18 mile crack in glaciermeans the birth of a giant ice-berg is imminent

[Paul Ward]

In the picture you are looking down into a crack on the Pine Island Glacier, the crack is at least 18 miles long by about 50-60m down to sea level, the ice then continues under the water for about 8 times this distance.

More including video here on the NASA website:
http://www.nasa.gov/mission_pages/ic...pig-break.html

[webpiter]

A massive iceberg larger than Manhattan has broken away from the floating end of a Greenland glacier this week, an event scientists predicted last autumn.

The giant ice island is 46 square miles (120 square kilometers), and separated from the terminus of the Petermann Glacier, one of Greenland's largest.