Another Earthquake in New Zealand

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Re: Another Earthquake in New Zealand

Post by Rockhopper on Sat Nov 19, 2016 4:13 pm

Very Complex 'Quake!

New Zealand's GeoNet has revised their initial magnitude of the November 13, 2016 Kaikoura earthquake from M7.5 to M7.8. The agency added that early indications show this was one of the most complex earthquakes ever recorded on land.

"This complexity means we have had to take extraordinary efforts to determine the magnitude, depth, and locations," the agency said.

The very long time it took for the faults to rupture (over one minute) meant that the standard methods of calculating magnitude were insufficient to capture the full energy released.

Due to the size of the quakes, GeoNet gathered data from their entire network of seismic stations. All of these stations would not normally need to be included in magnitude estimates.

"Based on all ongoing efforts, we can say with some confidence that the earthquake was an M7.8. This is consistent with estimates from several other international agencies, specifically the USGS. Their early model provided us important information and we used all our additional data sets to confirm the magnitude."

"The new magnitude just tells us what we think most people who felt the earthquake already know: it was powerful, and went on for a long time over a large distance. It doesn’t change what happened but it does provide us with more knowledge about how significant the event was."

From here.

Tim.
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Re: Another Earthquake in New Zealand

Post by Stargate on Sat Nov 19, 2016 8:11 pm

Earth definitely changing be it man made or God made.

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Re: Another Earthquake in New Zealand

Post by Rogue on Fri Nov 25, 2016 8:17 am


Sounds like a number of buldings are set for demolition in Wellington due to the quake, and still talk of a large aftershock being possible.
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Re: Another Earthquake in New Zealand

Post by Rockhopper on Sat Nov 26, 2016 3:25 pm

The two biggest buildings in Welly that need to be demolished are the HQ of the IRS and the spy agency SIS, something very freudian there!

Kekerengu Fault (just inland of Kaikoura) rupture via drone;



Kaikoura is the Crayfish town on the mainland (Chatham Islands is the capital of crayfishing) and the name implies that; Kai=food/feast and Koura=crayfish.

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