What Are the Chances of Getting Hit by a Meteorite?

The idea of a space rock striking an individual often appears in fiction and film, capturing the imagination. While impacts on Earth are a continuous process, the likelihood of a meteorite directly hitting a person is incredibly remote. Natural protections make personal encounters exceptionally rare.

The Cosmic Journey to Earth

Meteorites begin as meteoroids, fragments of rock or metal traveling through space. These range in size from tiny dust grains to small asteroids. Most originate from the asteroid belt, but some can also come from comets, or be ejected from the surfaces of the Moon or Mars due to other impacts.

When a meteoroid enters Earth’s gravitational pull, it accelerates towards our planet. Even with millions of objects traversing space, the chances of one being on a direct collision course with Earth are relatively small.

Earth’s Atmospheric Shield

Earth’s atmosphere serves as a natural protective barrier against incoming space objects. As a meteoroid enters the atmosphere at high speed, it experiences intense friction, pressure, and chemical interactions. This generates extreme heat, causing the object to glow brightly, creating what we commonly call a “meteor” or “shooting star.”

Most meteoroids, especially smaller ones, completely burn up or disintegrate into dust high in the atmosphere. Intense air pressure can also tear them apart. Only larger, more durable objects survive this fiery descent to Earth’s surface, becoming meteorites.

Calculating the Odds of Personal Impact

The statistical probability of an individual being struck by a meteorite is exceedingly low. An estimated 17,000 meteorites, mostly small, fall to Earth each year, but the vast majority land in oceans or uninhabited areas. Earth’s surface is predominantly water (about 71%) and sparsely populated land, making a direct hit on a person an astronomical long shot.

Scientific estimates place the lifetime odds of an individual being killed by a meteorite impact at around 1 in 1,600,000. This compares to far higher odds for other rare events, like being struck by lightning (around 1 in 135,000). The chance of a meteorite hitting a specific person’s head each year has been estimated at approximately 1 in 100 billion.

Documented Human Encounters

Verifiable instances of direct human impact are extraordinarily rare. The most widely cited and scientifically confirmed case occurred on November 30, 1954, when Ann Hodges of Sylacauga, Alabama, was struck by an 8.5-pound meteorite. The space rock crashed through her roof, bounced off a radio, and hit her on the thigh, leaving a significant bruise.

This incident remains the only documented case of a person being directly injured by a meteorite. While other historical accounts exist, they lack definitive scientific verification. Meteorites have rarely struck buildings or vehicles, but these incidents typically do not involve personal injury.