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A tsunami surge of 64-centimetre (25 in) hit Norfolk Island and tsunami waves of 30-to-40-centimetre (12 to 16 in) hit New Zealand, [197] while a much larger tsunami of 2.64 m (8.7 ft) in height hit Raoul Island, closest to the epicentre of the earthquake. [198] 2021 Ambon Earthquake-triggered underwater landslide
The Tauredunum event was a large tsunami on Lake Geneva in 563 CE, caused by sedimentary deposits destabilised by a landslide. In the 1950s, it was discovered that tsunamis larger than had previously been believed possible can be caused by giant submarine landslides. These large volumes of rapidly displaced water transfer energy at a faster ...
A megatsunami is a tsunami with an initial wave amplitude measured in many tens or hundreds of metres.The term "megatsunami" has been defined by media and has no precise definition, although it is commonly taken to refer to tsunamis over 100 metres (330 ft) high. [2]
On Dec. 26, 2004, a 9.2-magnitude earthquake shook Southeast Asia, triggering the worst tsunami in recorded history. According to United Nations estimates, more than 220,000 people were killed ...
Tsunamis can occur when an underwater earthquake rapidly displaces massive amounts of water, leading to a large, long wave that builds in intensity as it crosses the ocean.
A tsunami triggered by a large earthquake in Alaska would take approximately five hours to reach the city, the 2021 maps showed. ... More than 150 tsunamis have hit California’s shore since 1800 ...
Tsunamis there are relatively rare despite earthquakes being relatively frequent in Indonesia. The last major tsunami was caused by the 1883 eruption of Krakatoa. Not every earthquake produces large tsunamis: on 28 March 2005, a magnitude 8.7 earthquake hit roughly the same area of the Indian Ocean but did not result in a major tsunami.
According to Swedish authorities, some 20,000–30,000 citizens were in the tsunami-affected areas at the time, mainly in Thai resorts. 543 persons were reported deceased, and over 1,500 in need of emergency medical help and/or transportation home. 528 bodies had been identified as of May 16, 2006. [17]