Volcano Layers Cross-Section Display Poster

WATCH LIVE: Hawaii's Kilauea volcano spews lava during an eruption. | ABC News

🚨Alaska’s Ring of Fire is active The Alaska Volcano Observatory currently has three volcanoes on alert at the same time, all sitting on the Aleutian arc. First, Great Sitkin Volcano. Lava has been slowly erupting inside its summit crater since 2021, filling most of the crater with a thick flow. As of January 17, 2026, AVO lists Great Sitkin at WATCH with an ORANGE aviation color code. That means the eruption is still ongoing and ash is possible if activity changes, even though seismicity is low