A meteor rattled buildings as it streaked across the sky above Vermont

A fireball, traveling at an estimated 42,000 マイル/時, was spotted over the skies of northern Vermont and Canada on Sunday night, 当局者は言った.

NASA Meteor Watch said on フェイスブック それ以上 100 people saw the meteor around 5:38 午後. local time Sunday.
There was no sound whatsoever,” Al Gregoritsch of South Burlington told CNN affiliate WPTZ.I was very excited to see it. It’s a phenomenon I will never forget.
      The meteor was seen traveling northeast across 33 マイル — from Mount Mansfield State Forest to Beach Hill in Orleans County south of Newport., 代理店は言った.
        NASA Meteor Watch said the object was likely a fragment of an asteroid, while the tremors witnesses reported were caused by a pressure difference between the front and back of the object.
          The space rock fragmented violently, producing a pressure wave that rattled buildings and generated the sound heard by those near the trajectory,” 代理店は言った. “Such a pressure wave can also couple into the ground, causing minor ‘tremorsthat can be picked up by seismic instruments in the area.
            Based on infrasound measurements, which are low-frequency sounds that can travel great distances, the agency was able to measure the fireball as weighing about 10 pounds with a diameter of around six inches.
            The agency called it, “A nice little firework, courtesy of Mother Nature.

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