Early last week, around 45 megatons of ice and rock plunged down the southeast flank of Mount Steele in Canada’s Yukon Territory. The avalanche, which occurred in a remote and unpopulated area, was so large that it was initially detected by earthquake seismometers.
Everyone knows that Yellowstone is home to a super-volcano—but it turns out that the magma reservoir it sits atop is at least 2.5 times larger than we previously thought.
Back in 2011, geologists working for Signal Hill Petroleum and NodalSeismic conducted an extremely detailed survey to measure the 3D rock structure beneath their Long Beach oilfield. To do so, they deployed a series of seismic arrays consisting of 5,300 nodes spaced about 330 feet (100 meters) apart. And then the…
If you live in New York and were on Twitter about an hour ago, something like this probably happened to you: you read a tweet about an earthquake from someone in DC. Then, moments later, you felt it. Here's why.