Tsunami

A tsunami (Japanese: 津波 [tsɯnami], lit. ‘harbor wave’;^[1] English pronunciation: /tsuːˈnɑːmi/ tsoo-NAH-mee) or English pronunciation: /suːˈnɑːmi/ soo-NAH-mee)^[2] is a series of water waves (called a tsunami wave train^[3]) caused by the displacement of a large volume of a body of water, usually an ocean, but can occur in large lakes. Tsunamis are a frequent occurrence in Japan; approximately 195 events have been recorded.^[4] Owing to the immense volumes of water and the high energy involved, tsunamis can devastate coastal regions.

Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides and other mass movements, meteorite ocean impacts or similar impact events, and other disturbances above or below water all have the potential to generate a tsunami.

The Greek historian Thucydides was the first to relate tsunami to submarine earthquakes,^[5][6] but the understanding of a tsunami’s nature remained slim until the 20th century and is the subject of ongoing research. Many early geological, geographical, and oceanographic texts refer to tsunamis as “seismic sea waves.”

Some meteorological conditions, such as deep depressions that cause tropical cyclones, can generate a storm surge, called a meteotsunami, which can raise tides several metres above normal levels. The displacement comes from low atmospheric pressure within the centre of the depression. As these storm surges reach shore, they may resemble (though are not) tsunamis, inundating vast areas of land.

2011 Japanese Earthquake and Tsunami

A massive 8.9 magnitude earthquake hit the Pacific Ocean nearby Northeastern Japan at around 2:46pm on March 11 (JST) causing damage with blackouts, fire and tsunami. On this page we are providing the information regarding the disaster and damage with realtime updates.

The large earthquake triggered a tsunami warning for countries all around the Pacific ocean.

2004 Thailand