cbus20122 says:

December 7, 2012 at 20:02


I’m curious to hear Bruce’s take on the NZ 6.3 quake.

I did a quick overlay of the current quake with Bruce’s older image of the 10 year history of TVZ quakes (I believe it was only shallow quakes however). The location of the new quake is annotated by a large orange dot.

See image below (perhaps lurking could make it viewable to all).
[link to i.imgur.com]

I’m not one to make sense of this or try to interpret it. I could add some very light and non-scientific speculation if there were data on deep quakes, but I’m not sure how to get that information on the NZ Geonet.

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cbus20122 says:

December 7, 2012 at 20:30


And Another image using the same overlay with denotated areas from where Caldera forming eruptions took place. As is relatively obvious, the lighter circles annotate the rough areas in which calderas forming eruptions formed.

[link to i.imgur.com]

[link to volcanocafe.wordpress.com]