Earthquake under mt Ruapehu.

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Techwarrior

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#127425 9-Aug-2013 17:27

Hi all,
What would happen if a magnitude 8+ earthquake happened directly under mt Ruapehu what would the damage be to the surrounding area besides the damage you'd expect from a magnitude 8+ earthquake?

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#874697 9-Aug-2013 17:30

Way too many variables to answer this.

stevenz

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#874698 9-Aug-2013 17:34

If it triggered an eruption, it'd be pretty significant. Otherwise, I'd at least expect most of Ohakune to cease to exist and probably a fair chunk of Taranaki as well.

Anything over 8 in the central North Island would do massive damage whether or not a volcano is involved, especially if it was reasonably shallow.

The Richter scale isn't linear, so a 8 is significantly more than twice as powerful as a 4.

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johnr

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#874700 9-Aug-2013 17:38

Maybe 3 islands instead of 2

SaltyNZ

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#874702 9-Aug-2013 17:41

Techwarrior: Hi all,
What would happen if a magnitude 8+ earthquake happened directly under mt Ruapehu what would the damage be to the surrounding area besides the damage you'd expect from a magnitude 8+ earthquake?

Something like this, I think.

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MikeB4

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#874703 9-Aug-2013 17:41

johnr: Maybe 3 islands instead of 2

more likely to be uplift.

the comms back bone would be screwed

surfisup1000

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#874704 9-Aug-2013 17:46

Techwarrior: Hi all,
What would happen if a magnitude 8+ earthquake happened directly under mt Ruapehu what would the damage be to the surrounding area besides the damage you'd expect from a magnitude 8+ earthquake?

None. Tough as nails in the king country .

wallop

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#874706 9-Aug-2013 18:15

stevenz: If it triggered an eruption, it'd be pretty significant. Otherwise, I'd at least expect most of Ohakune to cease to exist and probably a fair chunk of Taranaki as well.

Anything over 8 in the central North Island would do massive damage whether or not a volcano is involved, especially if it was reasonably shallow.

The Richter scale isn't linear, so a 8 is significantly more than twice as powerful as a 4.

A 8 is a lot more than double a 4. A 5 is 10x a 4 and a 6 10x a 5 so I guess a 8 is 10000 times bigger than a 4. A 4 is about 15 tonnes of tnt, a 8 is 15 megatons according to Wikipedia.

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DjShadow

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#874729 9-Aug-2013 18:58

I'd be concerned it would wake up Lake Taupo volcano

johnr

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#874730 9-Aug-2013 19:02

Could even get banned from GZ

stevenz

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#874732 9-Aug-2013 19:09

I hope it wouldn't break the island into 2, think of the naming issues that'd cause!

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Elpie

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#874926 10-Aug-2013 01:39

DjShadow: I'd be concerned it would wake up Lake Taupo volcano

If that happened there would be few of us left around to worry about it and nobody able to tell anyone about it on Twitter (or Geekzone).

gregmcc

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#874943 10-Aug-2013 06:05

stevenz: I hope it wouldn't break the island into 2, think of the naming issues that'd cause!

North-North island

South-North island

or middle island?

SaltyNZ

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#874945 10-Aug-2013 06:54

gregmcc:
stevenz: I hope it wouldn't break the island into 2, think of the naming issues that'd cause!

North-North island

South-North island

or middle island?

The Mouth Islands and the South Island (the Brits will know why).

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