Sunday, January 03, 2021

Eastern Caribbean issues rare alerts for rumbling volcanoes

by Dánica Coto

DECEMBER 31, 2020

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 as scientists rush in to study activity they say hasn't been observed in years.

The most recent warning was issued late Tuesday for La Soufriere 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 that 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 Soufriere, 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 Mt. Pelee erupted and destroyed the town of Saint-Pierre, killing more than 30,000 people.

Mt. Pelee 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, with 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 Mt. Pelee and La Soufriere are 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 toward the surface, although he added that scientists still don't 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."

Klemetti said the most active volcano in recent years in the eastern Caribbean has been Soufriere Hills in Montserrat, which has erupted continuously since 1995, destroying the capital of 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 are underwater near the island of Grenada, including one called Kick 'Em Jenny that has been active in recent years.

Explore further Lava lake forms as Hawaii volcano erupts after 2-year break

© 2020 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.
102 shares


Facebook


Twitter



Email


Feedback to editors



Featured
Last Comments
Popular


Light-responsive E. coli functional biofilms as scaffolds for hydroxyapatite mineralization


DEC 31, 2020


1
ATLAS project finds 12 new species of sea creatures


DEC 30, 2020


0
Observations shed more light on the atmosphere of white dwarf GD 424


DEC 30, 2020


4
Organic meats found to have approximately the same greenhouse impact as regular meats


DEC 30, 2020


18
Designing Dirac vortex topological photonic crystal fibres


DEC 30, 2020


0




Controlling the nanoscale structure of membranes is key for clean water, researchers find


DEC 31, 2020

Stretching diamond for next-generation microelectronics


DEC 31, 2020

Light-responsive E. coli functional biofilms as scaffolds for hydroxyapatite mineralization


DEC 31, 2020

Well-preserved Ice Age woolly rhino found in Siberia


DEC 31, 2020

Largest study of Asia's rivers unearths 800 years of paleoclimate patterns


DEC 30, 2020

The map of nuclear deformation takes the form of a mountain landscape


DEC 30, 2020

Scientists further improve accuracy of directional polarimetric camera


DEC 30, 2020


Relevant PhysicsForums posts

Why is the CO2 level lower in my house than outside?


DEC 29, 2020

Mw 6.4 Quake Croatia


DEC 29, 2020

Mw 6.8, Chile ... NOW


DEC 27, 2020

If the Sahara is caused by the Hadley cell, it should ring the Earth like the Hadley cell, surely?


DEC 27, 2020

Clair Patterson, Measuring Earth's Age, Discovery of Pb contamination


DEC 26, 2020

Why Grid North doesn't agree with True North on maps


DEC 25, 2020

More from Earth Sciences

No comments: