Asteroid Day Expert Panel Q&A

Recent Astroid Strike in Russia [Chelyabinsk]

253 views February 17, 2015 adexpertpanel 0

QUESTION FROM LINDA STEPP

I read an article that stated the meteor struck in the lake; was this true, and can they estimate how large it was on impact?

ANSWER BY PETER BROWN (ADXP)

Dear Linda

The main meteorite mass recovered from the bottom of Lake Cheberkal weighed about 600 kg and was actually video recorded impacting the lake by a security camera on shore. By looking at how the fragment slowed down in the atmosphere from the many dashcam recordings of the fireball, the initial estimate put its mass around 400-500kg, which turned out to be very close to what was recovered.

Peter Brown

p.s.  Here’s a pretty neat picture of the hole in Lake Cheberkal (from Universetoday.com)  – (content added by Rusty Schweickart)

Chelyabinsk impact on ice. February 15, 2013.

Chelyabinsk impact on ice. February 15, 2013.

1 Comments
  • Avol says:

    Science has proven that mssiave asteroids have hit the earth in the past and caused severe changes in weather, atmosphere, etc. Could one hit us in 2012? Sure could. One could hit tomorrow for all we know. Will we feel any pain? Depends on where the asteroid hits and where you are at. Some of us will be vaporized immediately, others will linger as the skies darken and snow flies, ash descends, crops shrivel up and die, water becomes undrinkable. It is not a nice picture.

    February 18, 2016 at 10:55 pm

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