A volcano erupted on an uninhabited island in the Galapagos, Ecuadorian authorities said, spewing lava on the ecologically sensitive environment.

La Cumbre volcano on Fernandina island, one of the youngest in the archipelago, began erupting Sunday evening, Galapagos National Park (PNG) officials said in a statement.

The 1,467 metre high (4,813 feet) volcano has a crack along its south-eastern flank and "a lava flow descends to the coast", PNG added.

The island is home to a number of species including iguanas, penguins, flightless cormorants, snakes and an endemic rat, and has "very important" ecological value, PNG said.

Before the eruption, an earthquake with a magnitude of 4.7 was felt, according to the local Ecuadorian Geophysical Institute, followed by 29 aftershocks.

The volcano also erupted in June 2018.

The unique fauna of the UNESCO-listed Galapagos Islands -- located 1,000 kilometres (620 miles) east of mainland Ecuador -- helped English naturalist Charles Darwin develop his theory of evolution by natural selection.

Thousands face uncertainty as Philippine volcano spews lava
Tanauan, Philippines (AFP) Jan 14, 2020 - Taal volcano in the Philippines could spew lava and ash for weeks, authorities warned Tuesday, leaving thousands in limbo after they fled their homes fearing a massive eruption.

The crater of the volcano exploded to life with towering clouds of ash and jets of red-hot lava on Sunday, forcing those living around the mountain south of Manila to flee to safety.

Many residents abandoned livestock and pets as well as homes full of belongings after authorities sounded an alert warning that an "explosive eruption" could come imminently.

Some 30,000 are currently in shelters.

Gerald Aseoche, 30, fled with his four young children and a few possessions, and has refused to leave them to go to work as the volcano belches out lava and earthquakes tied to the eruption rattle the region.

"I am hoping this won't go on too long because I will lose my job if I can't report to work immediately," Aseoche, a house painter, told AFP at an evacuation centre.

"I can't leave them... family first," he said as he cradled one of his children.

Taal is one of the most active volcanoes in a nation hit periodically by eruptions and earthquakes due to its location on the Pacific "Ring of Fire" -- a zone of intense seismic activity.

The Taal eruption has been putting on a stunning and terrifying display, with lightning crackling through its ash cloud in a poorly understood phenomenon that has been attributed to static electricity.

- Eruptions have lasted months -

Renato Solidum, head of the Philippines' seismological agency, said Taal's previous eruptions have gone on for as long as months so it was impossible to predict an end to the current activity.

However, he said the alert warning of a potentially catastrophic "explosive eruption" may remain in place for weeks, depending on developments.

"We have a protocol of waiting for several days, sometimes two weeks, to make sure that indeed... volcano activity has essentially stopped," he told AFP.

The volcano dramatically burst with activity on Sunday, shooting a massive column of ash kilometres (miles) into the sky that then rained down on the region.

Falling ash pushed aviation officials to temporarily shut down Manila's main international airport, forcing the cancellation of hundreds of flight and stranded tens of thousands of travellers.

Ninoy Aquino International Airport resumed reduced operations on Monday and was gradually recovering on Tuesday, but a backlog of cancelled flights resulted in ongoing pain for travellers.

Taal's last eruption was in 1977, but it has a long history of activity. In 1965 the volcano, which is a popular tourist attraction set in a picturesque lake, killed some 200 people.

The country's most powerful explosion in recent years was the 1991 eruption of Mount Pinatubo, about 100 kilometres northwest of Manila, which killed more than 800 people.

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Ash pours from Philippine volcano, halting flights
Manila (AFP) Jan 12, 2020
The Philippines was on alert Monday for the "explosive eruption" of a volcano south of Manila, which officials said could be imminent after a massive column of ash forced a halt to flights at the capital's main airport. Taal volcano, a popular tourist attraction set in the centre of a picturesque lake, spewed ash, rumbled with earthquakes and exploded with lightning above its crest. Thousands of people living nearby were evacuated from their homes, but other locals weighed whether or not to fl ... read more