Results 41 to 50 of about 908 (240)

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

Spatial distribution of horizontal seismic strain in the Apennines from historical earthquakes

Annals of Geophysics, 1998
Horizontal principal seismic strain rate axes have been calculated within a regular mesh of triangles covering the Italian peninsula in a time interval of 700 years.
G. Selvaggi
doaj   +1 more source

The Uglovoye Podnyatiye Earthquake on December 20, 2018 (Mw = 7.3) in the Junction Zone between Kamchatka and Aleutian Oceanic Trenches

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
The paper presents the first results of integrated research of the strong seismic event (Uglovoye Podnyatiye earthquake (UPE) with a magnitude of Mw=7.3) that occurred on December 20, 2018 in the junction zone between the Kuril-Kamchatka and Aleutian ...
Чебров Д.В., Кугаенко Ю.А., Ландер А.В., Абубакиров И.Р., Дрознина С.Я., Митюшкина С.В., Павлов В.М., Салтыков В.А., Серафимова Ю.К., Титков Н.Н.   +9 more
doaj   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Seismic moment tensors and estimated uncertainties in southern Alaska [PDF]

Journal of Geophysical Research: Solid Earth, 2016
AbstractWe present a moment tensor catalog of 106 earthquakes in southern Alaska, and we perform a conceptually based uncertainty analysis for 21 of them. For each earthquake, we use both body waves and surface waves to do a grid search over double couple moment tensors and source depths in order to find the minimum of the misfit function.
Vipul Silwal, Carl Tape
openaire   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

DISTRIBUTION OF REDUCED SEISMIC ENERGY AND STRESS DROP IN THE ALTAI-SAYAN SEISMOACTIVE REGION

Геодинамика и тектонофизика
The data bank has been created to address the tensor of the seismic moment of earthquakes that occurred in the Altai-Sayan seismically active region in the period 1978–2025.
N. A. Sycheva, L. M. Bogomolov
doaj   +1 more source

Prediction method of coal burst risk based on focal mechanism and location error calibration

Meitan xuebao, 2023
Under the background of the rapid development of intelligent coal burst monitoring technology, how to use massive seismic monitoring information to investigate source rupture and apply it to the prediction, early warning, or prevention of coal burst is ...
Yaoqi LIU, Anye CAO, Changbin WANG, Xu YANG, Qiang WANG, Xianxi BAI, Tao LIU   +6 more
doaj   +1 more source

The two-point correlation function of the seismic moment tensor [PDF]

Geophysical Journal International, 1985
Summary. We use the invariants of the two-point correlation function of the seismic moment to investigate the degree of irregularity of an earthquake fault, i.e. to study the rapidity with which a complex fault changes its direction of orientation. The two-point correlation function is a fourth-order tensor which has three scalar invariants in the ...
Y. Y. Kagan, L. Knopoff
openaire   +1 more source