 Via L-T-A-N-O-L-O-G-I-F-T, a volcanologist or volcanologist is a geologist who studies the processes involved in the formation and eruptive activity of volcanoes and their current and historic eruptions, known as volcanology. Volcanologists frequently visit volcanoes, especially active ones, to observe volcanic eruptions, collect eruptive products including tetherers such as ash or pumice rock and livid samples. One major focus of inquiry is the prediction of eruptions. There is currently no accurate way to do this, but predicting eruptions could alleviate the impact on surrounding populations.