Updated April 9, 2021 at 5:32 PM ET
A volcano on the eastern Caribbean island of St. Vincent has experienced an "explosive eruption," according to officials there, hours after increased activity at the mountain triggered a mandatory evacuation of nearby residents.
On Friday morning, St. Vincent's National Emergency Management Organization, or NEMO, announced in a tweet that the volcano, known as La Soufrière, had erupted hours after it began spewing ash and steam. There were no immediate reports of casualties from the eruption.
At least one smaller explosion occurred Friday afternoon.
Social media posts of video taken by witnesses on the ground showed plumes of ash rising from the volcano.
The la Soufiere Volcano in St. Vincent and the Grenadines is experiencing an explosive eruption at this moment @volcanodiscover @cnnbrk @CBCNews #volcano #eruption @MSN #MSNBC pic.twitter.com/RcHoLTENii
— kenville Horne (@kenvilleHorne) April 9, 2021
On its Facebook page, NEMO said the eruption occurred at 8:40 a.m. local time.
"Ash plumes of up to 8 km [5 miles] were observed," it said. "Ash fall has been recorded at the Argyle International Airport."
"All persons in the red volcano hazard zone are asked to evacuate immediately," NEMO said.
St. Vincent and the Grenadines has a population of 110,000. While most live on the main island of St. Vincent around the capital of Kingstown, the population is spread over three dozen islands.
On Thursday afternoon, after days of increased seismic activity associated with La Soufrière volcano, emergency management officials raised the alert level to red, announcing a vessel had been "dispatched to the Leeward side of the island to move residents in the red zone who are in harm's way," the agency said in a tweet.
Residents were being evacuated from the northeast and northwest of the island effective immediately, St. Vincent and the Grenadines Prime Minister Ralph Gonsalves announced in a news conference Thursday.
I have issued an evacuation order to all residents living in the RED ZONES on the North East and the North West of the island. All residents are asked to act accordingly with immediate effect to ensure their safety and that of their families. pic.twitter.com/AJQlCDtOPg
— Ralph Gonsalves (@ComradeRalph) April 8, 2021
Crowds of masked people were captured Thursday on cellphone video carrying backpacks and plastic bags containing what appear to be some of their belongings. Lines of cars were seen crowding a narrow road out of the danger area.
People would be boarded onto a Royal Caribbean cruise ship heading to the island, NEMO said, adding it was also coordinating removal efforts by land.
In a joint statement Thursday, Royal Caribbean and Celebrity Cruises said they were "sending ships to St. Vincent in the Caribbean to evacuate residents."
"Both cruise lines are working closely with St. Vincent authorities to assist residents most at risk. Royal Caribbean International's Serenade of the Seas and Celebrity Cruises' Celebrity Reflection are on their way to the island nation and are expected to arrive later this evening to assist with evacuation efforts," according to the statement, adding that precautions would be taken "to protect the health and safety of the crew and passengers who board our ships."
Gonsalves said people who wish to board a rescue cruise ship or who are granted temporary refuge on any nearby islands will have to be vaccinated.
The neighboring islands of St. Lucia and Grenada, as well as Barbados and Antigua, have agreed to take refugees from St. Vincent, according to the AP.
An estimated 16,000 residents live in the red zone and will have to be removed, Erouscilla Joseph, director of the University of the West Indies Seismic Research Centre, told The Associated Press.
In a telephone interview with the AP, Joseph said heavy ash fall was reported in communities around the volcano and that "more explosions could occur."
In the coastal town of Barrouallie, about 9 miles from the volcano, evacuees made their way toward shelters carrying their belongings in backpacks, duffel bags and shopping bags, the AP reported. Some are expected to board the cruise ships or to take up offers of refuge on neighboring islands.
The premier of Montserrat met with advisers Friday "to explore what options are possible to provide humanitarian, technical and/or in-kind contributions to help" St. Vincent.
Jamaican opposition leader Mark Golding tweeted late Thursday that he'd spoken with Gonsalves and that they had discussed the "serious challenges ahead" for St. Vincent. Golding said his country "must assist as best we can to help our Vincentian family get through this!"
La Soufrière, which means "sulfur outlet" in French, last erupted in 1979, the same year the island chain, known officially as St. Vincent and the Grenadines, gained independence from the United Kingdom. The eruption lasted weeks, generating ash falls, pyroclastic flows and mudflows, according to the Seismic Research Centre. However, prior warning of the eruption allowed an evacuation that prevented any casualties.
The mountain also erupted in 1718, 1812, 1814 and 1902-03. The 1902 eruption killed some 1,600 people.
The eastern Caribbean is an area of heightened seismic and volcanic activity. Beginning in 1995 and continuing for several years, volcanic eruptions on Montserrat forced most of the population to abandon the island.
An eruption of Martinique's Mount Pelée in 1902 wiped out the town of St. Pierre, killing an estimated 29,000 people. It remains among the deadliest volcanic eruptions in history.
Near the southern tip of the Grenadines chain, another undersea volcano, known as Kick 'Em Jenny, has been active in recent years.
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