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Yu. A. Kugaenko

Other affiliations: Geophysical Survey
Bio: Yu. A. Kugaenko is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Volcano & Seismic noise. The author has an hindex of 7, co-authored 23 publications receiving 192 citations. Previous affiliations of Yu. A. Kugaenko include Geophysical Survey.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the main results from the development of the detailed seismological observation system in Kamchatka and the information on the system as of 2011 are presented, including the networks of seismological stations, the systems for the acquisition, storage, and processing of seismic observations and their technical, methodological, and software support.
Abstract: This paper presents the main results from the development of the detailed seismological observation system in Kamchatka and the information on the system as of 2011. We describe the networks of seismological stations, the systems for the acquisition, storage, and processing of seismological observations and their technical, methodological, and software support. We discuss the basic characteristics of the recording channels and the system as a whole. We present the information resources of the Kamchatka seismological data bank that provide for basic research in earth sciences. In 2011, the system of seismological observation in Kamchatka was a specialized network for acquisition (recording), storage, transmission, and processing of seismic and geophysical data that provides support for the effective monitoring of seismic and volcanic activities, as well as tsunami warning.

68 citations

Journal Article
TL;DR: A year after the extreme events on the Sun, in the heliosphere, and on the Earth in October-November 2003 [Veselovsky et al. as mentioned in this paper, a similar situation was also observed in November 2004.
Abstract: A year after the extreme events on the Sun, in the heliosphere, and on the Earth in October–November 2003 [Veselovsky et al. , 2004; Panasyuk et al. , 2004; Yermolaev et al. , 2005], a similar situation was also observed in November 2004. The main data observed when the strongest magnetic storm with Dst = –373 nT occurred on the Earth are presented in the paper prepared mainly by the participants of the last year’s collaboration of native researchers of extreme events. The disturbance of the Sun, solar wind, and magnetosphere during the considered period was weaker than during the similar period in 2003 with respect to a number of parameters; nevertheless, the presented data indicate that the decline phase of solar cycle 23 is one of the most active intervals over the entire period of comprehensive studies of the solar–terrestrial coupling owing to the events that occurred in autumn 2003 and 2004.

51 citations

Journal ArticleDOI
TL;DR: In this article, a monitoring study in high frequency seismic noise in Kamchatka during 1992-2006 was conducted and the results were used for predicting large regional earthquakes in an epicentral distance range Δ within 400 km.
Abstract: This paper presents results from a monitoring study in high frequency seismic noise in Kamchatka during 1992–2006 and reports their use for predicting large regional earthquakes (M ≥ 6.0) in an epicentral distance range Δ within 400 km. The prediction is based on an original method using earth tides as the standard external excitation to study patterns of seismic emission. The method as used at present is described in detail. Guidelines are delineated for future refinement of the prediction method.

16 citations

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed seismic and GPS data to reveal synchronous precursory anomalies in crustal deformation and seismicity that lasted approximately 4 months (August to November 2012).
Abstract: —This paper is concerned with ground deformation and seismicity prior to the Tolbachik Fissure Eruption, which began in Kamchatka on November 27, 2012. Seismic and GPS data were analyzed to reveal synchronous precursory anomalies in crustal deformation and seismicity that lasted approximately 4 months (August to November 2012). The seismic anomaly was a statistically significant increase of seismicity with low energy (mostly K S = 4–6) beneath the Ploskii Tolbachik Volcano edifice at depths of less than 5 km. The rates of seismicity and seismic energy release were exceeded by factors of approximately 40 compared with the 2000–2011 mean values during the 2 to 3 weeks immediately before the eruption. The strain anomalies were observed as movements in the middle of the Klyuchevskoy volcanic group: a radial (relative to the eruption) compression and an extension in the tangential direction. The strain had reached ~ 10–7 by the beginning of the eruption. The durations of the seismic and strain anomalies were comparable in value (~ 4 months before the eruption), thus providing evidence of a common origin. We can classify them as belonging to the same time scale of precursors (the intermediate-term in the accepted terminology).

