The energy emission in the “Anfinogenov spindles”. h – height from the Earth surface; r – distance from Fast epicenter. The summary shock wave from the three fragments has an inclination angle of ~45°.

From Madrid Planetarium: uprooted trees photographed by the expedition of the University of Bologna (1991).

Longo G.: The Tunguska event. In the book: "Comet/Asteroid Impacts and Human Society, An Interdisciplinary Approach, Bobrowsky, Peter T.; Rickman, Hans (Eds.).", 546 p., © Springer-Verlag, Berlin Heidelberg New York, 2007 (Chapter 18 pdf, 18.895 Mb).