Scientists in Mexico documented a number of changes inside El Chichón during monitoring between June and December 2025.

But some refused to evacuate during the hazardous lava fountaining episode.

Semeru volcano — the tallest volcano on Java at 3,676 meters — erupted on the afternoon of November 19, 2025, with pyroclastic flows racing at high speed more than 8.5 kilometers down its slopes, as ...