Volcanic activity has been reported at several locations worldwide, including Etna volcano, Santiaguito, Fuego, and Semeru. The activity has been ongoing over a period of time, with various volcanoes being reported as active on different days. The specific volcanoes reported as active have varied, with some, such as Santiaguito and Fuego, being consistently mentioned, while others, like Etna and Popocatépetl, are reported on certain days.