Yellowstone and Hawaiʻi. These systems a well known for producing large volumes of magma through time and leaving chains of ...

allowing them to map the distribution of molten rock beneath Yellowstone without drilling. Their findings indicate that rhyolitic melts are stored in segregated regions beneath the caldera ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. The Yellowstone supervolcano appears to be bigger than scientists previously expected.

Left behind is a giant caldera, from the Spanish word for "cauldron." The "hot spot" responsible for the Yellowstone caldera has erupted dozens of times in the past, going back some 18 million years.