scholarly journals SEISMICITY of the NORTH-EAST of RUSSIA in 2015

2021 ◽  
pp. 164-172
Author(s):  
E. Alyeshina ◽  
S. Kurtkin ◽  
L. Karpenko
Keyword(s):  
Seismic Energy ◽  
Okhotsk Sea ◽  
Minimal Energy ◽  
Magadan Oblast ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
Deep Faults ◽  
Weak Earthquakes ◽  
Observation Period

The results of seismic monitoring of the Magadan oblast, the Chukotka Autonomous okrug, and the shelves of the adjacent seas (Okhotsk, Chukchi, Bering, and East Siberian seas) are considered. There were 14 seismic stations working in the region. The new station “Gadlya” was opened on the Okhotsk sea coast. The catalog includes information about 290 earthquakes with energy classes KR=4.4–12.6. As usual, most of them (93 %) are localized in the Kolyma region. The total seismic energy released within the region’s borders was ΣЕ=4.6341012 J. According to the earthquake energy completeness map Кmin built for the region, minimal energy level of earthquakes, Кmin=5.0, is provided at two areas near the Susuman and Magadan stations. The station network can register without omissions the earthquakes with Kmin≥8 at the Okhotsk sea and Kolyma areas, with Kmin≥10.6 in the Chukotka area. In 2015 three earthquakes with intensities I=2–4 by MSK-64 scale were felt in settlements of North East of Russia. The 2015 strongest earthquake occurred on June 1 at 10h53m with KR=12.6 (MPSP=4.9), h=31 km in the Kolyma area. A maximum shaking intensity of I=4 was observed in Omsukchan settlement (∆=132 km). In March 2015 a swarm of 29 weak earthquakes with KR=6.2–9.8 occurred northeast of Talaya settlement. Epicenters of Kolyma area earthquakes were plotted on the tectonic zoning map of the Magadan region. Most earthquakes are confined to the main deep faults oriented in the northeastern and sublatitudinal directions. All hypocenters are located within the Earth's crust. The seismicity level of the North-East of Russia in 2015 according to the “SOUS09” scale was assessed as "background average" for the observation period from 1968 to 2015. Spatially, all earthquakes in the North-East of Russia are traditionally concentrated within the major seismogenic belts – Chersky, North-Okhotsk, and Trans-Beringian.

scholarly journals NORTH-EAST OF RUSSIA

2020 ◽  
pp. 183-191
Author(s):  
E. Alyeshina ◽  
S. Kurtkin ◽  
L. Karpenko
Keyword(s):  
Bering Sea ◽  
Seismic Energy ◽  
Okhotsk Sea ◽  
Monitoring Equipment ◽  
Seismic Stations ◽  
Earthquake Energy ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
Sea Area

The results of seismic monitoring of Magadan region, Chukotka Autonomous Area and adjacent sea shelf (Okhotsk, Chukchi, Bering and East Siberian seas) are given. The information about 12 digital seismic stations and monitoring equipment types and parameters is given. Maps of earthquake energy representativeness, seismic stations and epiсenters are presented. The distribution of earthquake number by energy classes and total seismic energy by six regions of North-East of Russia is given. The information about 234 events with energy classes КР=6.0–12.8 is included in the catalog. All hypocenters are located within the Earth's crust. Earthquake epicenters in Kolyma area are plotted on the tectonic zoning scheme. The strongest earthquake in 2014 with MPSP=4.5 (КР=12.8) occurred on July 4 in Kolyma area and was called Elgenskoe II. It was sensible with intensity I=4. Monitoring in 2014 showed decrease of seismic activity in Okhotsk sea area and its increase in the Kolyma. Spatially, all the earthquakes of the North-East of Russia are traditionally concentrated within the large seismogenic zones: the Chersky, the North Okhotsk and the Trans-Bering Sea.

scholarly journals NORTH-EAST OF RUSSIA

2019 ◽  
pp. 214-223 ◽  
Author(s):  
E. Alyeshina ◽  
S. Kurtkin ◽  
L. Karpenko ◽  
B. Sedov
Keyword(s):  
Bering Sea ◽  
Seismic Energy ◽  
Seismic Monitoring ◽  
Magadan Oblast ◽  
Monitoring Equipment ◽  
Seismic Stations ◽  
North East ◽  
The North ◽  
Border Areas

The seismic monitoring results of Magadan Oblast, Chukotka Autonomous Okrug, and adjacent sea shelfs (of Okhotsk, Chukchi, Bering, and East Siberian seas) are analyzed. The information about 14 digital seismic stations, as well as monitoring equipment types and parameters, is given. The maps of earthquakes energy representativeness, seismic stations, and epicenters are presented. The distributions of earthquakes number by energy classes and the total amount of seismic energy across six regions and border areas of North East are provided. The catalog includes information about 252 events with energy classes КR from 5.4 to 13.8. The earthquake epicenters of the Kolyma region are marked on the tectonic zoning scheme of Magadan Oblast. All earthquakes in North-East of Russia are spatially associated with the major seismogenic belts: the Chersky, the North Okhotsk and the Trans-Bering Sea

