Will the Jemez Mountains/Valles Caldera erupt again?
Given the past volcanic history of the Jemez Mountains, future eruptions will probably happen here. However, it is impossible to predict when this will happen. If there were to be an imminent eruption again, we’d know because of the occurrence of large earthquakes as well as changes in temperature in the hot springs and fumaroles of the Jemez (fumaroles are openings in Earth’s crust which emit steam and gases. Fumaroles in the Valles Caldera can be found at the Sulphur Springs complex, which is a private inholding on the west side of Valles Caldera National Preserve).