Yellowstone volcano EARTHQUAKE: 102 tremors STRIKE supervolcano park, USGS reveals

Yellowstone volcano EARTHQUAKE: 102 tremors STRIKE supervolcano park, USGS reveals

YELLOWSTONE volcano was rattled by more than 100 deep earthquakes in August, Yellowstone National Park officials revealed.

By Sebastian Kettley

PUBLISHED: 15:35, Thu, Sep 6, 2018 | UPDATED: 15:46, Thu, Sep 6, 2018

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The Yellowstone Seismic Network, operated by the University of Utah, recorded 102 earthquakes within the national park’s borders.
The US Geological Survey’s (USGS) Yellowstone Volcano Observatory (YVO) revealed the number of quakes in its monthly park update, published this week.
The strongest of the tremors hit 2.5 magnitude on the Richter scale on the morning of August 7, 4.19am local time.

The USGS said the tremor was detected about 13 miles north-northwest of Pahaska Tepee, Wyoming.
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A strong swarm of 13 earthquakes rocked the park between August 2 and August, about eight miles outside of West Yellowstone – a town in Southern Montana.
The most powerful quake in the swarm peaked at magnitude 2.2.
Another cluster of earthquakes went off on August 26, north of West Thumb, topping at 14 earthquakes.
A slightly smaller surge of 12 earthquakes happened about 14 miles south-southeast of Mammoth Hot Springs, Wyoming.

Yellowstone volcano earthquake: The USGS recored 102 earthquakes in August (Image: GETTY)
The earthquakes erupted between August 29 and August 30 and reached magnitude 2.4.
The USGS assured the high number of earthquakes was well within the average seismic activity at Yellowstone.
The agency said: “Earthquake sequences like these are common and account for roughly 50 percent of the total seismicity in the Yellowstone region.
“Yellowstone quake activity remains at background levels.”
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Ground deformation levels at Yellowstone have also returned to 2015 levels with only minimal movement of the ground rising and dropping in places.
Earthquake sequences like these are common
United States Geological Survey
After very little ground change in July, Yellowstone GPS stations recorded defamation trends in line with previous years.
Stations in the Yellowstone caldera are slowly dropping by a few centimetres each year and stations near the Norris Geyser are rising.
The USGS said in its update: “The lack of measurable surface motion in July was probably an aberration caused by seasonal changes, perhaps due to surface and subsurface water conditions.”

Yellowstone volcano erupting: The tremors are normal background activity the USGS said (Image: GETTY)
But not everyone who followed the update was convinced nothing is out of the ordinary at Yellowstone.
Twitter user Setholic, @Setholic, said: “The fact that they have to put out that everything is normal makes me think it’s not.”
Scores of conspiracy theorists fear the massive supervolcano complex is long-overdue a cataclysmic eruption.
Yellowstone volcano last erupted some 640,000 years ago but no-one really knows when it will pop again.

Yellowstone volcano earthquake: Some conspiracy theorists think the supervolcano will blow (Image: GETTY)
USGS geologists are positive any future eruption will not happen within our lifetime.
The agency said: “Future volcanic eruptions could occur within or near Yellowstone National Park for the simple reason that the area has a long volcanic history and because there is hot and molten rock, or magma, beneath the caldera now.
“Yellowstone is monitored for signs of volcanic activity by YVO scientists who detect earthquakes using seismographs and ground motion using GPS.
“YVO has not detected signs of activity that suggest an eruption is imminent.”