Caltech researchers used advanced imaging techniques to investigate increased seismic activity in California’s Long Valley Caldera, a dormant supervolcano. Since the 1980s, researchers have observed significant periods of unrest in a region of California’s Eastern Sierra Nevada mountains characterized by swarms of earthquakes as well as the ground inflating and rising by almost half an … Continue reading California Supervolcano: Caltech’s “Chilling” Discovery in Long Valley Caldera