page_title: Mount Hudson
section_title: Eruptive history
hierarchical_section_title: Mount Hudson / Eruptive history
context_page_description: Mount Hudson is a stratovolcano in southern Chile, and the site of one of the largest eruptions in the twentieth century. The mountain itself is covered by a glacier. There is a caldera at the summit from an ancient eruption; modern volcanic activity comes from inside the caldera. Mount Hudson is named after Francisco Hudson, a 19th-century Chilean Navy hydrographer.
context_section_description: Large eruptions around 4750 BCE and 1890 BCE are believed to have been of Volcanic explosivity index (VEI) 6; these are probably responsible for the large caldera.  The 4750 BCE eruption may have wiped out many or all of the groups living in central Patagonia at that time, based on evidence from the Los Toldos archaeological site. Recently, the volcano has had moderate eruptions in 1891 and 1971 as well as a large eruption in 1991.
caption: Map showing the location of Mt. Hudson and a few other Chilean Volcanoes