Science and technology

Could Landslides Trigger Volcanic Eruptions? Study Says So

New research not only implies a link between catastrophic volcanic eruptions and landslides but also suggests that landslides are the trigger. At the heart of Tenerife and standing almost 4 km high, Teide is one of the largest volcanoes on Earth. Over a period of several hundred thousand years, the previous incarnations of Teide have undergone a repeated cycle of very large eruptions, collapse, and regrowth.

Antonio Manaytay – Fourth Estate Contributor

Liverpool, United Kingdom (4E) – Scientists on the National Oceanographic Centre (NOC) had prompt in a brand new examine that landslides may set off volcanic eruptions. The examine, revealed in Nature Scientific Reports, is seen as an enormous assist to tell “hazard mitigation strategies” of volcanic islands.

These findings after NOC scientists studied Teide, one of many world’s largest volcanoes on the coronary heart of Tenerife.

Previously, the NOC scientists had revealed that Teide’s previous eruptions have been carefully linked to submarine landslides at completely different levels after they found that landslides and volcanic deposits have the identical ages and composition.

Studying additional the landslide deposits, the scientists noticed that supplies from volcanic eruptions have been discovered solely within the uppermost layers of every deposit. This may imply that the primary levels of each landslide occurred underwater earlier than every eruption – a powerful indication that the preliminary levels of landslides could have been the set off of the volcanic eruptions.

The NOC scientists additionally regarded into the traits of the skinny volcanic clay layers between eruption and landslide deposits. They estimated that it’ll take at the least 10 hours for an eruption to happen after the primary submarine landslide.

“This new research shows that after the initial submarine landslide there could be between ten hours to several weeks until the eruption is finally triggered – very different from the near-instantaneous landslide triggering of the 1980 Mt. St. Helens eruption,” examine lead creator Dr. James Hunt mentioned.

“This information could help inform hazard mitigation strategies for volcanoes similar to Teide, such as Mt. St. Helens or Montserrat,” he mentioned.

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