Arctic ice on the run
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This image — called a “visualization” — shows the extent of Arctic sea ice on August 26, 2012, the day the sea ice dipped to the smallest extent ever recorded in more than three decades of satellite measurements. (NASA Goddard Space Flight Center photo)
Every summer the Arctic ice cap melts down to what scientists call its “minimum” before colder weather builds the ice cover back up. The size of this minimum remains in a long-term decline. The extent on August 26, 2012 broke the previous record set on September 18, 2007. The line on the image shows the average minimum extent from the period covering 1979-2010, as measured by satellites. According to scientists from NASA and the National Snow and Ice Data Center, the 2012 melt season could still continue for several weeks.
For more information on this image, and links to additional information on arctic sea ice, visit the NASA website.
An earthquake shook Southeast Alaska just before 3 a.m. Friday. The preliminary magnitude 6.0 temblor was centered about 96 miles west of Juneau, according to the Alaska Earthquake Information Center
. It struck at a depth of about 6.2 miles. A 5.7 magnitude aftershock was felt about a minute later. No tsunami was expected, according to the National Tsunami Warning Center. This is a developing story. Check back for details. more
Friday morning's earthquake near Elfin Cove and Pelican has damaged an undersea internet fiber. ACS services are impaired, including lines used to feed Raven Radio's signal to translator communities and web stream. The signals will be restored when ACS completes repairs. No timeline has been released, but updates will be posted here. more