A5073797187- earthquake and tectonic studies
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Seismology and Earthquake Studies
- Methane Hydrates and Related Phenomena
- Seismic Waves and Analysis
- Geological Studies and Exploration
- Geotechnical and Geomechanical Engineering
- Marine and environmental studies
- Legal and Regulatory Analysis
- GNSS positioning and interference
- Geological Modeling and Analysis
- Inertial Sensor and Navigation
- Geophysics and Sensor Technology
- Geophysics and Gravity Measurements
- Cultural, Linguistic, Economic Studies
- Cell Image Analysis Techniques
- Energy Efficient Wireless Sensor Networks
- Aquatic and Environmental Studies
- Seismic Imaging and Inversion Techniques
- Ionosphere and magnetosphere dynamics
- Geological and Geophysical Studies Worldwide
- Atmospheric and Environmental Gas Dynamics
- Astro and Planetary Science
Geophysical Survey
2018-2024
Russian Academy of Sciences
2011-2023
Schmidt Institute of Physics of the Earth
2007-2023
Geophysical Center
2019
The occurrence and the style of volcanic eruptions are largely controlled by ways in which magma is stored transported from mantle to surface through crust. Nevertheless, our understanding deep roots volcano-magmatic systems remains very limited. Here, we use sources seismovolcanic tremor delineate active part magmatic system beneath Klyuchevskoy Volcanic Group Kamchatka, Russia. distributed a wide spatial region over whole range crustal depths connecting different volcanoes group. activity...
Abstract Klyuchevskoy and surrounding volcanoes in central Kamchatka form the Northern Group of Volcanoes (NGV), which is an area particularly diverse intensive Pleistocene‐Holocene volcanism. In this study, we present a new seismic tomographic model crust uppermost mantle beneath NGV based on local earthquake data recorded by several permanent temporary networks including large‐scale experiment that was conducted 2015–2016 international scientific consortium. Having unprecedented resolution...
he study presents a rupture surface model of the Shipunsky earthquake. The consists single plane with dip angle 30°, strike 211°, and depths ranging from 25 to 49 km. Compared USGS solution, is shifted away continent extended along dip, which corresponds better aftershock cloud distribution according Kamchatka branch Federal Research Center «Unified Geophysical Service RAS». exhibited nearly pure thrust, maximum displacement 0.88 m an average 0.79 m, corresponding seismic moment 2.9×1019 N·m...
Global Navigation Satellite Systems have been extensively used to investigate the ionosphere response various natural and man-made phenomena for last three decades. However, ionospheric reaction volcano eruptions is still insufficiently studied understood. In this work we analyzed 11–16 June 2009 VEI class 4 Sarychev Peak eruption by using surrounding Russian Japanese GPS networks. Prominent covolcanictotal electron content (TEC)ionospheric disturbances (CVIDs) with amplitudes periods ranged...
The seismicity of Kamchatka and surrounding territories for 2013 is viewed. minimum local magnitude completeness MLmin=3.25 in the earthquake catalogue totally, MLmin=4 earthquakes under Okhotsk sea (with h≥350 km). with ML≥3.6, which includes 1750 events, published. 146 published catalog ML=3.6–7.8 were felt seismic intensity ranged from 2 to 7 MSK-64 scale areas. Focal mechanisms determined two ways: 1) first motion P-wave arrivals 107 earthquakes; 2) using waveforms 25 earthquakes....
The paper presents the first results of integrated research strong seismic event (Uglovoye Podnyatiye earthquake (UPE) with a magnitude Mw=7.3) that occurred on December 20, 2018 in junction zone between Kuril-Kamchatka and Aleutian island arcs. authors has provided macroseismic information about UPE, calculated peak ground accelerations moment tensor, described briefly forshock aftershock processes, as well summarized data precursors. UPE was reported to be felt at distances up 500 km....
Abstract Studies of initiation large earthquakes are usually focused on frictional instabilities occurring in the near vicinity future rupture. Possible contributions long‐distance interactions with large‐scale tectonic remain unknown. Here we analyze seismic catalogs and geodetic time series during a few months preceding 2013 M = 8.3 deep‐focus Okhotsk earthquake. This event is preceded by four intense clusters seismogenic zone. GNSS Kamchatka revealed transient landward motion episode 1...
