Alaskan volcanoes have produced one or two eruptions per year since 1900. At least 20 catastrophic caldera-forming eruptions have occurred in the past 10,000 years; the awesome eruption of 1912 at Novarupta in what is now Katmai National Park and Preserve is the most recent.
The World’s Five Most Active Volcanoes Intro. (Image credit: Jesse Allen) Sangay, Ecuador – 94 years. (Image credit: Ecuador Ministry of Tourism) Santa María, Guatemala – 101 years. (Image credit: dreamstime) Stromboli , Italy – 108 years. (Image credit: stock.xchng) Mount Etna, Italy – 109 years. Mount Yasur , Vanautu – 111 years.
WHERE: Alaska . Makushin Volcano is Unalaska Island’s highest peak and one of the most active volcanoes in Alaska . Its most recent eruption in 1995 is considered to be quite small compared to its track record over the last 4,000 years.
Alaska’s Volcanoes . Alaska is home to more than 40 active volcanoes ( volcanoes that have had at least one eruption since 1760) and many more potentially active volcanoes . Many of Alaska’s volcanoes occur along the Alaska Peninsula and Aleutian Island.
In terms of large explosions, Yellowstone has experienced three at 2.08, 1.3, and 0.631 million years ago. This comes out to an average of about 725,000 years between eruptions . Although another catastrophic eruption at Yellowstone is possible, scientists are not convinced that one will ever happen.
Yellowstone volcano WARNING: Catastrophic eruption would destroy ALL life on Earth.