Which Canary Island is unstable?

The island of La Palma in the Canary Islands is at risk of undergoing a large landslide, which could cause a tsunami in the Atlantic Ocean. Volcanic islands and volcanoes on land frequently undergo large landslides/collapses, which have been documented in Hawaii for example.



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The islands with the most volcanoes are Gran Canaria, Tenerife and La Palma.

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But elsewhere, as here on La Palma, more violent eruptions build steep-sided cones with surrounding layers of thick ash. Eruptions in the past 60 years have jolted this island to the core, creating a fault line - a crack you can walk through - along the island central spine 6,000 feet above the Atlantic Ocean.

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The Cumbre Vieja (Spanish pronunciation: ['kumb?e 'ßjexa]; meaning Old Summit) is an active volcanic ridge on the island of La Palma in the Canary Islands, Spain.

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While Teide tends to erupt about every 100 years, predicting an eruption is difficult.

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Unlike on Hawaii, flank movements at Canary Islands appear to occur mainly during volcanic episodes. Tsunamis are less common in the Atlantic Ocean than in the Pacific or the Indian oceans, but they have been observed e.g. after the 1755 Lisbon earthquake.

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The Canary Islands region is still volcanically active. The most recent volcanic eruption on land occurred in 2021 and the most recent underwater eruption was in 2011-12.

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The smallest of the main Canary Islands, El Hierro is also the least touristy.

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Fuerteventura is considered the quiet island of the Canaries, which invites travellers to relax and rest.

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“Lanzarote and Fuerteventura are much older and are marked by processes of erosion, rather than growth,” she said. Nevertheless, Mateo said that, although an eruption is “very unlikely”, it's not impossible, and recalled that the last eruption in Lanzarote took place in 1824 at Tinguatón.

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The Cumbre Vieja (Spanish pronunciation: ['kumb?e 'ßjexa]; meaning Old Summit) is an active volcanic ridge on the island of La Palma in the Canary Islands, Spain.

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The Canary Islands were created by a series of volcanic eruptions millions of years ago. The oldest of these is Fuerteventura, which is thought to be over 20 million years old, followed by Lanzarote, Gran Canaria, Tenerife, La Gomera, La Palma and El Hierro, respectively.

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Eruptions on La Palma can last from a few weeks to several months. “The only way to know is to know the total volume of eruptible magma under Cumbre Vieja,” says Pablo J. González, a physical volcanologist at the Spanish National Research Council on Tenerife.

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The Canary Islands are located in an active seismic zone and have several volcanoes. Earthquakes and volcanic eruptions occur. In 2021, the eruption of the Cumbre Vieja volcano on the island of La Palma caused widespread damage. During a volcanic eruption, ash can disrupt air travel.

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The area with the highest seismic activity in the Canary Islands, not directly related to volcanic activity, is located in the channel between the islands of Gran Canaria and Tenerife. In this zone a continuous amount of earthquakes is concentrated located since seismic instrumentation is deployed.

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