Results 11 to 20 of about 10,380 (227)

Determining the coordinates of the earthquake hypocenter with the simultaneous determination of seismic wave velocities

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The purpose of the study is to determine the coordinates of the earthquake hypocenter with the simultaneous determination of the seismic wave velocity.Method.
Yu. A. Sidorkina, T. G. Aslanov
doaj   +1 more source

Back-Analysis of Rock Mass Strength at a Radioactive Waste Disposal Site Using Acoustic Emission Monitoring Data and 3D Numerical Modelling

open access: yesEnergies, 2023
In this study, a new method was examined that used acoustic emission (AE) monitoring data, in combination with a primary Boundary Element stress analysis, to back-calculate rock mass strength.
Ferenc Deák   +3 more
doaj   +1 more source

An artifact in the Kamchatka earthquake catalog: study and elimination [PDF]

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2019
According to the available data from the Kamchatka Regional Catalog, in the southwestern part of the Kamchatka region, deep earthquakes systematically occurred away from the main seismic focal zone.
Lander, A.V.   +2 more
doaj   +1 more source

SOME CHARACTERISTICS OF THE EARTHQUAKE CATALOG AND THE SEISMIC PROCESS ACCORDING TO THE KNET NETWORK

open access: yesГеодинамика и тектонофизика, 2022
Some characteristics of the earthquake catalog and seismic process are considered. The catalog is obtained according to the KNET network (KN-code in FSDN, International Federation of Digital Seismograph Networks, that is operated by Research Station of ...
N. A. Sycheva
doaj   +1 more source

Analysis of the stability of determining the focal parameters of seismic events using the KNET network data by the programs Hypocenter, HYP, Hypoellipse, HYPO71, Dbloc2

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022
Parameters of hypocenters and times of 4760 seismic events taken from KNET catalog compiled by the Research Station of the Russian Academy of Sciences for the period since May 2003 till the end of 2020 have been determined by different programs ...
Воронцова Е.В.
doaj   +1 more source

Dike Inflation Process Beneath Sakurajima Volcano, Japan, During the Earthquake Swarm of August 15, 2015

open access: yesFrontiers in Earth Science, 2021
Magma intrusion usually causes seismicity and deformation in the surrounding rock and often leads to eruptions. A swarm of volcano-tectonic (VT) earthquakes associated with rapid dike intrusion in hours occurred beneath Sakurajima volcano on August 15 ...
Midori Koike   +2 more
doaj   +1 more source

Identification of Micro-Earthquake Hypocenters using Geiger and Coupled Velocity-Hypocenters Methods

open access: yesInternational Journal on Advanced Science, Engineering and Information Technology, 2021
The accuracy location of hypocenter is needed to determine the subsurface character beneath a geothermal area. The study used 73 micro-earthquake events; each micro-earthquake event was classified based on the time difference between the P and S waves (ts-tp) that had values ≤ 3seconds, the magnitude of micro-earthquake ≤ 3SR and each micro ...
Widya Utama   +2 more
openaire   +2 more sources

Сравнение оценок параметров гипоцентров землетрясений Камчатского региона из разных каталогов

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
Для землетрясений Камчатского региона и землетрясений в районе западной части Алеутско – Командорского желоба рассчитаны невязки между временем пробега волн P исходя из оценки времени в очаге и временем пробега в соответствии с моделью Земли AK135 ...
Шевченко, Ю.В.
doaj   +1 more source

Method for Positioning of Underground Shallow Hypocenter Based on Deep Learning [PDF]

open access: yesJisuanji gongcheng, 2020
To address the problem that the energy focus in the underground energy field focusing model cannot be effectively identified,this paper proposes a method for positioning of underground shallow hypocenter on the basis of deep learning.The method uses ...
XIN Weiyao, LI Jian, WANG Xiaoliang, LI Yujian
doaj   +1 more source

Micro-impact-induced mechano-chemical synthesis of organic precursors from FeC/FeN and carbonates/nitrates in water and its extension to nucleobases

open access: yesGreen Processing and Synthesis, 2023
Much effort was taken to elucidate how organic precursors appeared in early Earth, and attention was paid to two impact experiments: hypervelocity impacts by a propellant gun which simulated meteorite collides to Earth forming fatty acids and amino acids
Kugimiya Koichi   +4 more
doaj   +1 more source

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