The most recent signs were the increase of gas emissions, which reflect shifts in magma properties and activity beneath the volcano. The observatory conducted two flights above the volcano, capturing ...

Volatile substances such as carbon dioxide (CO 2) and water (H 2 O) play a key role in the melting of the Earth's mantle beneath oceanic ridges, where tectonic plates diverge and create new oceanic ...

Mount Spurr near Anchorage has been showing signs of unrest for a year. Now scientists think it's creeping closer to an ...

By the end of the day, about 7 p.m. Pacific Standard Time, data from 16 crystals was collected and analyzed. The data, which was shared with Hawaiian Volcano Observatory, showed that the erupted ...

Evidence of elevated volcanic activity indicate eruption of Alaska's Mount Spurr volcano could happen within weeks or months, federal officials say.

A 2025 volcanic eruption at Mount Spurr near Anchorage is “likely” according to a new bulletin by the Alaska Volcano Observatory. The timing of the eruption and its size remain uncertain, the ...

Magnitude-3.4 at 12:46 a.m. March 11 at 10 miles southeast of Pāhala and depth of 20 miles. Magnitude-3.4 at 4:08 p.m. March 10 at 3 miles west of Puakō and depth of 21 miles.