Several volcanoes worldwide are experiencing activity, including Santiaguito volcano, Fuego, and Semeru. The list of active volcanoes appears to vary over time, with other volcanoes such as Popocatépetl, Krakatau, and Ibu also being reported as active on different days. The specific volcanoes and their activity levels seem to be changing, with updates being provided for various dates in June and July 2026.