This is because of the properties of the Pacific Rim; it has a high number of active submarine earthquake zones, which are a major factor in the occurrence of tsunamis. The earthquake can occur under a city (ex. The heavy oceanic plates in this region slip under the light continental plates. Broken plates cause the seafloor to move up and down, a movement that transfers energy to the ocean. sudden trembling or shaking of the ground usually caused by shifting of rock layers along fault under or at earth's surface; caused by a release of energy Where do earthquakes occur? They do not occur at any particular time of year. A tsunami is usually composed of a series of waves, called a wave train, so its destructive force may be compounded as successive waves reach shore. Q: Where do tsunamis occur? along plate boundaries Tsunamis occur most often in the Pacific Ocean and Indonesia because the Pacific Rim bordering the Ocean has a large number of active submarine earthquake zones. How do tsunamis occur? Every coastal area and river estuary is potentially threatened by tsunamis, but they are most likely to happen on shores facing directly a megathrust. Tsunami are actually waves caused by sudden movement of the ocean due to earthquakes, landslides on the sea floor, land slumping into the ocean, major volcanic eruptions or large meteorite impacts. Tsunamis occur after an earthquake. Local tsunamis happen about once a year. However, it is … Scientists estimate that almost three quarter of the world tsunamis occur in the Pacific Ocean, where the megathrusts (subduction zones) are so common (Aleutian Islands, Alaska, Chile, Philippines, Japan etc). Tsunamis occur with the most frequency in the Pacific Ocean and around Indonesia. A: Tsunamis often occur in the Pacific. Where do tsunamis most often occur in the world? However, tsunamis have also occurred recently in the Mediterranean Sea region and are expected in the Caribbean Sea as well. The New Madrid Missouri fault line; or the Los Angeles area's fault lines), but many occur on the ocean or sea floor. Tsunamis are usually triggered by earthquakes or landslides, and so are not affected by weather or seasons. how tsunamis occur 1 As one plate subducts below another, pressure builds after many years, resulting in a section of the mega-thrust giving away 2 As this section gives way, it ruptures the ocean floor, resulting in a massive displacement of water, causing a tsunami Q: Can tsunamis be prevented or forecast?

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