A tsunami ( Japanese word ) or "harbor wave" and at one time referred to as a tidal wave, is a series of water waves caused by the displacement of a large volume of a body of water, usually an ocean, though it can occur in large lakes. 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, underwater landslides, glacier calvings 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.
| 2004, Banda Aceh, Sumatra, Indonesia |
(DigitalGlobe QuickBird satellite imagery, US Navy)
|2004 Tsunami Mikato City, Japan|
BANDA ACHEH, INDONESIA - December 26 2004. The tsunami completely razed coastal towns and villages, leaving behind only sand, mud, and water (middle) where once there had been thriving communities of homes, offices, and green space. Images of the destruction in Japan, like this one from Mikako city, have distressed survivors of the 2004 tsunami in Aceh.
2011 Tōhoku Earthquake
TOHOKU, JAPAN - The 2011 earthquake off the Pacific coast of Tohoku, also known as the 2011 Tōhoku earthquake or the Great East Japan Earthquake. It was the most powerful known earthquake ever to have hit Japan, and one of the five most powerful earthquakes in the world overall since modern record-keeping began in 1900. The earthquake triggered powerful tsunami waves, which reached heights of up to 40.5 metres (133 ft) in Miyako in Tōhoku's Iwate .
A magnitude 9.0 earthquake has occurred near the east coast of Honshu, Japan, as a result of thrust faulting on or near the subduction zone interface plate boundary between the Pacific and North American plates. This earthquake generated a tsunami, and a tsunami warning was issued throughout the Pacific.The massive earthquake literally shook the entire planet. The signals were read even at the top of the world, close to the north pole.
The earthquake has killed at least 15,690 people and a tsunami warning was extended across the Pacific to North and South America. The Red Cross warned that the tsunami waves could be higher than some Pacific islands. A passenger train with an unknown number of people aboard was missing in one coastal area.
|Aftermath Tsunami Tohoku Japan|