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.

GNS Science volcanologist Craig Miller is joining us at 3pm for a live chat about the eruption at White Island this morning.

White Island sightseers are being warned another eruption could occur "at any time with little or no warning''.

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.

Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.

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.

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.

White Island is just the tip of a submarine mountain that rises a staggering 1.6km from the sea floor, its fiery innards sealed shut from the surrounding Pacific Ocean.

The closest you will ever get to lava going into the ocean, Kilauea Volcano on Hawaii's Big island puts on an amazing show on 10. Filmed from a helicopter and boat at extremely close range, so close that the ocean was boiling. Filmed by Breaking News/Geoff Mackley.

A supervolcano forming north of New Zealand could spell the end of the world - but there is no need to panic, it won't happen for at least 100 million years.

The nzherald.co.nz visited White Island in February 2013 as tourists who are continuing to flock to the volcano are fascinated by the up-close views as the island continues to produce "vigorous bursts" of mud, rock steam and gas up to 100m high.

White Island has been spewing mud and rock several tens of metres into the air in the past few days, as GNS Science warns of a greater risk to visitors.