About 2002 AW197
EXAMPLES:
Soufrière Hills Volcanic Eruption (Montserrat): July 12, 2003
M 6.0 Earthquake in Celebes Sea: July 01, 2003
Fuego Volcanic Eruption (Guatemala): June 29, 2003
Colima Volc. Erupt. (Mexico): October
24, 2002
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About 2000 OO67
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About Orcus (2004DW)
Examples:
Chernobyl Nuclear Catastrophe - 1986
Three Mile Island Nuclear Power Plant Accident - 1979