NS Earth It rumbling again under Yellowstone National Park, and in July 2021 more than 1,000 quakes were recorded in the area. US Geological Survey (USGS) Report.. This is the most seismic activity the park has seen in a month. After June 2017The report said, when a flock of more than 1,100 people rattled the area.
Fortunately, these are earthquake Only four temperers measured in the magnitude 3 range were minor (strong enough to feel, but less likely to cause damage). ..
“Although above average, this level of seismic activity is unprecedented and does not reflect igneous activity,” the USGS reports. “If igneous activity is the cause of the earthquake, other indicators such as deformation style changes and heat / outgassing are expected to be seen, but no such fluctuations were detected.”
Throughout July 2021, the University of Utah Seismometer Station, responsible for monitoring and analyzing earthquakes in the Yellowstone Park area, recorded a total of 1,008 earthquakes in the area. These quakes occurred in a series of seven herds, with the most active event occurring on July 16. According to the USGS, at least 764 quakes, including a magnitude 3.6 quake, rattled the ground deep in Yellowstone Lake. Month.
According to the report, the remaining six herds of the moon were all small, with 12 to 40 quakes per episode, all less than magnitude 3.
The USGS need not worry about these quakes, the USGS added, adding that the Earth’s sway is likely the result of the movement of existing faults beneath the park. Fault movements can be stimulated by thaw, which increases the amount of groundwater that seeps under the park and raises underground pressure levels, the researchers said.
Yellowstone is one of the most seismically active areas in the United States. According to the report, the area is typically hit by 700 to 3,000 earthquakes annually, most of which go unnoticed by visitors. National Park Service.. The largest earthquake recorded in Yellowstone was the 1959 earthquake of Lake Hebgen with a magnitude of 7.3.
Why is it so unstable?The park is on a huge network of fault lines Volcano It was buried deep underground (according to the USGS, the volcano last erupted about 70,000 years ago). Earthquakes occur when fault lines in the area extend and magma, water, and gas move beneath the surface of the earth.These features will also make the park reliable Geyser A hot and humid hot spring.
Yellowstone volcano has erupted several times in the past, with huge eruptions every 72,500 years. If this schedule is correct, the park will erupt again in about 100,000 years. Such eruptions devastate the entire United States, clog rivers across the continent with ash, and cause widespread drought and famine. Live science previously reported..
Originally published in Live Science.
Last month, over 1,000 earthquakes struck Yellowstone Park. Is the “big thing” approaching?
Source link Last month, over 1,000 earthquakes struck Yellowstone Park. Is the “big thing” approaching?