November 19, 2014
The huge flash occurred last Friday although it has not been until now that the videos have begun to be published on the Internet. The images were recorded in the Sverdlovsk region near the city of Yekaterinburg. According to several witnesses and local media, there was no sound accompanying the flash. Police and local authorities have so far offered no explanation and Russian observatories did not record any meteorite fall in the area that day.
Local media point to what could be the most likely explanation for the flash: a chemical plant located in the area that could be the cause of the flash or explosion and its subsequent reflection in the sky. In this other video it is better appreciated from another angle, and a possible source of the explosion at the end at a point on the horizon:
via They record a huge explosion in the sky in Russia.
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