Tuesday, May 22, 2012

Italy earthquake shallow thrust


Ok, they are calling this earthquake 'weird', but it is the main mechanism for us in ENA.  A shallow thrust comes as a result of high horizontal stresses.  In this geology, Italy is jamming into the Alps.  It should have high stresses and earthquakes, unless it is jam, which is like North India.

If you were right on top of the 'Hammer Zone', then you would have experienced a very high PGV (peak ground velocity).  That zone would be quite small for an M6, so we may not have readings for it.  The area has been quiet for hundreds of years.  I suspect this will be the start of a series, much like Christchurch, but I'm not recommending an investment in cheese futures!  (They'll probably stink, much like FB). :)

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