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Geology (204)
GEOL 2207 (204)
J.Finnis (74)
Lecture

Recent History of Impacts.docx

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Department
Geology
Course
GEOL 2207
Professor
J.Finnis
Semester
Summer

Description
Recent History of Impacts Tunguska, SIBERIA: June 30, 1908 - Large explosion of 8 km of an extraterrestrial object breaking up in atmosphere o Shockwaves traveled through earth twice o Might have been a fragment of comet Enke, which was passing close by Earth at the time o Over 80 million trees knocked over  Size of Washingon DC Asteroids NEAR MISSES: 1989, 1996, 2009, 2011 - March 22, 1989 o 500 m asteroid missed Earth by 5 hours o impact c
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