Английская Википедия:1938 Banda Sea earthquake

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Шаблон:Short description Шаблон:Infobox earthquake The 1938 Banda Sea earthquake occurred on February 2 with an estimated magnitude of 8.5–8.6 on the moment magnitude scale and a Rossi–Forel intensity of VII (Very strong tremor). This oblique-slip event generated destructive tsunamis of up to 1.5 metres in the Banda Sea region, but there were no deaths.

Tectonic setting

The Banda Sea is located within a very complex tectonic regime that accommodates the convergence between the Australian Plate and the Sunda Plate. The Molucca Sea Plate, Bird's Head Plate, Timor Plate, and Banda Sea Plate all help accommodate the elaborate plate boundary system in the region.[1][2] This collection of microplates leads to large amounts of seismicity in the area, including the 1852 Banda Sea earthquake which was potentially a Шаблон:M 8.8 event, as well as the 1629 Banda Sea earthquake which was also estimated at up to Шаблон:M 8.8.[3][4][5]

Earthquake

At around 04:00 local time, a large earthquake started to shake the Banda islands. With a moment magnitude (Шаблон:M) of 8.5–8.6, the earthquake caused a destructive tsunami of 1 meter at the Kai islands.[6][7][8] The tsunami expected for an earthquake of this size is much greater, such as of those in 1629 and 1852, however this earthquake occurred at a depth of 60km which impeded much of the ocean floor displacement which leads to a tsunami.[6] This earthquake is of significant scientific interest as it remains a mystery as to precisely which fault produced this earthquake. Some studies consider this earthquake the largest intraslab earthquake we know of.[7]

Tsunami

Despite being a large thrust faulting event, the tsunami was rather small. This is assumed to be caused by the 60 kilometer depth. At the Kai islands, runups of 1 meter were recorded.[6] Beachfront damage was reported across the Tayandu Islands and the entire Banda region.[6]

See also

References

Шаблон:Reflist

External links

Шаблон:Earthquakes in Indonesia


Шаблон:Asia-earthquake-stub

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  1. ↑ Шаблон:Cite book
  2. ↑ Шаблон:Cite journal
  3. ↑ Шаблон:Cite journal
  4. ↑ Шаблон:Cite journal
  5. ↑ Шаблон:Cite journal
  6. ↑ 6,0 6,1 6,2 6,3 Ошибка цитирования Неверный тег <ref>; для сносок Okal не указан текст
  7. ↑ 7,0 7,1 Ошибка цитирования Неверный тег <ref>; для сносок Cummins2020 не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Duda1965 не указан текст
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