31. Immediately to the north are the headwaters of both the Lower Tunguska and the Podkamennaya Tunguska . 32. All of the upper stream of " Nizhnyaya Tunguska " is within the Irkutsk Oblast. 33. The Tunguska object is said to have been the equivalent of a 10-20 megaton nuke. 34. Within the context of the stories, Meshkov is a meteor which arrived during the Tunguska event. 35. Huge meteors which explode, like the Tunguska event, can be heard over the long distances. 36. He believed the Tunguska impact was caused by an alien spacecraft that crash-landed on the Earth. 37. The Tunguska entered into limited service from 1984, when the first batteries were delivered to the army. 38. Development as Pantsir-S started in 1990 with a plan to be a successor of Tunguska M1. 39. He took part in expeditions to the Sayan Mountains, Irkut River Valley and the Lower Tunguska River. 40. The only recorded major strike by a meteor or comet occurred in 1908 in the Tunguska region of Siberia.