The Chingandzha flora of the Okhotsk-Chukotka volcanic belt

Palaeobotany ◽  
2019 ◽  
Vol 10 ◽  
pp. 13-179
Author(s):  
L. B. Golovneva
Keyword(s):  
River Basin ◽  
Volcanic Belt ◽  
Flowering Plants ◽  
Sedimentary Deposits ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
Chukotka Volcanic Belt ◽  
Systematic Composition ◽  
Coastal Lowlands

The Chingandzha flora comes from the volcanic-sedimentary deposits of the Chingandzha Formation (the Okhotsk-Chukotka volcanic belt, North-East of Russia). The main localities of the Chingandzha flora are situated in the Omsukchan district of the Magadan Region: on the Tap River (basin of the middle course of the Viliga River), on the Kananyga River, near the mouth of the Rond Creek, and in the middle reaches of the Chingandzha River (basin of the Tumany River). The Chingandzha flora includes 23 genera and 33 species. Two new species (Taxodium viligense Golovn. and Cupressinocladus shelikhovii Golovn.) are described, and two new combinations (Arctopteris ochotica (Samyl.) Golovn. and Dalembia kryshtofovichii (Samyl.) Golovn.) are created. The Chingandzha flora consists of liverworts, horsetails, ferns, seed ferns, ginkgoaleans, conifers, and angiosperms. The main genera are Arctop teris, Osmunda, Coniopteris, Cladophlebis, Ginkgo, Sagenoptepis, Sequoia, Taxodium, Metasequoia, Cupressinocladus, Protophyllocladus, Pseudoprotophyllum, Trochodendroides, Dalembia, Menispermites, Araliaephyllum, Quereuxia. The Chingandzha flora is distinct from other floras of the Okhotsk-Chukotka volcanic belt (OCVB) in predominance of flowering plants and in absence of the Early Cretaceous relicts such as Podozamites, Phoenicopsis and cycadophytes. According to its systematic composition and palaeoecological features, the Chingandzha flora is similar to the Coniacian Kaivayam and Tylpegyrgynay floras of the North-East of Russia, which were distributed at coastal lowlands east of the mountain ridges of the OCVB. Therefore, the age of the Chingandzha flora is determined as the Coniacian. This flora is assigned to the Kaivayam phase of the flora evolution and to the Anadyr Province of the Siberian-Canadian floristic realm. The Chingandzha flora is correlated with the Coniacian Aleeky flora from the Viliga-Tumany interfluve area and with other Coniacian floras of the OCVB: the Chaun flora of the Central Chukotka, the Kholchan flora of the Magadan Region and the Ul’ya flora of the Ul’ya Depression.

scholarly journals EVALUATION OF THE IMPACT OF ENVIRONMENTAL CONDITIONS ON THE STATUS OF THE BODY OF YOUNG PEOPLE OF 17-19 YEARS OF DIFFERENT ETHNIC GROUPS OF THE NORTH-EAST RUSSIA

2019 ◽  
Vol 96 (8) ◽  
pp. 766-769 ◽  
Author(s):  
Inessa V. Averyanova ◽  
S. I. Vdovenko ◽  
A. L. Maksimov
Keyword(s):  
Gas Exchange ◽  
Climatic Conditions ◽  
The Body ◽  
External Respiration ◽  
Adaptive Responses ◽  
Northeast Russia ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
The Impact

Natural and climatic conditions of the environment of Northeast Russia and particularly Magadan region are the very factor mostly influencing adaptive responses by individuals inhabiting the region. Compensatory and adaptive responses in indigenes and newcomers of the region can be assumed to have their specific features. In 2009 there was executed the examination of the cardiovascular and respiratory systems and gas exchange in 392 cases aged of 17-19 years, including Europeans (Caucasians) born in the North in the 1st-2nd generation and indigenes. The methodologically similar study was carried out in 2014 in 265 persons, referred to the same cohorts of North-born Caucasians and Indigenes from the Magadan region. The results of the study executed in 2009 testified to a small number of physiological parameters that were reliably different in Caucasians vs. Indigene subjects. In 2014 no difference was found between the two examined cohorts throughout the observed parameters. The revealed changes in gas exchange, external respiration and cardiovascular systems demonstrated by modern young Indigenes of Northeast Russia testified to the fall in the effectiveness of their breathing. All that makes them farther from the classic “polar metabolic type” and their morphofunctional status becomes closer to European male subjects of Northeast Russia. Thus, we can observe a clear tendency towards “convergence in programs” of the adaptive changes between populations of the North residents undergoing similar natural, environmental and social factors.

