VOLCANO

Alaska officials raise alert level from "watch" to "warning" as fears of eruption grow.

Mount Sangeang in Indonesia erupts, spewing thick clouds of ash into atmosphere.

Icelandic eruption could cause extreme climate change and toxic gas cloud, according to Cabinet Office report

Flights to and from Indonesia, Singapore and Thailand resume after Mount Kelud's volcanic eruption.

Icelandic scientists accidentally strike magma and attempt to harness its geothermal heat.

Disaster management agency says three more volcanoes at high risk of erupting on North Sumatra archipelago.

Volcano had been dormant for 400 years before 2010.

Indonesian volcano causes havoc forcing evacuation of people around Mt Sinabung.

Mount Sinabung on the western island of Sumatra has exploded, sending red-hot rocks and ash 2,000 metres in the air.

Scientists discover previously unknown magma chamber deep below Kilauea.

In pictures: Indonesia's Mount Sinabung continues to erupt, forcing thousands to flee their homes.

Supervolcanos can erupt spontaneously without earthquake triggers, say scientists.

Authorities warn locals to stay away from Sinabung after volcano erupts 77 times.

Sicily's Catania airport forced to close because of huge plumes of ash in the sky.

Scientist findings show magma chamber below Yellowstone to be 'even more colossal' than thought

Scientists say Lake Toba's magma chamber must be studied further due to eruption risk.

Europe's most active volcano, Mount Etna has erupted, shooting a plume of ash from the summit across much of Sicily.

Two powerful quakes of magnitude more than 8 each struck Aceh province in the Southeast Asian nation Indonesia, one of the places sitting on the 'Pacific Ring of Fire' region. But what is Pacific Ring of Fire?

Italy's volcano erupts again but for residents of Sicily it is business as usual.