02/06/13 - 10:31pm
ANCHORAGE (AP) — Alaska’s Cleveland Volcano is heating up and scientists are on alert in case it sends up an ash cloud that could threaten trans-Pacific flights.
The Alaska Volcano Observatory detected elevated surface temperatures Jan. 24 at Cleveland’s summit. Satellite data obtained last week indicated that a growing lava dome on the floor of the summit crater had reached about 328 feet, or 100 meters, in diameter.
The summit crater itself is nearly 10 times that size, said Chris Waythomas of the U.S. Geological Survey.