Saturday, January 24, 2009

Lancaster earthquakes - how dense are they?

Or, after another entry on the Lancaster earthquake, you might be asking how dense is Rob?


The gray color suggests that there is about 0.1 magnitude 5 earthquakes in that region per year, or only 1 every 10 years (which actually seems a bit high to me). But in the Lancaster area, colored white, the frequency is even less. This actually isn't a very interesting diagram here because of the paucity of large earthquakes. We'll have to look at this type of diagram later for a larger earthquake, presumably in some other part of the world near a plate boundary.

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