The most recent swarm of earthquakes was good news for seismologists on the project, Poland said. And even more happily, the Yellowstone magma chamber is mostly solid!" the USGS tweeted Friday in response. "Happily, the volcano doesn't know what year it is. 1.įor some, "2020 its just not the year to be messing about with things like Yellowstone's magma chamber," one Twitter user wrote.īut scientists say there's nothing to worry about.
The USGS Volcano Hazards Program declared a "normal" alert level on Sept. Luckily, there are no signs of an imminent eruption. These trucks are giant vehicles that can weigh up to 70,000 pounds that vibrate steel plates on the ground, sending low frequency energy through it they are helping to create images of the top of Yellowstone's magma chamber-or that sleeping "supervolcano" people fear will explode unannounced-with the help of hundreds of temporary seismometers located across the park. What's more, the 91 quakes rattled alongside "fake" tremors set off by a "vibroseis" truck driven through Old Faithful, West Thumb, Canyon Village and Lake Butte as part of an experiment conducted by the University of Utah and University of New Mexico, Poland added. It's when earthquakes reach magnitudes between 2.5 and 5.4 that activity is usually felt, with minor resulting damage. The biggest temblor was recorded at 2.8 magnitude, while the weakest was measured at 0.1 magnitude. "For example, there was a 3-month-long swarm that occurred in June-September 2017 with 2,400 located earthquakes and maximum (magnitude) 4.4." The recent cluster of quakes didn't pass 3.0 magnitude. "Yellowstone has had swarms that include many hundreds of earthquakes in a day," Poland said. Although the area is one of the most seismically active regions in the U.S., the cluster of quakes "is on the large side in terms of number and magnitude, but nowhere near the largest," Michael Poland, scientist-in-charge at the Yellowstone Volcano Observatory, told McClatchy News in an email.
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