Which U.S. States Have Active Volcanoes? Not Just Hawaii

No, Hawaii is not the only state with active volcanoes. The U.S. Geological Survey identifies active or potentially active volcanoes in:

• Alaska – Most active volcanoes in the U.S. (e.g., Redoubt, Pavlof).
• California – Mount Shasta, Lassen Volcanic Center, Long Valley Caldera.
• Oregon – Mount Hood, Crater Lake, Newberry Volcano.
• Washington – Mount Rainier, Mount St. Helens, Mount Baker, Glacier Peak.

Hawaii (Kīlauea, Mauna Loa) has the most frequently active volcanoes, but the Pacific Northwest and Alaska pose significant volcanic hazards as well.