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EarthquakesBC
EarthquakesBC

... Focus and Epicenter Focus: the point at which energy is released, causing the earthquake Epicenter: the point on the surface of the Earth that is directly above the earthquake focus. ...
Earthquakes
Earthquakes

... Focus and Epicenter Focus: the point at which energy is released, causing the earthquake Epicenter: the point on the surface of the Earth that is directly above the earthquake focus. ...
December 26, 2004 Indian Ocean Earthquake & Tsunami
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Tsunami Geology - What Causes a Tsunami?
Tsunami Geology - What Causes a Tsunami?

... What causes a tsunami?... A tsunami is a large ocean wave that is caused by sudden motion on the ocean floor. This sudden motion could be an earthquake, a powerful volcanic eruption, or an underwater landslide. The impact of a large meteorite could also cause a tsunami. Tsunamis travel across the op ...
North American and Japanese Clues to a Giant Earthquake in the
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... One winter's night in the year 1700, a mysterious tsunami flooded fields and washed away houses in Japan. It arrived without the warning that a nearby earthquake usually provides. Samurai, merchants, and villagers wrote of the event, but nearly three centuries would pass before geological and dendro ...
Tsunami - Meaning,Safety
Tsunami - Meaning,Safety

... What is Tsunami ? Tsunami is a Japanese word meaning ‘Harbour Wave’. In the past the scientific community sometimes referred to them as ‘tidal waves’ or ‘seismic sea waves’. Tsunamis are the hydrosphere’s most destructive force. They are giant waves that are caused by sudden movement of the seabed ...
Tsunamis - Laconia School District
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lecture * 2011 japanese tsunami and wave properties
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• Tsunami is a Japanese word meaning "harbour wave(s
• Tsunami is a Japanese word meaning "harbour wave(s

... • Tsunamis are caused by a large-scale perturbation of the ocean floor that displaces a huge volume of water. Three mechanisms can cause this: ...
TSUNAMI WORKSHEET Answer the following questions: 1. How big
TSUNAMI WORKSHEET Answer the following questions: 1. How big

... The tsunamis are more dangerous for docked boat than for boats in the open ocean because in the dock the boats are tied up and can’t go anywhere they get distroied and for a boat in the ocean it has the freedom to go anywhere it can, 5. What kind of instrument is used to detect if a tsunami is headi ...
Answer Key - MrTestaScienceClass
Answer Key - MrTestaScienceClass

... slows. Why does the tsunami become a large surge of water? The back of the wave does not slow and catches up to the front to amplify the wave, creating a surge or a wall of water 8. How does the shape of the seabed affect the way the tsunami impacts the coast? A shallow seabed allows waves to travel ...
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Rare Video: Japan Tsunami
Rare Video: Japan Tsunami

... On March 11, 2011, an earthquake and tsunami off the coast of Japan left more than 28,000 dead or missing. This video captures a first-hand perspective of the tsunami as it washes over the landscape, turning the infrastructure to rubble. ...
The Shaking Ocean Floor
The Shaking Ocean Floor

... waves called a tsunami. Big earthquakes make larger waves. The waves are very long, and they can travel very quickly. So what exactly causes earthquakes on the ocean floor? Earth’s crust is like a puzzle. It is made of many pieces that are always moving. The pieces are called plates. ...
Most tsunamis, about 80 percent, happen within the Pacific Ocean`s
Most tsunamis, about 80 percent, happen within the Pacific Ocean`s

... powerful ocean waves produced by an earthquake, landslide, volcanic eruption, or asteroid impact. Tsunami waves can travel great distances and still retain much of their strength. They differ from common ocean waves, which are caused by wind. ...
Tsunami - BrainPOP
Tsunami - BrainPOP

... c. They can travel long distances and carry lots of energy d. They travel along at exactly the speed of sound 8. Where would you find a subduction zone? a. At the boundary between Asia and Europe b. In the middle of the ocean, far away from the continents c. Off the coast of a continent d. Near the ...
Tsunami - BrainPOP
Tsunami - BrainPOP

... c. They can travel long distances and carry lots of energy d. They travel along at exactly the speed of sound 8. Where would you find a subduction zone? a. At the boundary between Asia and Europe b. In the middle of the ocean, far away from the continents c. Off the coast of a continent d. Near the ...
Tsunami Expert - Spokane Public Schools
Tsunami Expert - Spokane Public Schools

... Definition & Causes of a Tsunami The most common causes of tsunamis are volcanoes, earthquakes and earth slides - mostly undersea. Volcanoe magma chambers collapses forming a crater sometimes up to one kilometer in diameter. Water gushes into this crater in a very short amount of time, causing a tsu ...
KEY
KEY

... the water dumped on land pours back to the sea, This is when much of the damage is done as people are battered by debris and sucked out to sea. Even worse, tsunamis seldom come in ones. The second or third wave is usually the biggest, and some tsunamis have divided into seven or more waves. Tsunamis ...
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Tsunami



A tsunami (plural: tsunamis or tsunami; from Japanese: 津波, lit. ""harbor wave"";English pronunciation: /tsuːˈnɑːmi/), also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami. In being generated by the displacement of water, a tsunami contrasts both with a normal ocean wave generated by wind and with tides, which are generated by the gravitational pull of the Moon and the Sun on bodies of water.Tsunami waves do not resemble normal sea waves, because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves, although this usage is not favored by the scientific community because tsunamis are not tidal in nature. Tsunamis generally consist of a series of waves with periods ranging from minutes to hours, arriving in a so-called ""wave train"". Wave heights of tens of meters can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous and they can affect entire ocean basins; the 2004 Indian Ocean tsunami was among the deadliest natural disasters in human history with at least 230,000 people killed or missing in 14 countries bordering the Indian Ocean.The Greek historian Thucydides suggested in his late-5th century BC History of the Peloponnesian War, that tsunamis were related to submarine earthquakes, but the understanding of a tsunami's nature remained slim until the 20th century and much remains unknown. Major areas of current research include trying to determine why some large earthquakes do not generate tsunamis while other smaller ones do; trying to accurately forecast the passage of tsunamis across the oceans; and also to forecast how tsunami waves would interact with specific shorelines.
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