 3. Illustration of a wave and it parts 4. Exact location of the earthquake or the earthquake that caused the tsunami 5. Magnitude 6. Cities/countries affected by shaking or by the wave 7. Number of people killed or missing 8. Pictures of the wave or pictures of the city after the earthquake *** You may add as many pictures as you like.