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The meteor was seen moving northeast for 33 miles – from Mount Mansfield State Forest to Beach Hill in Orleans County south of Newport, the agency said.
NASA Meteor Watch said the object was likely an asteroid fragment, while the tremors reported by witnesses were caused by a pressure difference between the front and back of the object.
“The space rock violently fragmented, producing a pressure wave that shook the buildings and generated the sound heard by those who were near the path,” the agency said. “Such a pressure wave can also couple in the ground, causing minor ‘tremors’ that can be picked up by seismic instruments in the area.”
Based on measurements of infrasound, which are low-frequency sounds that can travel great distances, the agency was able to measure the fireball as weighing around 10 pounds with a diameter of around six inches.
The agency called it, “A cute little fireworks display, courtesy of Mother Nature.”
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