ANCHORAGE, Alaska (AP) — Another volcano in Alaska is heating up, with seismic instruments signaling a possible eruption, scientists said Monday.

Tremors were detected at Pavlof Volcano, 625 miles southwest of Anchorage, according to the Alaska Volcano Observatory. Satellite imagery showed the mountain was “very, very hot,” said John Power, the U.S. Geological Survey scientist in charge at the observatory.