Eruption of 3 volcanoes has scientists asking questions

PUZZLE: Is there a common thread or were events just coincidence?How likely is it that three neighboring volcanoes would all erupt at the same time — as the Kasatochi, Okmok and Cleveland volcanoes in the Aleutians did this summer?About as likely as a storm that only appears once in a thousand years, says Anchorage volcanologist [...] continue reading world news