And another earthquake in.... Mexico?

http://news.yahoo.com/s/ap/20110407/ap_on_re_la_am_ca/lt_mexico_earthquake

Coinciding with the major aftershock in Japan today (from 7.1 to 7.4 according to the news reports I've seen) we also have an earthquake in Mexico on the opposite side of the Pacific.  Doesn't look to be as powerful, but it is strange to see it happening at roughly the same time.  I know geologists say the plate interactions are unconnected....  But is it possible they could be wrong?  My next episode will be on the potential for a massive Cascadia Subduction Earthquake off the coast of the West Coast of the US and Canada and how it relates to all these other ones we're seeing around the "Ring of Fire".