Earthquakes in Australia Australia is a very lucky country that suffers very few earthquakes or volcanic eruptions. Earthquakes are caused by converging plates (usually subducting)‚ and there a 4 different types of waves in two categories; firstly there is Body waves which are broken into primary and secondary waves (these travel through the earth) Surface waves travel through only the crust and are called Love and Rayleigh. These Waves (the earthquakes) are measured by a seismograph/ a device that
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Tsunami and Earthquake Sion Hau 7D 31/07/11 An earthquake occurred in Sendai‚ Japan on the 11th of March in 2011; this earthquake also resulted in a tsunami. The earthquake measured at magnitude 8.9-9.0 on the Richter scale‚ the scale is measured in powers of ten (e.g. magnitude 2.0 is ten times more than magnitude 1.0). Japan sits on the Ring of Fire (an area encircling Pacific Ocean that has high volcanic and earthquake activity)
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March 27‚ 1964 a magnitude 9.2 earthquake hit Alaska its epicenter located in Prince William Sound‚ 75 miles east of Anchorage. This earthquake was and still is the second larges earthquake ever recorded (Christensen). The plates involved In this major earthquake were the Pacific plate and North American plate. This subduction zone is know as Aleutian-Alaska megathrust zone (Sokolowski). This region was known for its active plate tectonics‚ but this earthquake did come as a surprise to the public
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Mikela Sammy U62 Caribbean Studies QUESTION: Access the measures that Caribbean countries could realistically undertake to minimize the danger posed by earthquakes. An earthquake is a sudden and violent shaking of the ground‚ sometimes causing great destruction‚ as a result of movements within the earth’s crust or volcanic action. This happens when two blocks of the earth suddenly slip past one another. The Earth’s crust is made up of about a dozen plates on which the continents and oceans
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San Francisco have all experienced a fault shift. In the case of Houston‚ the likelihood of an earthquake is extremely low. The instances of a fault shift on that area of the North American Plate don’t occur often. Earthquakes that occur are not by normal means of plates shifting but from the process of fluid extraction (Fehling 19). Seattle on the other hand has a very high probability of an earthquake occurring. There are three different types of quakes that the city experiences crustal quakes‚
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Prediction Why didn’t scientists know about the faults that caused the two earthquakes? Prior to September 4th‚ there were no surface signs of the Greendale Fault or the fault that generated the Lyttelton aftershock and there was no evidence for seismicity on these faults (i.e. ‘foreshocks’). Seismic surveys have located some ‘hidden’ faults across parts of the Canterbury Plains‚ but these particular regions had not been surveyed for this purpose. An oil-gas seismic survey had been carried out
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Comparing Kobe and Sichuan Earthquake- “The wealth of a country influences the nature of the earthquake event experienced there”. With reference to the Kobe earthquake (1995) and Sichuan earthquake (2008)‚ decide whether this statement is true or not. This statement can be true in a number of ways‚ because an MEDCs have generally better infrastructures made for withstanding huge earthquakes unlike LEDCs where houses (especially squatter settlements) are damaged very easily and this makes the
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but unfortunately the massive earthquake that hit on 26th December 2003 at 05:26 local time destroyed the entire city. An estimation from the United States Geological Survey reports that the earthquake measured 6.6 on the Richter scale‚ they also say that the epicentre was 185km southeast of Kerman. Before After The Earthquake This huge earthquake took the lives of 26‚271 people
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EARTHQUAKE HAZARD STUDY - PANAMA Aaron Lai + Eva Fong INTRODUCTION TO THE EVENT: Panama is a small country located in Central America‚ next to Costa Rica (refer to Map 1).1 This Latin American country has a population of 3‚608‚431 people.2 Panama is also located on a minor tectonic plate called the Panama Microplate. With reference to Map 2‚ the Panama Microplate is surrounded by four other tectonic plates: the Cocos plate‚ the Caribbean plate‚ the Nazca plate‚ and the South American plate. Due
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Period 5 March 19‚ 2013 Essay The history of these earthquakes caused major damage in Earthquakes occur every day on Earth‚ but the vast majority of them are minor and cause no damage. Large earthquakes can cause serious destruction and massive loss of life through a variety of damages can occur including fault rupture‚ intensive shaking‚ tsunami‚ dam failure‚ landslide and fire or hazardous materials could realease. In a particular earthquake‚ any of these disasterious events of damage can occur
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