posted on Jan, 21 2011 @ 02:50 PM
reply to post by MoorfNZ
Not sure about the Chatham Rise, from memory there have been half a dozen earthquakes along there in the last 12 months but didn't seem unusual. Th
biggest quake in the CI itself was a 5 in 1999 and a 5 in 2000 and there was a 5 on the Rise between NZ & CI in 1981, a 5 to the north of the Rise in
1961 and two of them in 1960 and 1 in 1941, info gets sparse prior to that.
I can't find the press release but someone in the know in the early days after the quake said that the Plate Boundry of the Pacific/Australian Plate
had shifted down from Marlborough to Canterbury. Was it Quigley?
Actually if you look on Google Earth, and trace the Greendale Fault up through Christchurch and out to sea to the NE it lines right up with the
Pegusus Canyon and the Kaikoura Canyon Greendale Fault Trace KMZ
I think that could be the spot to watch for future big quakes, there were 2x5's o/s Kaikoura in 2008 on the same day, that may have been the start of
your boundry shift
All just theory though
edit on 21-1-2011 by muzzy because: (no reason given)