The most recent occurred about 640,000 years ago. Here ... YVO scientist-in-charge Mike Poland said in the below monthly update that the earthquakes are … The most recent was 640,000 years ago, which formed Yellowstone as we know it and spewed 240 cubic miles of ash, rock and pyroclastic materials over roughly half of what is now the United States. Yellowstone has had at least three such eruptions one about 2.1 million years ago, the next 1.2 million years ago, and the last big one 640,000 years ago. The Yellowstone supervolcano has unleashed three cataclysmic eruptions in the past 2.1 million years; all well before humans populated North America. The very term “Supervolcano” implies an eruption of magnitude 8 on the Volcano Explosivity Index, indicating an eruption of more than 1,000 cubic kilometers (250 cubic miles) of magma. Yellowstone has had at least three such eruptions one about 2.1 million years ago, the next 1.2 million years ago, and the last big one 640,000 years ago. Summary. The very term “Supervolcano” implies an eruption of magnitude 8 on the Volcano Explosivity Index, indicating an eruption of more than 1,000 cubic kilometers (250 cubic miles) of magma. Geologic evidence suggests that Yellowstone’s supervolcano mounts a massive eruption once every 600,000 to 800,000 years.

The most recent eruption formed the Yellowstone caldera. There may be a way to work out when Yellowstone supervolcano will next erupt, scientists have said. Yellowstone volcano is estimated to have last erupted 640,000, 1.2 million and 2.1 million-years-ago. The most recent was 640,000 years ago, which formed Yellowstone as we know it and spewed 240 cubic miles of ash, rock and pyroclastic materials over roughly half of what is now the United States. The biggest super-eruption ever to be recorded at Yellowstone volcano has been discovered by scientists, finding an event that took place 8.7 million years ago covered an area the size of New Jersey with searing hot volcanic glass. This eruption is predicted to render two-thirds of the United States uninhabitable and wipe out most of the world’s population. Yellowstone supervolcano is not gearing up to an eruption - but you wouldn't believe that if you typed "Yellowstone" into Google, Facebook or Twitter's search bar. The supervolcano beneath Yellowstone National … The area in and around Yellowstone National Park has seen tremendous volcanic activity in its past. "It doesn't look like at this point that the [Yellowstone] magma reservoir is ready for an eruption," said Farrell, co-author of the 2015 study in the journal Science. [ Can You Outrun a Supervolcano? The Yellowstone supervolcano has unleashed three cataclysmic eruptions in the past 2.1 million years; all well before humans populated North America. The >2450 km 3 (588 mi 3) Huckleberry Ridge Tuff erupted about 2.1 million years ago, creating a large, approximately 75 km (47 mi) wide, caldera and thick volcanic deposits.A second cycle concluded with the eruption of the much smaller Mesa Falls Tuff around 1.3 million years ago. The Yellowstone supervolcano at the Yellowstone National Park in Wyoming is mathematically overdue for another devastating eruption. Three giant eruptions have occurred between 2.1 million and 640,000 years ago. The Yellowstone Caldera, which measures about 34 to 45 miles wide, is a supervolcano located in the Yellowstone National Park. Yellowstone National Park's supervolcano had to super-eruptions nine million years ago, but has not had another in three million years - leading experts say the caldera's power is waning. Yellowstone Supervolcano Eruption Rumors Are Back.