[Mike Darancette]

Looking at the picture I'm surprised that this was not hypothesized sooner.

[Mike Darancette]

PING

[Virginia Ridgerunner]

[El Sordo]

Coooool.

[Redcitizen]

” Lake Cheko may have formed due to a secondary impact onto alluvial swampy ground “

Aha! Now we know where the Golgafrinchians landed.

http://www.nostalgiacentral.com/tv/comedy/hitchhikers.htm

[Abathar]

It has, one of the science channels did a show on it, they hypothesized about that lake and took samples from it years ago. I think the majority consensus was a comet made up of smaller stones and ice that exploded, causing a huge bang but not a lot of large debris laying around.

[BJClinton]

Catastrophism ping?

[theDentist]

There was a Russian geologist who theorized something very close, believing that the remains of the asteroid or meteor broke up into several pieces, drove into the earth, and that permafrost etc melted enough to create swamps in an already swampy land. He was researching for several years, but volunteered when Germany invaded, and was captured and died in a prison camp.
Learned that on History channel, but i forget his name.

[Andonius_99]

an artist's rendition of what may have caused the impact...

[BallyBill]

I get a "cookie error" when I click on link. I'll try IE. Same absent cookie.

Oh well, I guess it has been there for almost 100 years. It'll still be there later.

[JRios1968]

[KingLiberty]

First time I’ve hear this, and it may solve a long-time mystery. This should get more geological studies to the area funded.

[NYFreeper]

"You just have been a participant in the biggest interdimensional cross-rip since the Tunguska blast of 1909!"

[the final gentleman]

"Cheko, a small lake located 8 km from the alleged epicentre of the 1908 Tunguska Event, has an unusual funnel-like bottom morphology, with ~50 m maximum water-depth near the center and a 0.16 depth-to-diameter ratio.

...A prominent reflector observed in seismic reflection profiles ~10 m below the bottom at the center of the lake indicates a sharp density/velocity contrast, compatible with either the presence of a fragment of the body, or of material compacted by the impact. Drilling could solve this dilemma."

Nice summary.