Video: Tongariro spews ash
Tue, 07 Aug 2012 2:27a.m.
By 3 News online staff / NZN
Mt Tongariro has erupted for the first time in more than a century, spewing ash and prompting a threat warning for the central North Island.
The eruption occurred at 11:50pm on Monday, surprising geologists who say it was "unexpected".
Civil Defence said the volcanic activity could pose a threat to Waikato, Hawke's Bay, Gisborne, Manawatu, Wanganui, Bay of Plenty and Taranaki.
There have been no reports of injuries or damage. Hawke's Bay Civil Defence is telling residents to disconnect water tanks and stay indoors, and warning there could be power shortages in the area.
Police say the wider community is not at risk, and there is no need for the wider community to remain inside and close doors and windows.
They say the only risk is to people in the local vicinity of the mountain who have a predisposition to respiratory issues, and water supplies to the rural community in the area.
Police and the Department of Conservation were preparing to check nearby tramping huts at first light on Tuesday. Civil Defence advised there had been some self-evacuation by locals, but authorities have not ordered an evacuation.
A joint agency incident management centre, involving local and regional Civil Defence, police and DOC personnel, has been established at the Whakapapa Department of Conservation Visitor Centre in Tongariro National Park.
WITNESSES DESCRIBE EXPLOSIONS, ASH CLOUD
Police were alerted to the eruption shortly before midnight by a member of the public who reported seeing "flame-like explosions" and a cloud of ash coming from "a new hole in the side of the mountain".
They saw the eruption on Mt Tongariro's northern face, from his location on State Highway 46 near Lake Rotoaira, west of Rangipo.
Motorist Clayton Bolt told RadioLIVE a massive cloud was visible over the mountain, and was drifting toward the Napier region.
Truckie Tama Coker told Fairfax there was a "big flash", then it began "raining sand". Visibility was down to a matter of metres.
"I could just see the yellow glare on the mountain," Mr Coker told Fairfax. "I only had visibility of about 10 to 15 feet in front of me. It was a bit scary.
"It's something I'll probably never see again in my lifetime."
Richard Stevenson lives in the Napier suburb of Greenmeadows, about 200km away from Mount Tongariro:
"There's quite a strong sulphur smell," he told RadioLIVE. "We have washing out overnight because it was supposed to be a good day, so we had to redo that 'cause it smells, and we had a little bit of ash on the car."
Hamilton residents are also reporting a strong sulphuric aroma, with many using handkerchiefs to cover their faces outdoors.
John Ngawati lives on State Highway 46 in the shadow of Mt Tongariro, and made the decision to evacuate his family. He told RadioLIVE he was woken by a rumbling sound, and looked out to see the eruption in full flight.
"I went outside and there was this huge plume of ash," he says. "It looked like an electrical storm was going off in it. By this time the kids woke up, and it was time to get out of there."
Ann Lambert from the Rainbow Motel in Tokaanu says the eruption woke her overnight.
"I heard this very loud rumbling noise and I thought it was a truck, and I got up to see what on earth was going on," she says. "I pulled back the drape and saw this huge plume in the sky, with flames and sparks and things coming out of it."
Mrs Lambert says the plume was made up of smoke and dust and had "red flashes" that resembled flames. She initially thought Mt Ruapehu had erupted.
Truck driver Bryn Rodda told Radio NZ the ash on the Desert Road, State Highway 1, was thick with poor visibility before it was closed early on Tuesday.
"I could see this big cloud - it looked like a fist, basically, at an angle across the sky, and about the wrist section of the fist there was an orange ball of flash that I saw."
AVIATION ALERT RAISED, THEN LOWERED
GNS Science this morning raised its aviation colour code to red, meaning it is likely a significant amount of ash was emitted into the atmosphere, but has since pushed it back down to orange.
"Observations of Mt Tongariro this morning by GNS Science are that eruption activity has subsided," GNS reported just after 12pm.
"There have been no lahars or pyroclastic flows or lava flows."
The eruption itself is believed to have lasted only about a minute or two.
Prime Minister John Key told Firstline this morning the eruption was "fairly moderate, but there's been ash and rock expelled from Tongariro."
If the situation deteriorated, he said Civil Defence would take control.
"Civil Defence take responsibility of that and they run the full operation, so at some point if it progressed to that level then the normal activation comes in.
"Basically they take over and have responsibility for everyone in assuring that all the emergency services and the like are deployed."
Several Air New Zealand flights to airports east of Mt Tongariro, including Gisborne, Rotorua, Taupo and Napier, along with Palmerston North, were delayed or cancelled following the eruption, affecting flights to and from Auckland, Wellington and Christchurch.
The airline says it will not fly any planes through ash.
"We will not fly through ash and are constantly taking guidance from the Civil Aviation Authority (CAA) and the MetService to ensure we can continue to carry passengers where safe routes and altitudes are available," says Capt David Morgan, general manager of airline operations and safety.
Hawke's Bay Airport has reportedly closed until further notice.
Police initially closed the Desert Road (State Highway 1) between Rangipo and Waiouru and State Highway 46 west of Rangipo, both of which have now reopened. Police received reports of light ash falling on both roads.
They had also received reports of ash falling as far east as State Highway 5 near Te Haroto and onto Napier itself.
Kevin Cannell, chair of National Park School's board of trustees says classes are running today, but there will be no skiing because of rain.
Police say motorists should expect delays.
Napier Civil Defence is urging residents to sign up to its text alert service by sending 'follow napier_cd' to 8987. The alerts only work on the Vodafone and Telecom networks, however.
