Eastern Caribbean issues alert for volcanoes quiet for decades.

Volcanoes that have been quiet for decades are rumbling to life in the eastern Caribbean, prompting officials to issue alerts in Martinique and St Vincent and the Grenadines.

Scientists are rushing in to study activity they say has not been observed in years.

The most recent warning was issued late on Tuesday for La Soufrière volcano in St Vincent and the Grenadines, a chain of islands home to more than 100,000 people.

Officials reported tremors, strong gas emissions, formation of a new volcanic dome and changes to its crater lake.

The Caribbean Disaster Emergency Management Agency said scientists observed an “effusive eruption within the crater, with visible gas and steam” on Tuesday.

The government warned those living near the volcano to prepare to evacuate if needed, declaring an orange alert that means eruptions could occur with less than 24 hours’ notice.

La Soufrière, located near the northern tip of the main island of St Vincent, last erupted in 1979, and a previous eruption in 1902 killed some 1,600 people.

That occurred shortly before Martinique’s Mount Pelée erupted and destroyed the town of Saint-Pierre, killing more than 30,000 people.

Mount Pelée too is now active once again.

In early December, officials in the French Caribbean territory issued a yellow alert due to seismic activity under the mountain.

It was the first alert of its kind issued since the volcano last erupted in 1932, Fabrice Fontaine, from Martinique’s Volcanological and Seismological Observatory, told the Associated Press.

While the eastern Caribbean is one long chain of active and extinct volcanoes, volcanologist Erik Klemetti, at Denison University in Ohio, said the activity at Mount Pelée and La Soufrière is not related.

“It’s not like one volcano starts erupting that others will,” he said.

“It falls into the category of coincidence.”

He said the activity is evidence that magma is lurking underground and percolating towards the surface, although he added that scientists still do not have a very good understanding of what controls how quickly that happens.

“The answers are not entirely satisfying,” he said. “It’s science that’s still being researched.”

Mr Klemetti said the most active volcano in recent years in the eastern Caribbean has been Soufrière Hills in Montserrat, which has erupted continuously since 1995, destroying the capital Plymouth and killing at least 19 people in 1997.

Seventeen of the eastern Caribbean’s 19 live volcanoes are located on 11 islands, with the remaining two underwater near the island of Grenada, including one called Kick ‘Em Jenny that has been active in recent years. – AP

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