Antechiniella septentrionalis n. sp. (Spirurida: Acuariidae), a new intestinal nematode parasite of the tundra vole Microtus oeconomus (Pallas) (Rodentia: Muridae) in the north-east of Russia

2018 ◽  
Vol 93 (04) ◽  
pp. 494-503 ◽  
Author(s):  
E.S. Ivanova ◽  
N.E. Dokuchaev ◽  
S.E. Spiridonov
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
28S Rrna ◽  
Microtus Oeconomus ◽  
North East ◽  
The North ◽  
Intestinal Nematode ◽  
Magadan Region ◽  
Left Spicule ◽  
Tundra Vole

AbstractAntechiniella septentrionalis n. sp. (Spirurida: Acuariidae) is described from the duodenum of a tundra vole, Microtus oeconomus (Pallas), collected in the Magadan region in the north-east part of Russia. It differs from A. suffodiax (Beveridge & Barker, 1975) and A. sertatum Smales, 1991 mainly in having a larger number of postcloacal papillae (5–6 pairs vs 4 pairs), a differently shaped left spicule, the disposition of precloacal papillae in two rows vs one, and oblong vs oval eggs. Other differences include the different disposition of ovaries in A. septentrionalis n. sp and A. suffodiax and the different structure of deirids in A. septentrionalis n. sp. and A. sertatum. The new species was characterized molecularly (partial sequences for 18S rRNA, 28S rRNA and cox1 mtDNA). The phylogenetic analyses performed showed the affinity of the new species to the members of the Acuariidae and other spirurid nematodes.

Larval spirurids in a supralittoral amphipod in the north-east of Russia and the identification of the intermediate host of Antechiniella septentrionalis (Spirurida: Acuariidae), parasitic in a tundra vole

2019 ◽  
Vol 94 ◽  
Author(s):  
E.S. Ivanova ◽  
N.E. Dokuchaev ◽  
S.E. Spiridonov
Keyword(s):  
Intermediate Host ◽  
Joint Infection ◽  
Infective Stage ◽  
Magadan Oblast ◽  
Microtus Oeconomus ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Tundra Vole ◽  
Eastern Russia

Abstract The supralittoral amphipod Traskorchestia ditmari (Derzhavin, 1923) was identified as the intermediate host for Antechiniella septentrionalis Ivanova, Dokuchaev & Spiridonov, 2019, a parasite of the tundra vole Microtus oeconomus and Skrjabinocerca sp. (both Spirurida: Acuariidae) in Magadan Oblast in north-eastern Russia. Joint infection by both larval spirurids was not observed. The infective stage of A. septentrionalis was the encysted larvae, while larvae of Skrjabinocerca sp. were free in the amphipod's coelom. The identity of A. septentrionalis was confirmed using cox1 mtDNA gene analysis, performed on adult stages from a tundra vole and on larvae from amphipods. Possible transmission routes of A. septentrionalis are discussed.

scholarly journals Brief History of the North-West Okhotsk Sea Coast Archaeological Research (In Celebration of the 90th Anniversary of the First Northern Okhotsk Sea Coast Archaeology Publication by V. I. Ogorodnikov)

2021 ◽  
Vol 20 (5) ◽  
pp. 20-31
Author(s):  
Sergey B. Slobodin ◽  
Alisa Yu. Zelenskaya
Keyword(s):  
Far East ◽  
Northeast Asia ◽  
Northeastern Russia ◽  
Archaeological Research ◽  
Okhotsk Sea ◽  
North West ◽  
North East ◽  
The North ◽  
History Of ◽  
Sea Coast

Purpose. To analyze the significance of V. Ogorodnikov’s 1929 article on finds from Olsky (Zaviyalova) Island in the historiography of archaeological research in northeastern Russia. Results. An analysis of his published materials, in the context of the history of archaeological research in Northeast Asia in the 18th – first quarter of the 20th century shows that this was, in fact, the first professional publication on archaeological research in this part of northeast Asia. Until that time, sporadic publications about random finds and their fragmentary descriptions did not give a holistic picture of human existence in these territories. It was also the first Russian archaeological publication post-revolution on the antiquities of the north of the Far East. However, Ogorodnikov’s article, from the day of its publication, was forgotten, and in all further archaeological research, both in Northeast Asia as a whole, and on Zaviyalova Island and in Taui Bay in particular, was not mentioned and was not analyzed by the archaeologists who conducted research there, although the conclusions made by him were confirmed by further work. This, apparently, was due to the fact that although he was a well-known Siberian historian and the first Dean of the Department of History of Irkutsk University, Ogorodnikov was unjustly repressed for political reasons in 1933 and died in 1938 in a Gulag camp. Despite the fact that he was politically rehabilitated in 1957, his name has not yet returned to the historiography of archeology of Northeast Asia. This publication aims to fill this gap. The Neolithic age of the archaeological materials declared and published by Ogorodnikov, previously unforeseen and not justified by anyone for Northeast Asia, was fully confirmed by further research. Conclusion. The publication by Ogorodnikov in 1929 featuring results of the first excavations in Taui Bay on Olsky (Zaviyalova) Island is a significant milestone in archaeological research in the North-East of Russia.

