A loud, startling boom echoed across parts of Northeast Ohio Tuesday morning, leaving many residents wondering what exactly had just happened. In cities like Cleveland, some people initially feared the worst, with reports of a possible explosion, while others said the sound was strong enough to shake their homes.
According to the National Weather Service, the cause was something much less alarming but far more fascinating.
Forecasters say the boom was likely the result of a meteor passing through Earth’s atmosphere.
When meteors travel at extremely high speeds, they can create a sonic boom as they break the sound barrier, similar to supersonic aircraft. That appears to be what startled so many Ohioans.
The National Weather Service Cleveland office pointed to data from a Geostationary Lightning Mapper, or GLM, as evidence. The instrument, which is typically used to detect lightning, picked up a quick, bright flash over the region around the time of the boom. That kind of signal is consistent with a meteor streaking through the sky.
Meteorologist Jeff Tanchak said the boom likely occurred as the object broke the sound barrier, though it is still unclear exactly when the meteor entered the atmosphere.
The NWS also shared imagery from the GLM showing a green flash over Cleveland at the time of the event.
The latest GLM imagery (1301Z) does suggest that the boom was a result of a meteor. pic.twitter.com/CH7oJ4Q1OY
— NWS Cleveland (@NWSCLE) March 17, 2026
The meteor was not just an Ohio event. In Western Pennsylvania, including the Pittsburgh area, residents reported seeing a bright fireball move across the sky around the same time.
Video captured by a National Weather Service employee in the region appears to show the meteor as it streaked overhead, giving a visual to go along with the boom heard in parts of Ohio.
While the GLM is designed to track lightning, it can also detect meteors because they produce similar quick flashes of light in the atmosphere. According to NOAA, the instrument continuously monitors for these rapid optical changes, making it useful for spotting unexpected events like this.
One of our employees, Jared Rackley, caught this morning's meteor on camera from the Pittsburgh area. pic.twitter.com/2LdqOpChti
— NWS Pittsburgh (@NWSPittsburgh) March 17, 2026
In addition to the GLM, seismographs, which are typically used to measure earthquakes, also picked up the boom. That data helped confirm that the sound many people heard was tied to the meteor.
What Happens Next?
Details about the meteor, including its size, trajectory, and whether any fragments reached the ground, are still unknown. The American Meteor Society has not yet released an official analysis of the sighting.
For now, Ohioans can take some comfort in knowing the mysterious boom had a natural explanation, even if it came from space.
