Published February 25, 2011 06:33 AM

New Zealand quake sends 30 million tons of ice loose from glacier

The 6.3 magnitude earthquake that struck New Zealand on Tuesday, killing at least 75 people in Christchurch, also shook loose 30 million tons of ice from the nation's longest glacier, sending boulders of ice into a nearby lake.


Tour boat operators in the area said parts of the Tasman Glacier calved into the Tasman Lake immediately after the quake, breaking into smaller icebergs and causing 3.5 meter-high (11-foot) waves.

"It was approximately 30 million tons of ice, it's just a massive, massive, massive scale," said Denis Callesen, the General Manager of Tourism at Aoraki Mount Cook Alpine Village.

He added the ice fall or 'calving' was expected, given the large amount of recent rain, the changing of the dynamics of the lake and the La Nina weather phenomenon, a factor in higher levels of rainfall.

"We have known for some weeks that an event was coming, what is just a complete curve ball, left field, is that it was the earthquake that set it off and caused the calving," Callesen told Reuters.

Photo shows the iceberg, broken off from the glacier after Tuesday's earthquake, in the Tasman Lake, 200km (124 miles) southeast of Christchurch in this handout photograph released February 23, 2011. Credit: Reuters

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