Editing Tunguska event (section)

==Similar event==
{{See also|Fireball (meteor)|Meteor air burst|Chelyabinsk meteor}}

A [[Chelyabinsk meteor|smaller air burst]] occurred over a populated area on 15 February 2013, at [[Chelyabinsk]] in the Ural district of Russia. The exploding meteoroid was determined to have been an asteroid that measured about {{convert|17|–|20|m|ft}} across. It had an estimated initial mass of 11,000 tonnes and exploded with an energy release of approximately 500 kilotons.<ref name="nasatusk">{{cite web|last1=Smith|first1=Kimberly Ennico|title=Tunguska Revisited: 111-Year-Old Mystery Impact Inspires New, More Optimistic Asteroid Predictions|url=https://www.nasa.gov/feature/ames/tunguska-revisited-111-year-old-mystery-impact-inspires-new-more-optimistic-asteroid|website=NASA|access-date=6 July 2019|ref=nasatusk|date=25 June 2019|archive-date=1 July 2019|archive-url=https://web.archive.org/web/20190701120323/https://www.nasa.gov/feature/ames/tunguska-revisited-111-year-old-mystery-impact-inspires-new-more-optimistic-asteroid/|url-status=live}}</ref> The air burst inflicted over 1,200 injuries, mainly from broken glass falling from windows shattered by its shock wave.<ref>{{cite news|url=https://www.reuters.com/article/uk-russia-meteorite/meteorite-hits-central-russia-more-than-500-people-hurt-idUSLNE91E00G20130215|title=Meteorite hits central Russia, more than 500 people hurt|first1=Natalia|last1=Shurmina|first2=Andrey|last2=Kuzmin|agency=Reuters|access-date=8 October 2017|archive-date=9 October 2017|archive-url=https://web.archive.org/web/20171009041833/http://www.reuters.com/article/uk-russia-meteorite/meteorite-hits-central-russia-more-than-500-people-hurt-idUSLNE91E00G20130215|url-status=live}}</ref>