Historic supereruption at Yellowstone
Scientists have found evidence of two previously unknown eruptions at Yellowstone National Park and discovered that continent-size blobs of rock near Earth's core are bigger than previously thought.
The largest eruption of the Yellowstone hotspot ever detected
Scientists have found evidence of two previously unknown eruptions at Yellowstone National Park, which they named the McMullen Creek supereruption and the Grey's Landing supereruption. The Grey's Landing eruption shattered records as the largest eruption of the Yellowstone hotspot ever detected; about 8.72 million years ago, the eruption covered roughly 8,900 square miles (23,000 square kilometers) of what is now southern Idaho and northern Nevada with volcanic debris.
Monstrous blobs near Earth's core are bigger than we thought
Continent-size blobs of rock sit at the boundary of Earth's solid mantle and liquid outer core, and now, scientists think they might be bigger than we ever imagined. By previous estimates, the two largest blobs would measure 100 times taller than Mount Everest if pulled to the planet's surface. But after studying decades of seismic data from earthquakes, scientists now estimate that the big blob beneath the Pacific Ocean may actually be far more monstrous. For instance, one newfound structure along the edge of the blob measured more than 620 miles (1,000 kilometers) across.