Home Science Meteor rattles US households with 42,000mph journey through the sky

Meteor rattles US households with 42,000mph journey through the sky

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Sharing their findings about the space rock, NASA also took to Facebook to comment on the meteor’s disintegration, measured at 200 kilograms of TNT.

They said: “As the object (which was likely a fragment of an asteroid) penetrated deeper into the atmosphere, pressure built up on its front while a partial vacuum formed behind it.

“About 30 miles up, the pressure difference between front and back exceeded its structural strength.

“The space rock fragmented violently, producing a pressure wave that rattled buildings and generated the sound heard by those near the trajectory.

“Such a pressure wave can also couple into the ground, causing minor ‘tremors’ that can be picked up by seismic instruments in the area; the wave itself can be detected by infrasound (low-frequency sound that can travel great distances) stations.”



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