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**Raj_Copi_Jin** · 10-17-2007, 04:49 PM

http://www.lpl.arizona.edu/impacteffects/

Test for yourself [thumbup]

Edit: Here's a good question that is not modelled there. What kind of nasty stuff would happen when the transient crater from the impact is deep enough to puncture Earth's crust and bring up lava from the upper mantle?
Tsunamis are also not modelled there but I imagine a large ocean impact in the Pacific could do more total damage casualty-wise than any land impact due to the massive tsunami that would devastate costal areas where people tend to congregate.

An asteroid big enough to puncture an impact crater deeper than several kilometres (which would be needed to open up the crust) would be... err, pretty serious. Chicxulub serious. Lava would be the least of your worries.

Didn't you already say the biggest effects would be the earthquakes and volcano eruptions occurring after an impact? Also, from going with that the most likely impact won't consists off anything with a higher density then compact rock wouldn't the energy released by impact ignite the atmosphere? Just something I assume from that link Insane gave before, as when the mass is high enough but the density isn't set to near iron levels, the results indicate a much larger percentage of the earth would melt when compared with an impact off greater density.

Idk, maybe a greater density means a smaller area off effect, and more noticeable changes in orbit and and rotational shift. Still sounds better to me then being hit with an astroid off the same size but lesser weight, as 100.00 percent of the Earth is melted is something that looks more serious then a small rotational shift, think the human race could cope with changing climate bands allot better then... well a burnt atmosphere?

10-17-2007, 04:49 PM	#20
Raj_Copi_Jin Join Date Oct 2005 Age 48 Posts 4,533 Senior Member	http://www.lpl.arizona.edu/impacteffects/ Test for yourself [thumbup] Edit: Here's a good question that is not modelled there. What kind of nasty stuff would happen when the transient crater from the impact is deep enough to puncture Earth's crust and bring up lava from the upper mantle? Tsunamis are also not modelled there but I imagine a large ocean impact in the Pacific could do more total damage casualty-wise than any land impact due to the massive tsunami that would devastate costal areas where people tend to congregate. An asteroid big enough to puncture an impact crater deeper than several kilometres (which would be needed to open up the crust) would be... err, pretty serious. Chicxulub serious. Lava would be the least of your worries. Didn't you already say the biggest effects would be the earthquakes and volcano eruptions occurring after an impact? Also, from going with that the most likely impact won't consists off anything with a higher density then compact rock wouldn't the energy released by impact ignite the atmosphere? Just something I assume from that link Insane gave before, as when the mass is high enough but the density isn't set to near iron levels, the results indicate a much larger percentage of the earth would melt when compared with an impact off greater density. Idk, maybe a greater density means a smaller area off effect, and more noticeable changes in orbit and and rotational shift. Still sounds better to me then being hit with an astroid off the same size but lesser weight, as 100.00 percent of the Earth is melted is something that looks more serious then a small rotational shift, think the human race could cope with changing climate bands allot better then... well a burnt atmosphere?
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