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http://www.physorg.com/news167373533.htmlJupiter has a cross-section, about 120 times as big as Earth. Also, a tremendous gravitation to attract stuff. In summary, these catastrophes should be more frequent on Jupiter than on Earth.
Note, however, that in 1908 there was something - apparently an asteroid - that hit Earth (in Siberia), causing a damage equivalent to several atomic bombs.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)