The resulting shock wave had a significant impact on the city of Chelyabinsk.
Do you remember the meteor that blazed a trail across the Russian sky on February 15, 2013? The resulting shock wave had a major impact on the city of Chelyabinsk, leading to property damage and causing more than 1,500 injuries to the city’s residents. Now, scientists, supervised by Alexis Le Pichon of the French Atomic Energy Commission, believe that the shock wave was so strong that it traveled the globe twice.
“For the first time since the establishment of the IMS infrasound network, multiple arrivals involving waves that traveled twice round the globe have been clearly identified,” the scientists write in a paper recently published in the journal Geophysical Research Letters.
The Global Seismic Network and EarthScope Transportable Array also measured the shock wave as it traveled across the United States.
“These recordings of seismic waves through the Earth, and sound waves through the atmosphere, are good examples of how these facilities can help global organizations better monitor earthquakes, clandestine nuclear tests and other threats,” said Greg Anderson, program director in NSF’s Division of Earth Sciences, in a news release.