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June 7, 2018

How to identify volcanic unrest?

TRM knew the mountain had to be rumbling.  We told you so!

This is a “TRM told you so” post…

Several times lately the fishing pattern has suddenly changed. i.e. Last week one day Unit 2 fisho hooked into 7, landed 4. Next day, same conditions, nothing. Why?

Similar erratic results, or lack of them, were reported by other inmates during the past week.  We know the trout are there but they refuse to cooperate. Strange?

As the inmates were frustrated and bewildered by the lack of consistency we explained to several departing anglers that this happens when the mountain rumbles and we get minor earth tremors. We mere mortals do not feel them but the trout do. Their lateral line is far more sensitive than ours and they get spooked. We only find out later. 

Of course they imagine SWMBO (She Who Must Be Obeyed manages the motel and anything else She decides to manage locally) just makes up such tales to encourage them back again..  Possibly true.

But now I have just read confirmation that over the last week Mt. Ruapehu has been experiencing “minor volcanic unrest” and the Crater Lake has started heating at a rate of 1 degree a day – see press release below.

Wow… A reminder that volcanic eruptions can occur with little or no warning.  So can trout hook-up rates. 

Fortunately, instead of relying on scientists who are always so wise after a eruption event, we have our own early warning system in place.  Trout!  OK? 

Some perceptive fishos will have already identified the tiny fault in our warning system.  Nobody has interviewed the trout yet.  But we can tell that they know… 

I wonder if SWMBO should report TRM catch rates to the boffins at GNS Science, to warn them?

Mt Ruapehu experiencing ‘minor volcanic unrest’, Crater Lake’s temperature rising 

The North Island’s largest mountain Mt Ruapehu is currently experiencing a “minor volcanic unrest”, with an increasing temperature on its Crater Lake over the past week.

Mt Ruapehu’s crater lake.

Source: 1 NEWS

GNS Science who produced the assessment of Mt Ruapehu said a Volcanic Alert Level 1 is in place – which is the lowest alert level for volcanoes.

GNS says over the past two months the lake has cooled to 20 degrees, but since Tuesday last week it has started heating again at a rate of 1 degree per day.

Mt Ruapehu is also experiencing an increase in volcanic tremor, and while GNS says the mountain doesn’t show any “unusual signs” of unrest they say it is a useful reminder that eruptions can occur with little or no warning.

Volcanic unrest hazards, which are possible from a Volcanic Alert Level 1, occur on and near the volcano.

They may include: steam eruptions, volcanic gases, earthquakes, landslides, uplift, subsidence, changes to hot springs, and/or mudflows.

GNS hopes to collect water and gas samples from Mt Ruapehu’s Crater Lake this week.

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