BUSINESS AS USUAL FOR SKI FIELDS
Manager of the Turoa ski field on Mt Ruapehu Chris Thrupp says they're open for business.
"At this stage [we] are open to business as usual this morning," says Mr Thrupp. "We’ve had no advice from the Department of Conservation, police or GNS Science that there is any increased risk on Mt Ruapheu. They are three independent volcanoes and we are some distance away.
"Ash is probably the concern at this stage if the wind direction changes, which we don’t think it will, and blows ash towards Ruapehu - then the problem we’ll have to deal with is ash on the snow."
He says people visiting the area are anxious, but for the locals, its "reasonably normal… Eruptions aren't uncommon."
Whakapapa ski field is also unaffected by ash at this stage.
Huts and crossings on the mountain have been closed by DOC. Whanganui area manager Nick Peat said they would be working with police and local iwi Ngati Tuwharetoa and taking a "precautionary" approach.
LINK TO OTHER VOLCANIC ACTIVITY?
GNS volcanologist Michael Rosenberg has ruled out any link between last night's eruption and recent activity at another volcano, White Island in the Bay of Plenty.
White Island's alert level was raised on Monday.
Mt Tongariro last eruption lasted from November 1896 until October 1897. Small earthquakes were recorded beneath the volcano late last month.
Mr Rosenberg is concerned there was no warning a full eruption was coming.
"It's unexpected, but it seems to have been a fairly small eruption," he told RadioLIVE. "We're not particularly worried at the moment because the eruption seems to have quietened down - obviously it can change at any time.
"All we can do is monitor the volcano by monitoring the seismic activity."
Because Mt Tongariro has been quiet for so long, no one really knows what could happen next.
"This has taken us by surprise," says Mr Rosenberg. "It's gone from some little earthquakes that seemed to be tailing off, then all of a sudden this has gone boom.
"We really didn't expect that there would be an eruption apparently out of nowhere… It's possible that this could be the start of a much longer episode, or alternatively it could be the end. We just don't know."
Volcanologist Brad Scott says the eruption was driven by steam, not molten rock. There were changes noted in the composition of gases coming out of Mt Tongariro in the week leading up to the eruption, but no increase in background seismic activity.
"We're not seeing more energy being released, and we didn't see a lot of energy being released before the eruption," says Mr Scott, who wouldn't rule out further events.
"I wouldn't be surprised if there are more small-scale hydrothermal-driven eruptions."
The weather is preventing flights over the mountain to see exactly what has happened, but it's suspected the Te Maari craters are involved.
TONGARIRO FACTS AND FIGURES
NZN / 3 News
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11/08/2012 1:03:55 a.m.
Hello i am from that house opposite that farm on highway 46 turangi.Is the mountain going to erupt again.The house where my nephew mike was interveiwed is over a100YEARS OLD. It belonged to my grandfather Te Ngoi Patena Mariu.I live in Australia and when i saw the roof i shared a few tears.My nephew Mike Pine said we were the only two homes that got ash all over the place.My thoughts are forall our families of highways 46 and 47 please stay safe love you all from the June Whanau Australia a.nd also to those people who are keeping a close watch on the mountain please stay safe
8/08/2012 6:03:38 p.m.
Brian Babbini, Big Island, Hawaii wrote:
I predicted this eruption over a week ago. USGS AVO and HVO have emails records to verify my prediction. Mahalo.
7/08/2012 11:39:03 p.m.
Donna Burns wrote:
With the "FRACKING" going on what would one expect, there was/is the "EARTHQUAKES", now this, more devastation to come. Thank the greed of John Keys and the corporate thugs to for the premature awakenings. There were previous warning's to all, what may/would happen.
7/08/2012 6:17:16 p.m.
was that a sign for global warming? that is freaky because were i stay in south auckland otara we are living on top of one..
7/08/2012 4:52:30 p.m.
@Mike why do you post comments on something that has nothing to do with what people are actually talking about! and at least Iwi are tryna do something to try and stop OUR yes all NZ'ers ASSETS!
7/08/2012 2:27:01 p.m.
The Bull wrote:
Maybe mother nature is just offsetting the weight of all those olympic medals before they come home??
7/08/2012 12:44:46 p.m.
Once when I was in Taupo I went into the centre that shows what happens to the planet in eruptions and earthquakes.From what I recall White Island, Lake Taupo and the 3 mountains including Tongariro are all connected underground and could actually set off a chain of events between them. I wouldn't be so sure this was a one off and a coincidence that Tongariro and White Island rumbled around the same time last night, I would take it a bit moreseriously than that.
7/08/2012 12:27:27 p.m.
I think that it may not be safe and people around the area should evacuate breathing all that i not good for the lungs.
You know what happned when the volcano in iceland erupted
7/08/2012 12:26:48 p.m.
Funny Guy - I agree, mother nature is getting pretty angry and I think we haven't seen the big event yet. By the way things are going in this country you won't be able to say where this big event will take place but it will come. The ground in this country has been to unsettled for too long now so there is a biggie brewing for sure and alot of us believe that. As for the 21st of December those who believe that is the end should start giving all their belongings and money to those who don't believe because if you are that sure the end is near then why keep it all? I think we will have a change in consiousness and maybe start to really care about the world and everyone in it. The world isn't going to end and I don't think it is the rising of Jesus either, just a new faze for human beings. The natural disasters happening everywhere in the world are just the planet reshaping to cope with all the overloaded areas so we don't fall off our axis totally. Argh the end is near.............Not.
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