Minor Quakes Rattle Japan and Peru [News]

A late-afternoon earthquake hit the southern Japanese island of Okinawa, about 900 miles (1,400 kilometers) from Tokyo, the U.S. Geological Survey (USGS) says. About an hour and a half later, the USGS also reports, an earthquake shook Peru, 450 miles (725 kilometers) southeast of Lima.Don Blakeman, an earthquake analyst at the USGS, told ScientificAmerican.com that the two Pacific Rim tremors are probably unrelated. "We don't really see evidence for one triggering the other at those distances," he explains. [More]

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