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Tsunami — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Tsunami
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-08T00:22:50.222Z
SHA-256 of the archived text: 2156ed91e187c58e85511519036185bf8f5298ac4b3235fe4df3548692b16213
Stable URL of this page: https://metraipolis.com/documento/dc_e4e1db69b414

How to cite

Tsunami — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Tsunami (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_e4e1db69b414 (Metraipolis archive dc_e4e1db69b414, sha256 2156ed91e187c58e85511519036185bf8f5298ac4b3235fe4df3548692b16213)

BibTeX

@misc{dce4e1db69b414,
  title = {Tsunami — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Tsunami},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_e4e1db69b414; sha256 2156ed91e187c58e85511519036185bf8f5298ac4b3235fe4df3548692b16213},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Tsunami. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

A tsunami ( (t)soo-NAH-mee, (t)suu-; from Japanese: 津波, lit. 'harbour wave', pronounced [tsɯnami]) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions, underwater explosions, landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event. Tsunami waves do not resemble normal undersea currents or sea waves because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide. For this reason, it is often referred to as a tidal wave, although this usage is not favoured by the scientific community because it might give the false impression of a causal relationship between tides and tsunamis. Tsunamis generally consist of a series of waves, with periods ranging from minutes to hours, arriving in a so-called "wave train". Wave heights of tens of metres can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous, and they can affect entire ocean basins. The 2004 Indian Ocean tsunami was among the deadliest natural disasters in human history, with at least 230,000 people killed or missing in 14 countries bordering the Indian Ocean. The Ancient Greek historian Thucydides suggested in his 5th century BC History of the Peloponnesian War that tsunamis were related to submarine earthquakes, but the understanding of tsunamis remained slim until the 20th century, and much remains unknown. Major areas of current research include determining why some large earthquakes do not generate tsunamis while other smaller ones do. This ongoing research is designed to help accurately forecast the passage of tsunamis across oceans as well as how tsunami waves interact with shorelines.

Tema degli esploratori: terra, clima ed energia (deposito sistematico; ricerca «seismology»).
Fonte: Wikipedia in inglese, voce «Tsunami» — https://en.wikipedia.org/wiki/Tsunami
Wikidata Q8070 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q8070
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Tsunami?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1376798379, consultata il 2026-10-08T00:00:29.879Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: d359c87b6bd25b9b61285695e76a5f1b8343e176e63049c9c12a279dd963b2b3