a reply to: whatnext21
The Tasman Sea is a spreading seafloor, NZ and Australia are spreading apart.
The Eastern Australian Continental slope is quite steep (4-5 degrees) and where the Tasman Abyssal Plain butts into it is the deepest part (of the
Although the Tasman Plain looks flat, there is 60 million years of sediment overlaying the rocky floor there.
During the period 2.6 million to 11,700 years ago (Pleistocene period) there is evidence of warping of the Continental Shelf (Phipps 1967), it appears
the continental margin is probably still sinking at a very slow rate.(ref:
Intraplate Volcanism: In Eastern Australia and New Zealand
By R. Wally Johnson
The latest quake, a 3.1 at -25.635, 153.979 is located under the Continental Shelf, closer to the current coastline, 20 or so km SW of the other
quakes (and 10km deep versus 30km for the others), this may indicate a case of subsidence along the self. There is also a fold (trough) running from
Recorder Guyot SW towards Rainbow Beach, where it cuts into the Continental Slope it is 100m deep below the surrounding sea floor, this may indicate
an ancient fault, these latest earthquakes are parallel to this fold.
rightclickviewimage for full size
A Guyot is a flat topped ex-volcano, Recorder is pretty high, just under 4km from the seabed, thats huge. If you look on Google Earth or Satelitte Map
you can see a trail of seamounts running parallel with the current Australian coast, these are called the Tasmantid Guyots, estimated age is 65-2
million years ago (Tertiary period). The oldest guyot's are at the north, the current volcanic hotspot is estimated to now be SW of Tasmania.
GeoAu earthquake Search
Something isn't right, NZ has been really quiet the last month, some of the lowest daily energy releases for years, now this.
Hey the Aussies are always stealing our stuff, Russell Crowe, Pavlova, Phar Lap (a race horse), Split Enz, to name a few, claiming them as Australian
when they were actually from NZ, now they are stealing our earthquakes! LOL
They can have them as far as I'm concerned.
Mines closing down, Ranches being sold off to the Chinese, Floods, Fires, Refugees, Unemployment on the rise, losing two Test series of Cricket to the
Maybe the "Lucky Country"s luck has just about run out.
edit on 0800000021221215 by muzzy because: (no reason given)
0800000021221215 by muzzy because: (no reason given)
Worse case scenerio is part of the Continental Shelf collapses, causing a massive Tsunami which heads east towards me.
What we need is a big picture.
Earthquake History 1910-present Queensland Coast, from GeoAu.
That Red one was a M6.0, off the Barrier Reef (thats why I mentioned this location when the first 5.7 came up)
The set in the glass disk is the present performance.
edit on 0800000021221215 by muzzy because: I see from doing this map, that USGS are using National Geographic Maps
for their Summary location maps.
edit on 0800000021221215 by muzzy because: added another map, showing the fold(fault?)
Maybe the media should consult the Aborigine Elders, they would probably have a perfectly sound explanation for these geological
edit on 0800000021221215 by muzzy because: added another thought