NASA confirmed that a meteor exploded high in the atmosphere over eastern Massachusetts, creating a powerful sonic boom that rattled homes.
The event highlights the unpredictable nature of near-Earth objects and the capacity of relatively small space rocks to generate significant atmospheric shock waves.
The explosion occurred on a Saturday afternoon in June 2024 [3]. Residents across eastern Massachusetts, including the Boston area, reported hearing a double sonic boom [1, 3]. The phenomenon was caused by the meteor entering the atmosphere and detonating, which generated a shock wave that traveled to the ground [1, 2].
Initial assessments of the object's size were revised as NASA analyzed the data. While the meteor was first estimated to have a diameter of three feet [4], a re-assessment determined the object was actually five feet in diameter [4].
The energy released during the detonation was substantial. NASA data indicates the explosion was equivalent to 300 tons of TNT [5]. This massive release of energy explains why the sound was powerful enough to shake buildings and trigger widespread reports of a mysterious blast.
Reports on the geographic reach of the sound varied. Some accounts said that the boom was heard across several states [2], while other reports focused on the concentration of sightings and sounds within eastern Massachusetts [3].
“The explosion was equivalent to 300 tons of TNT.”
This event demonstrates how the Earth's atmosphere acts as a shield, incinerating most small asteroids before they reach the surface. However, the resulting kinetic energy can still cause localized disruption. The revision of the meteor's size from three to five feet underscores the complexity of calculating the mass of bolides in real-time using atmospheric data.
