On Feb 22, 2011, at 5:16 PM, Tanya Love wrote: > Shit Dave, are you guys ok? It is horrible to watch, I am glued to the tv, > and have abc news streaming on my second monitor as I am sitting here > working. > > Can you explain what the deal is with liquefaction? It looks like an > amazing phenomenon I have seen it all over the media and never heard of it > before now...
Wikipedia probably has a better explanation, but in short, if you have water in the some types of soil, and you shake the soil (earthquake), the dirt and water will separate, and in effect dry land will become quicksand, as the soil liquefies. There are major concerns in the San Francisco bay area about this, because there is a lot of land that was "reclaimed" from the bay in a manner, that was later discovered to be susceptible to liquefaction in earthquakes. Now that I've answered your question, undoubtably with many mistakes, someone can post the correct description. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
