Does California Have Volcanoes?
At Least Seven California Volcanoes—Medicine Lake Volcano, Mount Shasta, Lassen Volcanic Center, Clear Lake Volcanic Field, Long Valley Volcanic Region, Coso...
At least seven California volcanoes—Medicine Lake Volcano, Mount Shasta, Lassen Volcanic Center, Clear Lake Volcanic Field, Long Valley Volcanic Region, Coso Volcanic Field, and Salton Buttes - have partially molten rock (magma) deep within their roots, and research on past eruptions indicates they will erupt again in ...
How many volcanoes are in California?
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 recent volcanic activity.
When was the last time a volcano erupted in California?
California last experienced a volcanic eruption on May 22, 1915, when Mount Lassen sent pulverizing streams of volcanic debris down its slopes.