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A volcanic tsunami, also called a volcanogenic tsunami, is a tsunami produced by volcanic phenomena. About 20–25% of all fatalities at volcanoes during the last 250 years have been caused by volcanic tsunamis. The most devastating volcanic tsunami in recorded history was that produced by the 1883 eruption of Krakatoa. The waves reached ...
Volcanic eruption can damage originally stable magma chambers, causing a portion of the volcano to collapse. [1] While eruption is one cause, sector collapse can occur without any eruption. Magmatic intrusions can also lead to sector collapse. Dikes fracture and deform rock, leaving the volcano weaker and more susceptible to collapse.
The term "tsunami" is a borrowing from the Japanese tsunami 津波, meaning "harbour wave."For the plural, one can either follow ordinary English practice and add an s, or use an invariable plural as in the Japanese. [14]
The agency says the possible cause of the tsunami were undersea landslides after the Krakatoa volcano erupted. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: ...
Indonesian authorities on Wednesday ordered hundreds of villagers to evacuate following multiple eruptions of a remote island volcano, raising fears it could collapse into the sea and trigger a ...
There are numerous reports of groups of human skeletons floating across the Indian Ocean on rafts of volcanic pumice and washing up on the east coast of Africa up to a year after the eruption. [12]: 297–298 An observation made two weeks after the eruption describes the state of the affected areas, where the village of Tjaringin once was.
Mount Pelée remained relatively quiet until the afternoon of 5 May when a mudflow swept down a river on the southwest flank of the volcano, destroying a sugar mill. The massive flow buried about 150 people and generated a series of three tsunamis as it hit the sea. The tsunamis swept along the coast, damaging buildings and boats.
Tsunamis are most frequently caused by earthquakes, while those caused by volcanic eruptions are rare. [84] [85] Fewer than 100 volcanic tsunamis were recorded in the prior two centuries. [84] According to an official at GNS Science, the suspected cause of the tsunami was an undersea eruption that destroyed part of the island on 14 January ...