The article presents data on horizontal and vertical surface deformations obtained during geodetic measurements in 1976-2011 around the North Vent of the 1975-1976 Greate Fissure Tolbachik Eruption. Instrumental measurements of the relative vertical deformations show lowerings to 233 cm associated with the surface deflection due to formation of cinder cones and thick deposits of fresh lavas. The decrease of baselines suggests horizontal compressive strains caused by stress relief, arisen during the eruption, and volume reduction of cooling-down near-surface basalt dykes.

Nizhne-Koshelevsky New thermal field is located on the watershed between Gremuchiy and Pryamoy brooks in close proximity (300-400 m) to the well-known Nizhne-Koshelevsky thermal anomaly. It was found in 2008 year as a result of vegetation burn on the area of 200 х 200 m and rise of ground temperature up to 100 ºC in the central part of the field. Starting from 2009, the given new formed field has been annually observed (in summer field working period): areal temperature surveyings and lithogeochemical (mercurymetrical) testings of soil-pyroclastic deposits are conducted, their section studies in the central and periphery of the field are carried out, vegetation boundary changes are registered, geophysical works are organized. The change of temperature and geochemical conditions of the thermal field over a period from 2009 to 2013 is also traced. Generalization of findings and regular researches continuation in the area of Nizhne-Koshelevsky New thermal field will make it possible to answer the question about the nature of the given phenomenon.

The geological characteristic of the Koshelevsky volcanic massif, in the area of which the biggest in Kamchatka Nozhne-Koshelevsky steam dominant geothermal deposit and thermal anomaly of the same name locate is presented in this work. The detailed chart of magnetic anomalies ΔTa is made for the area of 1.5 km2.

The Taketomi break at Atlasov island was a unique observed submarine eruption within the Kurile island arc which actually gave birth to a new subordinate volcano. Taketomi subordinate volcano is a unique natural object for detailed interdisciplinary research.