MANCHESTER, New Hampshire: A meteor could have caused a loud explosion that was heard on Sunday in parts of southern and central New Hampshire, as well as Massachusetts and Maine, according to scientists.
Speculation included that the sound was possibly a sonic boom caused by a meteor that entered Earth's atmosphere at supersonic speed before burning up, they added.
The explosion, along with the sensation of mild shaking, was reported by local residents at around 11:30 am from more than 40 cities and towns from Keene to Farmington, and from people in northern Massachusetts and eastern Maine.
On Sunday, the Federal Aviation Administration said there was no military aircraft activity over the state, while the U.S. Geological Survey said there were no reported earthquakes in New England.
"The Earth is always passing through this sort of dust of sporadic meteoroids. Mostly, they are very small, dust-sized particles, and they are creating meteor events that no one notices, except scientists who try and look for them. But sometimes, you get these bigger meteoroids, and they create something that everybody notices," said Massachusetts Institute of Technology scientist Ryan Volz said.
Because it was overcast across much of the region on Sunday morning, it is uncertain if any evidence of a meteor exists, the scientists added.