In this paper we present brief review of results Kamchatka Seismic Monitoring and Earthquake Prediction System operations in the last five years. addition, retrospective development hardware, equipment software performed. The main direction evolution period concerned creation modernization data acquiring pro-cessing methods. One is basic informational space, that includes all pro-cesses if seismic observations, from till exchange (including external users) da-ta processing results....
The mechanisms of preparation and occurrence the strongest deep-focus earthquakes with MW≥8, as well their surface manifestations, remain insufficiently studied because lack relevant data. There are but three seismic events this kind which have so far been instrumentally recorded. This paper describes identification analysis changes in characteristics modern crustal movement 2013, MW 8.3 Sea Okhotsk earthquake based on data from long-term continuous geodetic-class GNSS stations region...
The article presents instrumental and macroseismic data on the Paramushir earthquake of March 25, 2020, ML=7.7, Mw=7.4, discusses its tectonic position features aftershock process. This event is strongest instrumentally recorded with a source located in Pacific lithospheric plate area Northern Kuril Islands. focal mechanisms moment magnitude values Mw aftershocks were obtained using an original method for calculating seismic tensors, de veloped at Кamchatka branch Geophysical Survey RAS. was...
The strong Mw = 7.4 earthquake occurred on March 25, 2020 in the region of Northern Kuril Islands, with its epicenter ocean side Kuril-Kamchatka deep-water trench, to east from axis. was felt all South and East Kamchatka, maximum shaking recorded Severo-Kurilsk intensity I VI–VII. Distinct tsunami wave also registered. In article, this tectonic position are discussed context seismicity arc. actions duty shifts processing described, a detailed description macroseismic effects is given....
The neural network approach is proposed for studying very-low- and low-frequency (VLF LF) subionospheric radio wave variations in the time vicinities of magnetic storms earthquakes, with purpose recognizing anomalies different types. We also examined days quiet geomagnetic conditions absence seismic activity, order to distinguish between disturbed signals ones. To this end, we trained (NN) on examples representative database. database included both VLF/LF data that was measured during...
The February 28, 2013 earthquake (MwGCMT=6.8), which occurred on the southeast coast of Kamchatka, is discussed. instrumental hypocenter location reported by KB GS RAS φ=50.67N, λ=157.77E, h=61 km. Three magnitudes were obtained: local magnitude ML=6.9, code-wave Mc=6.6, mo-ment Mw=6.7. focal mechanisms and its aftershocks with ML≥6 correspond to tectonic conditions subhorizontal compression in NW–SE direction. For most these mechanisms, shallow plane falls under corresponds geometry...
Abstract The scaling behavior of rise times Tr determined within earthquake source inversions that used strong‐motion data is using estimates as accumulated in the SRCMOD database. versus M0 trend derived from this set close to logTr=1/3logM0+ const; agrees with assumption self‐similarity ruptures. No biasing effect station distance on was found. result compared recent based mass teleseismic inversions. Absolute levels and local match well; slope somewhat more gradual. absolute trends...
The seismicity review of Kamchatka and surrounding territories for 2016–2017 is given. In the earthquake catalogue, minimum local magnitude completeness MLmin=4.0, earth-quakes with h≥350 km under Okhotsk sea MLmin=4.3. catalogue earthquakes ML=3.6–7.3 2016–2017, published in Appendix to this article, includes 2898 events. 191 were felt areas seismic intensity I=2–6 according MSK-64 scale. For all events ML≥5.0 that occurred within area responsibility branch Geophysical Survey RAS, an...
The seismicity review of Kamchatka and surrounding territories for 2018–2019 is given. In the earthquake catalogue, minimum local magnitude completeness MLmin=3.8, seismically active region (latitude = 50.5–56.5° N, longitude 156.5–167° E) MLmin=3.7, earthquakes with h≥350 km under Okhotsk sea MLmin=3.8. catalogue 2018–2019, published in Appendix to this article, includes 3646 events ML≥3.5; 228 ML=3.65–7.3 were felt areas seismic intensity I 1–2 6–7 according Seismic Intensity Scale-2017...