14 citations

Journal ArticleDOI
TL;DR: In this paper, the configuration of the magmatic feeding system of the Tolbachinsky Dol, a regional zone of areal basaltic volcanism in the southern part of the Klyuchevskoy volcano group in Kamchatka, is studied.
Abstract: With the use of the method of low-frequency microseismic sounding, the configuration of the magmatic feeding system of the Tolbachinsky Dol—a regional zone of areal basaltic volcanism in the southern part of the Klyuchevskoy volcano group in Kamchatka—is studied. The initial data are obtained by a stepby-step recording of the background microseismic noise in 2010–2015 within a thoroughly marked-out survey area covering the zones of fissure eruptions in 1975–1976 and 2012–2013 and, partly, the edifice of the Ploskii (flat) Tolbachik volcano. The depth sections reflecting the distributions of the relative velocities of seismic waves in the Earth’s crust are constructed. For a more reliable interpretation of the revealed deep anomalies, the results of independent geological and geophysical studies are used. The ascertained low-velocity structures are closely correlated to the manifestations of present-day volcanism. It is shown that the feeding structure of the Tolbachinsky Dol is spatially heterogeneous, incorporating subvertical and lateral pipeshaped magma conduits, closely spaced magma feeding channels, and shallow magma reservoirs. A longlived local transcrustal magma conducting zone is revealed, and regularities in the deep structure of the feeding systems of fissure eruptions are identified. The configuration of the established subvertical magma conduits permits basalts moving to rise to the surface by different paths, which, inter alia, explains the contrasting magma compositions observed during a single eruption. Thus, based on the instrumental data, it is shown that the magmatic feeding structure of the Tolbachinsky Dol has a number of specific peculiarities and is significantly more complicated than has been previously thought about the areal volcanic fields.

12 citations


Cited by
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N.U. Crooker1
01 Jan 1904
TL;DR: The past decade has brought advances in several areas of solar-terrestrial physics which, when combined, provide nearly all of the pieces necessary for predicting geomagnetic storms as mentioned in this paper.
Abstract: The past decade has brought advances in several areas of solar-terrestrial physics which, when combined, provide nearly all of the pieces necessary for predicting geomagnetic storms. Advances in techniques for observing the Sun in X-rays and white light allow identi cation of solar disturbances headed toward Earth. Advances in our understanding of how the resulting heliospheric disturbances re ect aspects of the Sun’s magnetic eld allow predictions of their magnetic topology and, hence, provide some measure of the geoe ective southward component which they carry. Advances in our understanding of the relationship between transient heliospheric disturbances and high-speed streams and how storm strength depends upon solar wind density and the magnetic polarity of streams allow substantial re nement for prediction schemes. c © 2000 Elsevier Science Ltd. All rights reserved.

93 citations

Journal ArticleDOI
TL;DR: In this article, a broad overview of the 2012-13 flank fissure eruption of Plosky Tolbachik Volcano in the central Kamchatka Peninsula is presented, which lasted more than nine months and produced approximately 0.55 km3 DRE (volume recalculated to a density of 2.8 g/cm3) of basaltic trachyandesite magma.

71 citations

01 Jan 2008
TL;DR: In this article, the complex interplanetary structures during 7 to 8 Nov 2004 were analyzed to identify their properties as well as resultant geomagnetic effects and the solar origins and two reverse waves were detected and analyzed in detail.
Abstract: [1] The complex interplanetary structures during 7 to 8 Nov 2004 are analyzed to identify their properties as well as resultant geomagnetic effects and the solar origins. Three fast forward shocks, three directional discontinuities and two reverse waves were detected and analyzed in detail. The three fast forward shocks “pump” up the interplanetary magnetic field from a value of ∼4 nT to ∼44 nT. However, the fields after the shocks were northward, and magnetic storms did not result. The three ram pressure increases were associated with major sudden impulses (SI + s) at Earth. A magnetic cloud followed the third forward shock and the southward Bz associated with the latter was responsible for the superstorm. Two reverse waves were detected, one at the edge and one near the center of the magnetic cloud (MC). It is suspected that these “waves” were once reverse shocks which were becoming evanescent when they propagated into the low plasma beta MC. The second reverse wave caused a decrease in the southward component of the IMF and initiated the storm recovery phase. It is determined that flares located at large longitudinal distances from the subsolar point were the most likely causes of the first two shocks without associated magnetic clouds. It is thus unlikely that the shocks were “blast waves” or that magnetic reconnection eroded away the two associated MCs. This interplanetary/solar event is an example of the extremely complex magnetic storms which can occur in the post-solar maximum phase.

57 citations

Journal ArticleDOI
TL;DR: Shapiro et al. as mentioned in this paper presented a study of the Kamchatka Branch of the Geophysical Service, Russian Academy of Sciences, 9 Piip Boulevard, Petropavlovsk-Kamchatsky, Russia.
Abstract: D.V. Droznin,1 N.M. Shapiro,2,3 S. Ya. Droznina,1 S.L. Senyukov,1 V.N. Chebrov1 and E.I. Gordeev3 1Kamchatka Branch of the Geophysical Service, Russian Academy of Sciences, 9 Piip Boulevard, Petropavlovsk-Kamchatsky, Kamchatsky Region, Russia 2Institut de Physique du Globe de Paris, Paris Sorbonne Cité, CNRS, 1 rue Jussieu, F-75238 Paris cedex 05, France. E-mail: nshapiro@ipgp.fr 3Institute of Volcanology and Seismology FEB RAS, 9 Piip Boulevard, Petropavlovsk-Kamchatsky, Kamchatsky Region, Russia

48 citations