Experts say new findings don't necessarily increase the 'Yellowstone hazard' – despite claims it could be due a catastrophic eruption.

Powerful bursts of hot ash and gravel erupted from a rumbling volcano in western Indonesia early Monday (local time), sending panicked villagers streaming down the sides of the mountain.

A volcanic eruption has raised an island in the seas to the far south of Tokyo, the Japanese coast guard and earthquake experts said.

Mount Etna, Europe's most active volcano, has erupted again, lighting up the sky over much of eastern Sicily and shooting up a towering column of ash.

Mt Sinabung in north Sumatra has been spewing ash and lava 4km into the sky this week, forcing up to 4,300 people to evacuate.

White Island has remained quiet overnight following yesterday's eruption, GeoNet says, but the activity could be part of a bigger sequence.

Civil Defence will monitor White Island (Whakari) following a small eruption which could be part of a sequence leading to a bigger event.

Mount Tongariro has been rattled by numerous small earthquakes in the past few weeks, which could spark an increase in volcanic activity, GNS Science says.

GNS scientists are confident a rise in activity at White Island isn't connected to this week's earthquakes in Cook Strait.

A volcanic alert was issued last night on White Island, near the Bay of Plenty, following an increase in minor tremor levels.

Meet Molly Ambrose, 10-year-old Taranaki schoolgirl and the world’s youngest-known volcano chaser.

Is it any wonder Auckland Council is having a hard time selling the Unitary Plan to the rest of us?

Should we protect the views, writes Brian Rudman, or slip in a few apartments as some act of reconciliation. Is it any wonder the majority of councillors have doubts.

Sweeping views of Auckland's volcanic cones risk being violated by new planning rules, critics say.

To geologists perhaps, six years is nothing, writes Brian Rudman. But for those of us on human time, it seems an inordinate amount of time to need to hatch the plan.

Rangitoto may be much older - and more explosive - than previously believed.

A new discovery that shows that Rangitoto erupted "semi-continuously" for about 1000 years is prompting scientists to re-think what the volcano could do in the future.

Giant craters found on the sea floor off the South Island coast may be the world's biggest pockmarks, say scientists.

As they did on the afternoon of March 17, tens of thousands of Aucklanders take to Facebook and Twitter to express their amazement that their seemingly quake-free city has had a rumble.