Map showing the location and masses of meteorite discoveries in North and Central America. The diameter of each blue circle indicates the relative mass of the meteor. The largest intact meteorite in the USA is the Willamette which weighs 15.5 tonnes. Other notable large meteorites shown on the map include Canyon Diablo (USA, several fragments, 30 tonnes), the Bacubirito (Mexico, 20 tonnes), Chupaderos (Mexico, 14 tonnes), Morito (Mexico, 10 tonnes) and Brenham (USA, 4.3 kg). It is estimated that 6,100 meteors hit Earth each year with most burning up before impact or falling into the oceans. Data based on NASA Meteoritical list of meteorite landings.