Facts about Volcanoes
- 11
New Zealand's Lake Taupo volcano erupted around 1,800 years ago with a Volcanic Explosivity Index of 8, ejecting ash across the entire country and turning day into darkness at noon.
- 10
Geothermal energy from volcanic heat sources powers Iceland's electricity grid, with geysers and hot springs providing approximately 30 percent of the nation's total energy production.
- 09
Pyroclastic flows from Mount Vesuvius during its 79 AD eruption reached temperatures of 300 degrees Celsius and speeds exceeding 100 kilometers per hour, instantly killing inhabitants of Pompeii and Herculaneum.
- 08
Sulfur dioxide released during the 1991 Mount Pinatubo eruption in the Philippines created a stratospheric aerosol layer that cooled Earth's surface by 0.5 degrees Celsius for 15 months.
- 07
In 1883, Krakatoa's catastrophic explosion in Indonesia generated sound waves heard 4,800 kilometers away in Mauritius, the loudest recorded sound in human history.
- 06
Yellowstone's supervolcano last erupted 640,000 years ago with an explosive force approximately 2,500 times more powerful than the 1980 Mount St. Helens eruption.
- 05
Lava from basaltic volcanoes can flow at speeds exceeding 100 kilometers per hour, traveling across landscapes and consuming everything in their path within minutes.
- 04
Underwater volcanoes called seamounts cover approximately 1 million locations across Earth's ocean floors, yet remain largely unmapped and unstudied.
- 03
Mount Everest's height increases by approximately 4 millimeters annually due to the ongoing collision of the Indian and Eurasian tectonic plates, a process driven by the same volcanic and geological forces that created the Himalayan mountain range.
- 02
Kilauea volcano in Hawaii has erupted continuously for 35 years from 1983 to 2018, making it one of the world's longest sustained volcanic eruptions.
- 01
The 1815 eruption of Mount Tambora in Indonesia ejected 60 million tons of ash into the atmosphere, causing global temperatures to drop by 0.4 to 0.7 degrees Celsius.