8.1K views · 155 reactions | Redoubt Volcano (Alaska) erupted 26 years ago this week, with eruptions continuing into June of 1990. Here is a fixed wing fly-by of the volcano, including a tipped wing look down into the crater, taken during an eruption on January 14, 1990. The video is from the Alaska Volcano Observatory archives. #usgs #avo #alaskavolcanoobservatory #volcanoes #redoubt #geology | USGS Volcanoes | Facebook

Explosive eruption at Alaska's Shishaldin Volcano sends ash cloud to nearly 30,000 feet

🚨 SHISHALDIN VOLCANO ALERT RAISED – AUGUST 25, 2025 🚨 The Alaska Volcano Observatory has raised Shishaldin’s alert level to ADVISORY (YELLOW) after a surge in seismic tremors, infrasound, and sulfur dioxide gas. Steaming from the summit has intensified. These are the same signals recorded before the 2023 eruption that disrupted international flights. Shishaldin erupts with little warning. Flight paths and communities near Unimak Island are now on alert. #Shishaldin #AlaskaVolcano #VolcanoAlert

Small earthquakes signal possible eruption of Alaskan volcano, Mount Spurr