Re: Re: Quakes in Nevada worry experts

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:Vivid word picture!Personally, I tend to think of flat land as flat, forgetting that what is deep down is often very different.rl'My cat Rusty is a servant of the Living God....'adapted from a poem by SmartFrom: environmental1st2003 <no_reply >Subject: Re: Quakes in Nevada worry expertsTo: FAMSecretSociety Received: Sunday, April 17, 2011, 11:39 PM

There is more to the article than you posted. One paragraph says that these quakes are happening on an unknown fault.

The thing to remember about the entire west coast, and also some of the western interior states, is that if you blew away topsoil, sand, and tens of thousands of years of sediment, you'd see something that looked like an uneven accordian. Imagine dropping a piece of glass in the shape of the western states and then reassembling the pieces in the general shape of those states. All the faults would be fully evident. Cover that with a layer of dust that fills in the cracks and it would look like a single piece of glass again.

Now if you've got something under that glass, like a board, and you tilt that board, or shake it, those pieces pull apart and/or grind together and/or scatter. That may be happening now that activity has picked up on and around the Pacific plate.

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http://www.mynews4.com/story.php?id=41029 & n=122

Quote:

Swarm of Quakes have Experts Concerned

Page Last Updated: Friday April 15, 2011 10:09am PDT

Nevada Seismologists are keeping a close eye on an area southwest of Hawthorne, Nevada where hundreds of earthquakes have been detected since Sunday.

" It's a little bit concerning in a sense.. The largest earthquakes in these sequences are pretty large in size." Graham Kent is Director of Nevada Seismological Laboratory at the University of Nevada Reno. He says there have been hundreds of earthquakes southwest of Hawthorne over the past few days. The largest-- recorded at a 4.4 in size.

"These are the biggest in a sequence we've seen at least in the last couple of years." Kent says unlike the 2008 quakes in Somersett that damaged so many homes, these earthquakes are fortunately not underneath a community.

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