It is believed that the Zhamanshin crater is the site of the most recent meteorite impact event of the magnitude that could have produced a disruption comparable to that of nuclear winter, but it was not sufficiently large to have caused a mass extinction.
Se crede că craterul Zhamanshin este situl celui mai recent eveniment de amploare a unui impact meteoritic, care ar fi putut produce o perturbare comparabilă cu cea unei ierni nucleare, dar nu a fost suficient de mare pentru a fi cauzat o extincție în masă.