rock avalanches

A very large size 5 natural avalanche was observed yesterday up the Murchison Valley in Aoraki/Mt Cook National Park, New Zealand. The avalanche released from Mt Phyllis and crossed the Aida glacier, one of New Zealand’s several glaciers. The crown wall was at least 1.5km (0.9 miles) long and the debris ran about 2km (1.25 miles) onto the flats. It […]