Three of the 10 most dangerous US volcanoes are in Oregon. They are Crater Lake Volcano, South Sister Volcano, and Mount Hood Volcano.

Washington has two, Mount Rainier Volcano and Mount St. Helens. California also has two, Lassen Volcanic Center and Mount Shasta Volcano. Hawaii is the third state to have two, Mauna Loa Volcano and Kilauea Volcano.

Alaska is home to one of the 10, Redoubt Volcano.

In order of increasing potential danger, from bad to worst, the 10 line up this way:

10. Crater Lake Volcano, Oregon

9. Redoubt Volcano, Alaska

8. Mauna Loa Volcano, Hawaii

7. Lassen Volcanic Center, California

6. South Sister Volcano, Oregon

5. Mount Shasta Volcano, California

4. Mount Hood Volcano, Oregon

3. Mount Rainier Volcano, Washington

2. Mount St. Helens Volcano, Washington

1. Kilauea Volcano, Hawaii

More Info: news.nationalgeographic.com