▲The highest peak in the Cascade Range last erupted about 1,000 years ago.

▲However, there is an active thermal system under the volcano and it is considered to be a very high threat.

▲This volcano most recently erupted from 2004-2008.

▲It has experienced a series of earthquakes starting in January 2018, and is considered to be a very high threat.

▲Oregon’s highest peak last erupted in 1865.

▲The volcano has been quiet since then, but it is under watch by the USGS.

▲The entire Three Sisters area is considered to have a high threat potential for eruptions.

▲If the eruption doesn’t come from South Sister Volcano or the other sisters, it might come from the formation of a new volcano.

▲This volcanic area last experienced an eruption in 1917.

▲It has experienced some earthquakes since then, and could experience another volcanic eruption sometime soon.

▲This volcano last erupted 200-300 years ago.

▲Records indicate that the volcano erupts every 600-800 years, and it’s considered a very high threat.

▲Mauna Loa is the Earth’s largest active volcano. Before 2022's event, Mauna Loa last erupted in 1984.

▲This volcano last erupted in 2009, and is close to the city of Anchorage.

▲It is being carefully monitored and is not currently erupting.

▲The Mount Mazama volcano last erupted 6,600 years ago, and the crater (now filled with water) known as Crater Lake was formed due to a collapse during an earlier eruption.

▲Things have been quieter since the last eruption, but the USGS still thinks it’s worth keeping a very close eye on the area.

▲The volcanic eruptions that formed Yellowstone’s calderas haven’t occurred for 70,000 years.

▲If this massive volcano were to erupt, it could be catastrophic. The Yellowstone Volcano is sometimes called a supervolcano.

▲The volcano hasn’t erupted for at least 16,000 years, but has shown signs of unrest over the past few decades.

▲The USGS considers its threat potential very high and monitors the area very carefully.

▲The largest volcano in the Cascades volcanic arc has not erupted for 1,300 years.

▲However, the presence of hot springs and geologically recent lava flows make it quite clear this is still an active volcano that should be watched.

▲This Alaskan volcano was last active in 2014, and is being monitored.

▲This Aleutian Volcano has erupted a number of times. It last erupted in 1995.

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The volcano is one of the more active volcanoes in the Aleutian Arc.

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Kilauea has been active since 1983. It has erupted several times in the last few years. In 2018, Kilauea experienced a particularly violent and destructive eruption that destroyed 700 homes and forced a mass evacuation.

▲Volcanic eruptions are as terrifying as they are beautiful. In addition to their extreme temperatures, they can release toxic gases and ash, and even cause earthquakes. But which American volcanoes are truly the most dangerous?

Here's a list of volcanoes to watch out for, according to the US Geological Survey.

America’s most dangerous volcanoes

Hawaii's Mauna Loa, the world's biggest active volcano, has erupted after 38 years

03/12/24 por StarsInsider

LIFESTYLE Nature

Volcanic eruptions are as terrifying as they are beautiful. In addition to their extreme temperatures, they can release toxic gases and ash, and even cause earthquakes. But which American volcanoes are truly the most dangerous?

Here's a list of volcanoes to watch out for, according to the US Geological Survey.