The identity of Jezero Mons on Mars is no longer a mystery. First observed back in 2007, the elevated structure on Jezero ...

In 1989, Alaska’s Redoubt Volcano, another composite volcano, belched an 8-mile cloud of ash that clogged all four engines of a KLM Royal Dutch Airlines jet.

They're also called composite volcanoes. Mount Rainier in Washington is a famous stratovolcano. Shield volcanoes are big, broad volcanoes made up of oozy lava flows that erupt from multiple vents.

More information: Sara C. Cuevas-Quiñones et al, Evidence for a composite volcano on the rim of Jezero crater on Mars, Communications Earth & Environment (2025). DOI: 10.1038/s43247-025-02329-7.

Mount St. Helens, a composite volcano, (one of the three types of volcanoes) is part of the Ring of Fire -- an area which almost fully encompasses the Pacific Rim and provides 75% of the activity ...

The Bárðarbunga volcano system was responsible for Iceland's largest eruption for 300 years back in 2014. After a recent increase in seismic activity, could it be about to erupt again?

– Composite volcanoes or stratovolcanoes: These are symmetrical, cone-shaped and have a conduit system through which magma flows to the surface. They can rise 8,000 feet above their surroundings.

Composite Volcanoes are tall, cone-shaped volcanoes built up from layers of lava flows, ash, and volcanic debris. They often erupt explosively and are known for their steep sides and symmetrical ...

While the USGS website states that Mount St. Helens is the "volcano in the Cascades most likely to erupt again in our lifetimes," the exact timing of the next eruption can't be pinpointed.

Smoke rises from the crater of the Etna volcano as it erupts, on Mount Etna near Catania, Italy, on Monday. A huge plume of ash, gas and rock spewed forth from Europe's highest active volcano.

Smoke rises from the crater of the Etna volcano as it erupts, on Mount Etna near Catania, Italy, on Monday. A huge plume of ash, gas and rock spewed forth from Europe's highest active volcano.