SUPERVOLCANO CASE STUDY: YELLOWSTONE NATIONAL PARK USA

1. The magma chamber is 40-80km wide

2. The caldera is 1,500 square miles

3. Last eruption was 640,000 yrs ago

4. Estimated period between eruptions is 700,000 yrs

5. Supervolcanoes are volcanoes that have erupted with a magnitude of 8 on the VES (VOLCANIC EXPLOSTIVITY SCALE)

6. Frequent eruptions, up to 20 a day

7. Volcanic activity hot spot

8. Geologically active area with geysers, hot springs and mud pots