Dec 7, 2023 · Locations of Very High and High Threat volcanoes in California. Starbursts indicate volcanoes which have erupted in the last 3,500 years, and triangle colors indicate threat status.

Oct 25, 2019 · The US state of California contains a total of 20 volcanoes. Many of the state's volcanoes have been inactive for long periods of time, although others exhibit evidence of …

Sep 24, 2020 · Add these California volcanoes to your bucket list, and experience what it means to discover these menacing and majestic beauties.

Feb 12, 2021 · Seismologists have found that there are at least seven active volcanoes around California. They may not physically show signs of activity, but that's typical for volcanoes. They …

Volcanoes: More than 500 volcanic vents have been identified in the State of California. At least 76 of these vents have erupted, some repeatedly, during the last 10,000 years. Sooner or …

May 14, 2025 · California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing …

California contains 20 known volcanoes. While many of these are currently thought to be inactive, the United States Geological Survey (USGS) has identified seven volcanoes that exhibit …

The most active volcano in California is Mount Shasta, which last erupted in 1786. Other active volcanoes in California include Lassen Peak, Long Valley Caldera, and Mono Craters.

May 14, 2025 · Of the eight active volcanoes on the USGC watch list, three are relatively easy to explore — Long Valley, Mt. Lassen, and Ubehebe Craters in Death Valley.

May 20, 2025 · Eight “watch list” volcanic areas are ranked as moderate, high, or very high threat in California. Brief summaries of their landscape, geography, eruption history, and monitoring …