Aribeth says: Kashmir earthquake, 2005 178 megatone TNT Caused damage in Islamabad, 65 miles away. Mount St. Helena eruption, 1980 500 megatons TNT Devastaled several hundred square mil areas San Francisco eartquake, 1906 1 gigaton TNT Caused $5.6 billions in property damage Krakatoa eruption, 1883 5.6 gigatons TNT Worldwide effects included the destruction of 165 villages and towns 10 km asteroid impact, 65 millions years ago 100.000 gigatons. TNT Caused final extinction of dinosaurs and many other species An asteroid impact with the Earth may have caused the extinction of the dinosaurs. The Alvarez Asteroid Theory explains the huge K-T (Cretaceous-Tertiary) mass extinction 65 million years ago by a large asteroid hitting the Earth off the Mexican Yucatan peninsula. This impact would have caused severe climactic changes leading to the demise of many groups of organisms, including non-avian dinosaurs. Mother Nature seems to do very well for herself! New Madrid earthquakes of 1811 to 1812--in the range of the 1906 San Francisco earthquake in the 1 gigaton range. |
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