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Volcano news
Sat, 4 Apr 2020, 01:15
The Yellowstone Volcano Observatory (YVO) report that over the month of March 2020, 111 earthquakes were located in the Yellowstone National Park region. The largest earthquake measured magnitude 3.1 located 5 miles north-northwest of West Yellowstone, MT, on March 31 at 9:36 AM MDT. ... read all
Sat, 6 Jul 2019, 19:29
The M7.1 earthquake has also triggered an earthquake swarm at the southern end of the volcanic field, with around 30 earthquakes per hour. read all
 

Volcanoes of Canada and USA (mainland)

All volcanoes in Canada and in the contiguous states of the USA are listed that have had volcanic activity within the past 10,000 years or are considered to be still active.
Colorado (3 volcanoes): Dotsero | McCoy | Willow Peak
Oregon (60 volcanoes): Bachelor | Bailey | Belknap | Big Bunchgrass | Black Butte | Black Crater | Blue Lake Crater | Boring Lava | Broken Top | Brown Mountain | Cappy Mountain | China Hat-East Butte | Cinnamon Butte | Cowhorn Mountain | Crater Lake | Cultus Mountain | Cupit Mary Mountain | Defiance | Devils Garden | Devis Lake | Diamond Craters | Diamond Peak | Fort Rock Volcanic Field | Four Craters | Four Craters Lava Field | Fuji Mountain | Goose Nest | Imagination Peak | Irish Mountain | Jackies Butte | Jefferson | Jordan Craters | Lava Butte | Lava Mountain | Lost Lake Butte | Maiden Peak | McLoughlin | Mount Hood | Mount Washington | Mountain Lakes | Newberry | North Sister | Olallie Butte | Pelican Butte | Quartz Mountain | Red Top Mountain | Saddle Butte | Sand Mountain | Scott Mountain | Silver Creek | South Sister | Sprague River Valley | Squaw Ridge | Taylor Butte | Thielsen | Three Fingered Jack | Tumalo | Williamson Mountain | Wilson | Wuksi Butte-Twin Lakes
There are more volcanoes in Canada and the USA than most people know, including many that are active, although there have been extremely few eruptions (but including the famous 1980 eruption of Mt. St. Helens) in the past 150 years. In the 20th century, there were only 2 eruptions: Lassen in 1915 and Mt St Helens in 1980, and since the turn of the century, only St. Helens has been active between 2004-2008.

Most volcanoes of Canda & USA are located along the west coast and related to the subduction of the Pacific plate under the continental North American tectonic plate.
The USGS in particular does a great job in monitoring, studying and publishing a great wealth of information about them.

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