Volcanic activity has been reported at several volcanoes worldwide, including Santiaguito, 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 dates. The specific volcanoes and their activity levels seem to fluctuate, but Santiaguito and Fuego are consistently mentioned as being active.