V. I. Andreev 1, A. V. Andreev2, T. Yu. Samkova1, O. V. Sobovelskaya3

1Institute of Volcanology and Seismology FED RAS, 683006, Petropavlovsk-Kamchatsky, Piip boulevard, 9;
phone (41522) 5-93-87, fax (41522) 5-94-05; e-mail: via@kscnet.ru
2Kamchatka State Technical University 3Kamchatka State University named after Vitus Bering

The Big fissure Tolbachik eruption (BFTE) was one of the most significant events of the 20th century, the erupted products total volume was 2.2 km3 and the impact on the environment was significant. This paper presents some results of different environmental parameters measurements during the 1975-1976 Tolbachik volcano eruption and till the year 2005. The studied area includes eruptive centers and the nearby territory within a radius of 10 km. The main investigated parameters were: the relief, the deformations, the radioactivity, the deep-frozen soil areas; the biota, the temperature anomalies.