[KathyKeegan]

(05-18-2015, 09:51 PM)Skywise Wrote:

(05-18-2015, 06:48 AM)KathyKeegan Wrote: Is that close enough to India yet? It just had a 4.9 southwest of India.

If you're asking, is the quake on the Carlsberg Ridge related to the Nepal quake? Nothing wrong with questions. It's how we learn.

But really, no relation. It's over 2,000 miles away.

The Carlsberg ridge is a spreading center where the crust pulls apart and mantle magma wells up to form new crust. Quakes like this are pretty typical of mid ocean ridges. They can get quite big, too, especially along all the transform faults that break up the ridge line.

The Nepal quake, and the Himalaya in general, are on the other side of the Indian Plate. The tectonics there are cause by the subduction of the plate. It's a whole different ball game.

This picture is from: http://en.wikipedia.org/wiki/Mid-ocean_ridge


The quake you ask about would be on the ridge in the center of the diagram, whereas the Nepal quakes and Himalaya are on either of the trenches off to the side - on the other side of the tectonic plate they are on.

Brian

Ok, do the mid ocean ridges usually have such a cocktail party as they are having now? Mid Atlantic, South Atlantic, Mid Indian, North Pacific, West Chile Rise, somewhere south of Tonga, Western Indian-antarctic Ridge, the Galapagos, are all reeling around as if drunk on their ass in numbers as high as mid to upper 5's in some cases. It's just that they seem to be adjusting to the big ones in Nepal with some staggering around themselves. I'm not talking about the volcanoes puffing away this time.