200709182005
There are some news reports from Peru (1,2) that a meteor struck the ground near a village in the Andes. According to news report, the crater is either 10 or 30 meters wide and is emanating noxious fumes that are causing nausea, vomiting, and other sickness. Despite reports of a fireball in the night sky, the folks at Spaceweather.com argue that any impact large enough to create a 30 meter wide crater would be equivalent of 1 kiloton of TNT. This would be a tactical (meaning smallish) nuclear sized explosion comparable to the North Korean nuclear test. Such a large explosion would leave a seismic and acoustic signature. No such signature was detected.
Furthermore, most meteors are either chunks of iron-nickel metal or rather ordinary rocks. A few very rare meteors contain organic matter. I cannot recall any that emanated fumes.

I agree with Spaceweather that this was probably not a meteor. I guess there is a chance that it could have been a water-rich icy body comet fragment but I think it is more likely that the crater had a terrestrial origin. I think it may be a mud volcano that is producing toxic gasses such as methane, water, and perhaps other hydrocarbons. Many hydrocarbons can cause illness. The Andes are very active geologically so I think there is a good possibility that this crater was caused by an outburst of geothermal activity. As for the fireball, fireballs are quite common (check out this video of a New Mexico fireball from September 13) and it possibly was a coincidence. One possible scenario is that the people who saw the fireball just happened on a recently formed mud volcano while they were out looking for the fireball impact site.

What ever caused this crater was an interesting phenomenon, and I hope to see some more concrete news soon. Anyone up for a field trip?