Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search


Volcanic activity monitored at White Island

Volcanic activity monitored at White Island

26 January 2013 10am                      

Release No: 1
Scientists and Bay of Plenty Civil Defence staff are keeping a watch on White Island off the region’s coast this weekend as seismic activity increases.
GNS scientists noticed that late this week the type of seismic activity at White Island had changed. While the level of volcanic tremor began to decrease, ‘hybrid volcanic earthquakes’ had appeared. Hybrid earthquakes are typically associated with movement of molten material (magma) within an active volcano.
GNS scientists took a gas flight over the volcano yesterday which showed a level of gas emitted was similar to last month. Mud geysering is continuing in the crater lake and earthquake activity remains above background levels.
Civil Defence Emergency Management Group Controller Warwick Murray said the current episode of activity started in August 2012 with explosions and ash emission, and in November a small lava dome appeared.
“Volcanic unrest has been increasing since about January 14. Increased hydrothermal activity in the ‘hot lake’ has been described as some of the most vigorous seen for many years,” he said.
Mr Murray said future eruptions were possible with little or no warning, meaning an increased hazard to visitors to the island.
“Hazards can include the health effects of volcanic gas exposure, respiratory issues, skin and eye sensitivity to acid gases. Explosive eruptions can occur at any time with little or no warning. A high level of caution should be taken if you are visiting White Island.”
“Scientists are not sure what could happen next. Magma could flow underground with no changes in surface activity, there could be more dome building as in November or explosive eruptions and ash emissions, as in August last year,” he said.
“There is little risk to the mainland from this seismic activity, but we understand that people are concerned. Visitors to White Island should ensure that they informed, and must exercise high level of caution. If you are boating near the island throughout the long weekend, monitor marine channels for updates and exercise caution,” Mr Murray said.
Meanwhile, the Volcanic Alert Level for White Island remains at 1, indicating signs of volcanic unrest. The alert level ranges from 0 to 5. Because of the change in activity and increased level of unrest, the Aviation Colour Code has been lifted from yellow to orange. Aviation Colour Codes have four colours – green, yellow, orange, red as a quick reference for planes flying in the area.
GNS Science will continue to closely monitor White Island.


© Scoop Media

Parliament Headlines | Politics Headlines | Regional Headlines



Disobeying The Law: Police Censorship Of Crime Research “An Outrage”

The Green Party is calling on Police Minister Michael Woodhouse to ensure Police scrap controversial contracts that place onerous restrictions on academic researchers’ access to Police data, the Green Party says. More>>


Q+A Transcript: Groser ‘Not Expecting’ Failure At UN Climate Talks

‘I will be very surprised if we don’t get an agreement. I think it’s a completely different situation to Copenhagen for a number of reasons. We’ve got a much more realistic negotiating proposal on the table. Secondly, I think the science has strengthened...’ More>>


Greenpeace Protest:

Climate Talks, Immigration And Housing: PM's Post Cabinet Press Conference

Prime Minister John Key began by talking about his recent attendance at the APEC and ASEAN summits. He segued neatly from the opportunities available in Vietnam to outlining his upcoming itinerary which includes Malta, Paris and Berlin. More>>


After Urgent Law Change: Beneficiaries Urged To Act Immediately

I am hoping that thousands more people will be enabled to lodge their review... people without internet, who don't even realise that this has been happening. If just a fraction of the people on facebook can help others to put in reviews tomorrow it could improve so many more peoples Christmas. More>>


Auckland: Phil Goff To Run For Mayor In 2016

Phil Goff has today announced his decision to stand as an Independent candidate for Mayor of Auckland next year... As Mayor, Phil Goff will focus on a number of issues that directly impact on the lives of Aucklanders, including tackling traffic congestion and increasing the housing supply. More>>


Foreign Affairs: Mike Moore To Step Down As US Ambassador

Yvonne and I are giving notice to MFAT that we will be leaving the Post just before Christmas on the 16th December... I am now the longest serving continuous Ambassador to the US. I didn’t seek this job but felt I should do it because great issues were at stake. The time was ripe for it. More>>


Fox Glacier: Seven Dead In Helicopter Crash

The operation to recover the victims of Saturday’s helicopter crash at Fox Glacier is a technically challenging task calling for specialist skills in an unforgiving environment, says operation commander Inspector John Canning. More>>


Get More From Scoop



Search Scoop  
Powered by Vodafone
NZ independent news