From AP:
When the double boom rang out in New England over the weekend, shaking homes and sending pets fleeing, questions started flooding social media. NASA let people know over the weekend that the cause of the commotion was a meteor, but on Monday they revealed even more stunning details.
The fireball was as heavy as an elephant and 5 feet (1.52 meter) wide and was going 42,000 mph (67,592.5 kph) when it entered earth’s atmosphere. It broke up miles above New England on Saturday and the energy released was equivalent to about 230 tons of TNT, the agency estimated, accounting for the booms.