Automated Estimation of Seismic Shaking Intensity from Instrumental Data in Quasi-Real-time Mode and Its Use in the Operation of the of Seismic Early Warning Service in the Kamchatka Region

Дрознин, Д. В.; Chebrov, Danila; Droznina, S.; Ototuk, D. A.

doi:10.3103/s0747923918030088

Seism. Instr.

2018

DOI: 10.3103/s0747923918030088

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Automated Estimation of Seismic Shaking Intensity from Instrumental Data in Quasi-Real-time Mode and Its Use in the Operation of the of Seismic Early Warning Service in the Kamchatka Region

Д. В. Дрознин

Danila Chebrov

S. Droznina

et al.

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Cited by 4 publications

References 14 publications

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SEISMICITY of KAMCHATKA and COMMANDERISLANDS in 2018–2019

Chebrov,

Matveenko,

Romasheva

et al. 2023

Earthquakes in Northern Eurasia

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The seismicity review of Kamchatka and surrounding territories for 2018–2019 is given. In the Kamchatka earthquake catalogue, the minimum local magnitude of completeness is MLmin=3.8, and for the Kamchatka seismically active region (latitude = 50.5–56.5° N, longitude = 156.5–167° E) MLmin=3.7, and for earthquakes with h≥350 km under the Okhotsk sea MLmin=3.8. The Kamchatka earthquake catalogue for 2018–2019, published in the Appendix to this article, includes 3646 events with ML≥3.5; 228 earthquakes with ML=3.65–7.3 were felt in Kamchatka and surrounding areas with seismic intensity I of 1–2 to 6–7 according to the Seismic Intensity Scale-2017 (Russian state standard). For 134 events with ML≥5.0 that occurred in 2018–2019 within the area of responsibility of Кamchatka branch of Geophysical Survey RAS, an attempt to calculate the seismic moment tensor (SMT) was made. The SMT and depth h of the equivalent point source were calculated for 67 earthquakes in 2018 with a range of ML=5.0–7.3, and for 67 events in 2019 with a range of ML=5.0–6.45. The level of seismicity according to the "SOUS'09" scale in 2018 corresponded to the “background increased”, but within the assessment accuracy – “high”; for 2019 it was the “background average”. On December 20, 2018, there was a strong earthquake with Mw=7.3, named “the Angular Uplift earthquake”. This earthquake was the strongest intraplate event, which belongs to the region south of the junction zone of the Kamchatka and Aleutian trenches The earthquake was accompanied by a large number of aftershocks.

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SEISMICITY of KAMCHATKA and COMMANDERISLANDS in 2018–2019

Chebrov,

Matveenko,

Romasheva

et al. 2023

Earthquakes in Northern Eurasia

View full text Add to dashboard Cite

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DEEP FOCUS EARTHQUAKE on NOVEMBER 30, 2020 in the TATAR STRAIT, Мw=6.4 (SAKHALIN ISLAND)

Semenova,

Kostylev,

Kostyleva

2024

Earthquakes in Northern Eurasia

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. On November 30, 2020, at 22h54m UTC, an earthquake with a magnitude Mw=6.4 occurred in the Tatar Strait at a depth of 600 km. The earthquake was felt in the vast territory of the Russian Far East and on the islands of the Japanese ridge. The seismic event was recorded by seismic stations of international agencies and regional seismological centers. The article presents the results of a detailed study of the earthquake waveforms at the Yuzhno-Sakhalinsk station, analyzes spectral characteristics of P- and S-waves using methods aimed at stud ying continuous seismic signals. For the first time in the practice of the Sakhalin Branch GS RAS, an analysis of the macroseismic manifestation of the earthquake on November 30, 2020 was carried out together with intensities calculated from instrumental data.

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Formation of a unified system for collecting seismological information in the Sakhalin Division GS RAS

Kostylev

2021

RJS

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The main stages of creation and development of a seismic monitoring network of the Sakhalin Division GS RAS are considered. The main types of seismic data recording equipment used in the Sakhalin Division GS RAS are listed. The structure of the seismological data collection system of the Sakhalin Division GS RAS and its components are presented. The concept of creation and operation of autonomous points of instrumental seismic observations, as the main element of the development of a system for collecting seismological data, is proposed. The implementation of autonomous points of instrumental seismic observations is shown in detail on the example of the creation of emergency rescue centers for monitoring and forecasting emergency situations on the Kuril Islands of the EMERCOM of Russia in the Sakhalin Region. An assessment of the current state of the system for collecting seismological data in the Sakhalin Division GS RAS and its registration capabilities is given. The significance of the system for collecting seismological data of the Sakhalin Division GS RAS as a part of the large-scale research facilities of the GS RAS - a complex of continuous seismic monitoring of the Russian Federation, adjacent territories, and the world

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Automated Estimation of Seismic Shaking Intensity from Instrumental Data in Quasi-Real-time Mode and Its Use in the Operation of the of Seismic Early Warning Service in the Kamchatka Region

Cited by 4 publications

References 14 publications

SEISMICITY of KAMCHATKA and COMMANDERISLANDS in 2018–2019

SEISMICITY of KAMCHATKA and COMMANDERISLANDS in 2018–2019

DEEP FOCUS EARTHQUAKE on NOVEMBER 30, 2020 in the TATAR STRAIT, Мw=6.4 (SAKHALIN ISLAND)

Formation of a unified system for collecting seismological information in the Sakhalin Division GS RAS

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