all earthquakes‚ most volcanoes‚ occur where lithospheric plates are interacting 2) Main mineral and hydrocarbon resources occur in specific tectonic settings 3) Plate tectonic processes happening at depth responsible for occurrences at Earth’s surface: size and shape of oceans‚ nature and distribution of landforms‚ general climatic conditions of each of Earth’s regions Plate Boundaries - map of epicenter of significant earthquake‚ M > 3.5 - active boundaries marked by zones of earthquakes and
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plate so‚ as they move together‚ the oceanic plate is forced underneath the continental plate. The point at which this happens is called the subduction zone. As the oceanic plate is forced below the continental plate it melts to form magma and earthquakes are triggered. The magma collects to form a magma chamber. This magma then
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mantle . mantle: ]. The crust is made up of tectonic plates [tectonic plates: Large areas of the Earth’s crust that move slowly on the upper part of the mantle‚ often colliding and moving away from each other. ]‚ which are in constant motion. Earthquakes and volcanoes are most likely to occur at plate boundaries. 1.1 The structure of the Earth The Earth is made up of four distinct layers: 1. The inner core is in the centre and is the hottest part of the Earth. It is solid and made up of iron and
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Alfred Wegner used for his theory of "Continental Drift"? 10. What was Harry Hess’ major contribution to the understanding of Plate Tectonics? This a map showing the distribution of earthquakes from 1990 to 1996. A similar map is on page 54 in your text. 11. Are the earthquakes randomly distributed? 12. Are the volcanoes randomly distributed over the globe? 13. What is the age of the oldest sea floor? 14. In the Atlantic Ocean‚ where is the oldest sea floor? 15. Where is the youngest sea floor
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eastern island of Japan‚ is primarily mountainous‚ but most of Japan’s flat land is found here. There are several active volcanoes located here. Such as Mt. Fuji‚ Japan’s highest mountain. Summers are reasonably warm and wet‚ possibly humid. Winters are mildly cold and in some cases dry. The island of Kyushu‚ based on the southern areas of Japan has several active volcanoes. It also consists of crater lakes and hot springs. If you go to the warm seas near the coast‚ coral reefs can be found. The
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is the normal relationship between number of occurrences of a particular type of event and the size of such events? * numerous small events‚ a few larger events‚ and only rarely a giant event [p. 6] 5. When is a large event such as a major earthquake not a disaster? * when it happens in a remote area and does not affect anyone [p.3] 6. When people incur a significant loss from a natural disaster‚ who is most commonly to blame‚ and why? * People themselves are to blame because they place
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Tsunamis are barely felt as a ripple on the ocean’s surface‚ but as the waves reach land‚ they increase in size as the water becomes shallower. Japan earthquake and tsunami At 2:46pm Japanese time‚ on March 11th 2011‚ an earthquake with the magnitude of 9.0 took place 100km of the coast of Japan‚ and was the 5th most powerful earthquake ever recorded.
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Pat I. Volcanoes and Volcanic Hazards (Chapter 4) 1. Between 2001 and 2012‚ 41 volcanic events occurred worldwide. 2. 11 eruptions with VEI>=3 erupted from 2001-2012 3. Some volcanoes that were erupted and associated with tsunamis are: * Name: Stramboli Eruption type: stratovolcano Location: Italy * Name: Soufriefe hills (2003) Eruption type: stratovolcano Location: W indies * Name: Soufriefe hills (2006) Eruption type: stratovolcano
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large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 40‚000 km (25‚000 mi) horseshoe shape‚ it is associated with a nearly continuous series of oceanic trenches‚ volcanic arcs‚ andvolcanic belts and/or plate movements. The Ring of Fire has 452 volcanoes and is home to over 75% of the world’s active and dormant volcanoes.[1] It is sometimes called the circum-Pacific belt or the circum-Pacific seismic belt. About 90%[2] of the world’s earthquakes and 81%[3] of
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or an extra hot plume of molten rock. This happens when heat rises as a thermal cloud from inside of the Earth. Heat and pressure at the bottom of the tectonic plate forces magma to form which then rises through cracks and erupts to form volcanoes. As volcanoes move away from a hotspot‚ they start to erode and become inactive. Maui is the third oldest volcano of the main Hawaiian islands and could still erupt one more time. Haleakalā or the East Maui Volcano is also a shield volcano or a broad‚ domed
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