California: Disaster Hotspot

atomic number 20 is a disaster hotspot. mishap hotspots be unprotected places at risk from two or more hazards. The assert of calcium in the USA has many a(prenominal) highly inhabit towns and cities at risk from a pastiche of hazards. The map shows examples and locations of ago hazards that have caused disasters. Earthquakes 1. The San Andreas Fault runs the length of California its a conservative plate boundary. 2. Earthquakes occur when wring between the plates builds up and then is suddenly released as they flick passed from each one other. 3. California has 2 or 3 earthquakes each year that are powerful enough to damage structures (5.5+ on the Richter scale) 4. Studies of their frequency and magnitude of past earthquakes show that theres a bully chance of an earthquake of magnitude 7.0+ strike the San Francisco Bay force field before 2025. 5. Past disasters take the San Francisco earthquake of 1906 (magnitude 7.8) which along with ulterior fires destroyed much of the city. Droughts 1. Droughts in California can be caused by anticyclones (long-lasting periods of high fashion pressure with sink, ironical air. Dry, sinking air means no rain. 2. Drought can everyplacely be caused by La Nina events (periods when the shape up water in the atomic number 99ern Pacific nautical is cooler). This means slight evaporation, so theres less precipitation.

3. Another cause of drought is increased wind blowing western from the desert areas that are east of California, e.g. Arizona. The dry air has no moisture to cause precipitation. 4. The roughly devastating effect of drought in California is wildfires dry ve poundation is extremely flammable, so fires spread quic! kly over wide areas. 5. The wildfires in southern California in October 2007 killed 22 people and destroyed 1300 homes. Tsunamis 1. A tsunami is a series of self-aggrandizing waves that can flood coastal areas. 2. They can be caused by earthquakes on the sea bed, or landslides into the sea. 3. Earthquakes under the Pacific Ocean could cause a...If you want to get a full essay, high society it on our website: OrderEssay.net

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