Tuesday, June 8, 2010

Dynamic Earth

Article

In this article, they explain that the earth 'jiggles' in a random walk on a very small scale. They use my favourite thing, that 'Everything is fractal!". I've written quite a bit on this. But really, there is no such thing as a solid block of granite, even though those nuclear waste people imagine there is. All the rock is full of fractures, and they are full of fluids. As the fluids flow, there are little shifts. In a big fault zone, such as Hamilton, there is a concentration of fractures, and an intense fluid flow. That's when we have earthquakes. But 'stable' zones have little silent 'teensy quakes' all the time.


5 comments:

Anonymous said...

Are you saying hamilton could have a major earthquake?

Harold Asmis said...

I'm always saying that. Look in 'Geofish clarified' on the left column.

Anonymous said...

How big an earthquake do you think is possible in Hamilton?

Harold Asmis said...

Very good chance of an M5.5, somewhat remote chance for an M6.0, and 1 in 10,000 for an M7.

Anonymous said...

Thanks for the quick response.

Is that M7 an upper bound and is that a 1 in 10,000 chance per year?