Where is tsunamis most likely to occur

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One reason Norway is at increased risk for tsunamis is because of landslides from deteriorating mountains. In , a crack in a mountain above the village of Tafjord unleashed a tsunami that killed 23 people. One of the most devastating tsunamis in history occurred in Portugal in The tsunami originated from a massive earthquake in the Atlantic Ocean, miles from the Portuguese coast.

In late , two quakes hit near the island in a month, triggering small tsunami waves along the coast. You may also like: 10 ways nature and animals forecast the weather.

A recent study by Chinese scientists shows that a tsunami that occurred 1, years ago almost destroyed all of Southern China, which is now one of the most densely populated areas in the world. The scientists added that current tsunami risks are exacerbated, not only by geology but also by nuclear power plants in the country. Officials in the Solomon Islands have said that they expect to be hit by tsunamis every three years. One scientist said that the area has some of the fastest moving plates in the world, which result in tsunami-generating earthquakes.

In , a nighttime earthquake threw Turkish coastal residents out of bed and triggered tsunamis in Turkey and nearby Greece. Scientists warn that future tsunamis in Mexico are likely. In , a devastating tsunami in Cututlyan killed 30 people, reducing many buildings to rubble and washing sharks up on the beach.

That event sparked fears that Mexico was simply not prepared to protect and warn its citizens in the event of another tsunami. Many tsunami warnings in Peru are due to earthquakes.

In , the country was put on watch after a 7. You may also like: 30 incredible photos that show the true power of nature. In , a devastating tsunami hit Papua New Guinea, destroying many villages and killing 1, people in three successive waves. Residents fled inland and tried to gain elevation, but for many the waves proved too strong and fast to escape successfully.

Experts in New Zealand are concerned sufficient procedures are not in place to warn residents of approaching tsunamis in time. A plate boundary is the area where two plates come into contact. The way one plate moves relative to another determines the type of boundary: spreading, where the two plates move away from each other; subduction, where the two plates move toward each other, with one sliding beneath the other; and transform, where the two plates slide horizontally past each other.

Subduction is the main cause of major tsunami events. There are subduction zones with associated deep-sea trenches off Chile, Alaska, Japan, and Indonesia, for example, that have produced large earthquakes and devastating tsunamis, many of which caused damage and loss of life in the Hawaiian Islands.

Part of the seafloor snaps upward as the tension is released. The entire column of seawater is pushed toward the surface, creating an enormous bulge.