Meteor Boom, Bright Fireball Over New England

NASA said a meteor broke apart over New England at 2:06 p.m. EDT on Saturday, May 30, producing a bright daytime fireball and a boom that residents reported across Massachusetts and other parts of the Northeast. The agency said the object entered Earth’s atmosphere at roughly 42,000 mph and exploded high above Cape Cod Bay. The American Meteor Society logged at least 85 reports tied to the event, with people saying they saw the fireball, heard the blast or felt shaking from Delaware to Montreal. ### Why did so many people hear a boom instead of seeing the meteor? NASA said the sound was caused by the meteor’s breakup and the shock wave that followed as it moved through the atmosphere. The agency’s updated estimate put the blast energy at about 230 tons of TNT, enough to produce the double boom and rattling described by residents. (nbcconnecticut.com) Massachusetts and Rhode Island residents told local outlets that houses shook and pets reacted when the boom hit just after 2 p.m. The American Meteor Society said many reports came from people who never saw the fireball at all, which is consistent with a daytime event that can be hard to spot even when the sonic effects carry over a wide area. (nbcconnecticut.com) ### How big was the object that entered the atmosphere? NASA said Monday that the meteor was about 5 feet, or 1.6 meters, in diameter and had a mass of 5.6 metric tons. That was larger than some early public estimates issued soon after the event, as scientists refined the trajectory and energy calculation. (wickedlocal.com) The Associated Press, citing NASA, described the object as roughly as heavy as an elephant. The meteor traveled about 26 miles from northwest to southeast before breaking up about 31 miles above sea level, according to the updated analysis carried by regional broadcasters. ### Where did scientists think the meteorite landed? (nbcconnecticut.com) Cape Cod Bay is the leading debris area identified by NASA. The agency said surviving fragments likely fell “right in the middle of Cape Cod Bay,” based on radar and trajectory analysis reported by local outlets. National Weather Service radar and satellite lightning data were among the tools cited by meteorologists and local news reports as helping confirm the event’s path. (apnews.com) Early reports had focused on a boom over eastern Massachusetts; later NASA updates narrowed the likely fall zone to the bay rather than populated areas on land. ### How unusual was a daytime fireball like this? (cbsnews.com) The American Meteor Society said major fireball events are logged regularly, but large daytime events that also generate widespread sonic reports are less common. Former NASA employee and WPRI meteorologist T.J. Del Santo said typical visible meteors are far smaller, often no bigger than grains of sand. Regional and national reports said the New England event stood out because it happened in daylight, was captured on dashcams and doorbell cameras, and produced reports across several states and parts of Canada. (wcvb.com) Witness videos from New York and New England helped researchers reconstruct the path. (amsmeteors.org) ### What happens next for investigators and skywatchers? NASA’s fireball tracking pages and the American Meteor Society’s event logs are continuing to collect data and public reports tied to the May 30 event. Scientists have not reported injuries or confirmed property damage, and the likely splashdown in Cape Cod Bay reduces the chance of a land-based debris recovery. (smithsonianmag.com) Cape Cod-area reporting said any surviving meteorites would most likely be in the bay, where recovery would depend on location, conditions and access. For now, the next step is continued review of witness submissions, video and radar data by NASA and the American Meteor Society. (capecodtimes.com) (fireballs.ndc.nasa.gov)