ANCHORAGE (AP) -- The Alaska Volcano Observatory is warning that the Mount Veniaminof volcano is rumbling and might erupt.
A seismic network began detecting tremors beneath the volcano on Sept. 10, said the observatory's scientist-in-charge Tom Murray. The pulse included one small earthquake about two miles beneath the 7,073-foot caldera.
''Right now, the activity is kind of staying steady, it's not escalating,'' Murray said Tuesday. ''It may even have dropped a little bit from last Friday.''
Satellite photos have not found any sign of steaming or surface changes, Murray said. Observatory contacts in Perryville, a village about 20 miles southwest, have not felt the tiny tremors.
''Typically these things just die back down,'' he added. ''That doesn't mean that it can't still escalate quickly, but we see nothing that indicates that yet.''
Located about 480 miles southwest of Anchorage on the Alaska Peninsula, Veniaminof is one of the largest and most active volcanoes in the Aleutian Arc, with 12 eruptions over the past 200 years. The most recent occurred in 95.
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