Systematic composition and evolutionary significance of floristic assemblage of the Toptan Formation (Lower Cretaceous, North-East of Russia)

Palaeobotany ◽  
2017 ◽  
Vol 8 ◽  
pp. 28-44 ◽  
Author(s):  
L. B. Golovneva ◽  
S. V. Shczepetov ◽  
A. E. Livach
Keyword(s):  
Main Part ◽  
Floral Development ◽  
Floristic Composition ◽  
Flowering Plants ◽  
Evolutionary Significance ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
Plant Remains ◽  
Systematic Composition

The analysis of the distribution of plant remains in deposits of the Aigur and Toptan formations (Omsukchan district of the Magadan Region) showed that the main part of the species that were included in the Toptan stratoflora (Samylina, 1976), in fact come from the Aigur Formation. Floristic assemblages of the Aigur and Toptan formations are very similar in systematic composition. Increasing the diversity of flowering plants and reduction of typical Cretaceous taxa (cycadophytes and Ginkgoales was not indicated on the boundary between these formation. Thus, there is no evidence of significant changes in the floristic composition at this stratigraphic level and the existence of independent Toptanian stage in the evolution of the mid-Cretaceous flora of the North-East of Russia. Floristic assemblages from the Galimyi, Aigur and Toptan formations are proposed to be merged into a single Sugoi flora, which should be attributed to the Buor-Kemus stage of floral development (lower-middle Albian). The description of the lectostratotype of the Toptan Formation is first published and distribution of this formation is illustrated.

Social sphere of the Magadan region in 1954—1957

2020 ◽  
Vol 2020 (12-1) ◽  
pp. 201-217
Author(s):  
Pavel Grebenyuk
Keyword(s):  
Public Health ◽  
State Policy ◽  
Social Groups ◽  
Demographic Situation ◽  
Free Labor ◽  
Social Sphere ◽  
North East ◽  
The North ◽  
Magadan Region ◽  
The Social

The article explores the main changes in the development of the social sphere of the Magadan region in 1954-1957, with focus on the demographic situation, social groups and employment of the population. The features of the implementation of state policy was accompanied by the transition to free labor at the Dalstroy enterprises, increased attention to the development of public health and ensuring public safety of the population arriving in the North-East of the USSR.

scholarly journals NORTHERN CAUCASUS

2019 ◽  
pp. 82-95 ◽  
Author(s):  
Irina Gabsatarov ◽  
L. Koroletski ◽  
E. Selivanova ◽  
E. Artyomova ◽  
O. Kamenskaya
Keyword(s):  
Seismic Energy ◽  
Seismic Network ◽  
Northern Caucasus ◽  
North Caucasus ◽  
Tectonic Structures ◽  
The Caucasus ◽  
Seismic Stations ◽  
The North ◽  
Weak Earthquakes ◽  
Digital Equipment

. It is reported that 59 seismic stations operated in the region in 2013. In the western and eastern parts of the region, new stations equipped with Russian digital equipment UGRA were opened: Aibga, Fisht, Karaman. The seismic network recorded 1941 earthquakes and 34 explosions in industrial quarries. 37 earthquakes were felt in the settlements of the Caucasus. The maximum shaking intensity, equal to Imax=6 on the MSK-64 scale, was felt during earthquakes on April 16 at 12h26m with КР=11.8 in the settlements of Kichi-Gamri, Mamaul, Myurego of Dagestan. Swarms of weak earthquakes with КР=4–8 were recorded in the Greater So-chi, Krasnaya Polyana areas, in Kabardino-Balkaria, and in the adjacent territory of Georgia in the area of Kazbek volcano. The area of manifestation of earthquakes with intermediate hypocenter depths, which previously belonged only to the Terek-Caspian trough (the territory of the Chechen Republic) along the diagonal Benoy-Eldarov suture zone, expanded in 2013 to the southeast and advanced under the structures of the Dagestan wedge. According to the level of seismic energy released, seismicity of the territory of the North Caucasus in 2013 characterized in accordance with the scale of the seismicity level as “background low” for the period of observations from 1962 to 2013. The strongest earthquakes occur in the connection zones of the main tectonic structures.

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