Impact Events & Near Misses in History

On this page we list some of the prominent impact events from history which may be of interest to this project. The data is under construction.

Impact Events: 

  • Shoemaker-Levy 9 (July 1994), impact site planet Jupiter, 21 pieces of comet, impact velocity 60 km/s, energy 6,000 Gtons TNT equivalent.
  • Tunguska (1908), Siberia, comet air detonation 5-10 km above ground, energy 10 - 15 Mtons TNT equivalent.
  • Burckle Crater (2,800 - 3,000 B.C), Indian Ocean, comet impact, 30 km wide crater.
  • Meteor Crater, (50,000 years ago), Arizona, 50 m Nickel-Iron asteroid,  impact velocity 2.8 - 20 km/s, energy 10.7 - 26.2 Mtons TNT equivalent.
  • K-T event (66 million years ago), asteroid or comet 10-15 km diameter, impact velocity 20 km/s, energy 30,000 - 100,000 Gtons TNT equivalent.
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Near Misses:

  • Asteroid 2018 GE3 (April 2018), passed within 119,500 miles away, 150 - 360 ft in diameter object, spotted only 21 hours prior to closest approach.
  • 'Omuamua (Oct 2017), suggested impact energy 4.2 - 46.9 Gtons TNT equivalent.