Mt Taranaki 'overdue' for eruption

Researchers have uncovered evidence suggesting Mt Taranaki is overdue to erupt, possibly blanketing much of the North Island in ash and disrupting power and water supplies, farming and aviation.
Although the 2518m volcano, New Zealand’s second-highest, has shown little or no sign of activity for two centuries, the new research suggests it has erupted at least once every 90 years on average for the past 9000 years, with a major eruption every 500 years.