[meteorite-list] Russian meteor video Emanzhelinsk: 90 sec shockwave delay

[Robin Whittle]

Here is a video:

http://krasview.ru/video/342138-METEORIT_15_02_2013g_Chelyabinsk_Chel.obl._g.Emanjelinsk.

with the final part of entry clearly visible, and then with multiple
windows in a 5 storey building being blown in.  This is taken with the
same dashboard camera.  The 90 time delay can be measured accurately
from the meteor being at maximum brightness roughly overhead.  This was
a little south of the path.  The translation of the title is:

DVR METEORITE 15 February 2013 Chelyabinsk Chel.obl. g.Emanzhelinsk.

Using Google Maps for Еманжелинск I found the exact location.  Just at
or after the peak brightness, the car goes under a pipeline, which is
visible with its shadow, directly SW of the L shaped building at
54.75639 N, 61.304564 E.

https://maps.google.com/maps?q=%D0%95%D0%BC%D0%B0%D0%BD%D0%B6%D0%B5%D0%BB%D0%B8%D0%BD%D1%81%D0%BA&hl=en&ie=UTF8&ll=54.75639,61.304564&spn=0.002393,0.004249&sll=-37.73563,145.07369&sspn=0.05247,0.036392&t=h&hnear=Yemanzhelinsk,+Yemanzhelinsky+District,+Chelyabinsk+Oblast,+Russia&z=18

The overhead brightest part is around 6:23.  The shockwave arrives at
7:53.  Someone with better knowledge of sound propagation, given the
very high intensity of the shockwave near the meteor, could probably
come up with a good estimate of distance within 1 km.

 - Robin     http://astroneu.com   (Melbourne Australia)