When we hear the word earthquake we get goose bumps because the word reminds fear in our minds does it not? Yes‚ it does‚ we think that an earthquake can kill us any moment destroying our homes into dust. Science tells that; Earthquake is the shaking of the earth’s surface caused by rapid movement of the earth’s rocky outer layer. Earthquakes occur when energy stored within the earth suddenly releases‚ the size varies from small hardly noticeable shaking‚ to large shocks which can be felt from miles
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the 1994 Northridge earthquake occurred on January 17‚ 1994. The earthquake was centered in Reseda‚ a neighborhood in the north-central San Fernando Valley region of Los Angeles‚ California. “It was a 6.7 magnitude earthquake that lasted 10 – 20 seconds. In addition‚ two 6.0 magnitude aftershocks occurred‚ the first about one minute after the initial event and the second approximately 11 hours later‚ the strongest of several thousand aftershocks in all.” (USGS‚ 2012) Earthquakes are usually caused
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that results in relative movement or opposing sides. Seismic Wave- earthquake waves‚ including primary waves‚ secondary waves‚ and surface waves. Epicenter- the point on earths surface located directly above the earthquakes focus. Magnitude- a measure of the energy released by and earthquake. Seismograph- instrument used to record seismic waves. Tsunami- powerful seismic sea wave that begins over an ocean floor earthquake can reach 30 minutes height when approaching land and can use destruction
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We can therefore assume that term a lithospheric hazard refers to those that are caused through geological processes that have threats to human life and the environment they live in. These types of hazards include things such as Volcanoes and Earthquakes‚ namely because their source of origins are directly linked to tectonic and earthly activity. With the occurrence of lithospheric hazards i.e. the hazard being turned into an event or disaster‚ there comes about effects in the short and long run
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Soil Liquefaction Dangers During Earthquakes An earthquake brings a number of hazards: • Ground shaking and shifting can cause major damage‚ tearing apart houses‚ buildings‚ and roads. • Flooding that arises from broken water dams or river levees is another hazard. • Tsunamis‚ triggered by an undersea earthquake as well as seiches – waves coming from lakes shaken by a temblor – can submerge whole communities‚ sweep away edifices‚ topple trees and drown people. • Fire is another seismic hazard
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Short Essay: The 2010 Haiti Earthquake -Chloe Hunt Word count: 556 (not including headings‚ sub-headings‚ reference list‚ figures‚ in-text citations) Introduction: Haiti is one of the most disaster prone countries on the planet‚ experiencing reoccurring floods‚ hurricanes‚ earthquakes and tropical storms‚ placing a dent in the countries social and economical development. The 2010‚ 7.0 magnitude Haiti earthquake was the most severe natural catastrophe recorded in the countries history. (Borenstein
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reduce the impact of tectonic hazards. Tectonic hazards are comprised of earthquakes and volcanoes; they are named ‘tectonic hazards’ as it is ultimately the movement of tectonic plates that cause these events. These hazards have the potential to kill thousands and devastate the region it strikes. Although the main hazard causes destruction‚ events that follow can be equally‚ if not more‚ devastating‚ for example an earthquake can often trigger a tsunami. Many strategies have been put forward to try
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and comic in its existence‚” (“Quotable Quote” 1). This too can be said about natural disasters in today’s time. A natural disaster is defined in Webster’s Dictionary as‚ “any form of nature that has catastrophic consequence‚ such as an avalanche‚ earthquake‚ flood‚ forest fire‚ hurricane‚ lighting‚ tornado‚ tsunami or volcanic eruption.” Many times the people affected by such an event take a backseat to the actually disaster itself. Why is that? Why is it that certain parts of the world‚ when hit by
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crack. Smoke starts to darken the sky. What is happening? It’s obvious – an earthquake. The highly populated Los Angeles metropolitan area is surrounded by a large complex network of thrust and strike-slip faults. To the northern edge lies the Sierra Madre-Cucamonga thrust fault system. To the north and east are the San Jacinto and San Andreas right-lateral strike-slip fault systems. Studies have shown that California’s earthquake zones are more complex and lethal than once thought. Southern California
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rock‚ and‚ therefore‚ no volcanic activity or formation of new crust. Despite the absence of volcanic activity‚ these margins are tectonically extremely active and are associated with powerful‚ considerable magnitude‚ earthquakes‚ being the sites of extensive shallow focus earthquakes. Transfer faults are mainly found on the ocean floor‚ where they offset mid ocean ridges and enable the ocean floor to spread at different rates. At conservative plate boundaries‚ there are very few features to be seen
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