Results 41 to 50 of about 2,291 (297)

Geomechanic modeling of seismic emission due to fracture growth - connection to microseismic source mechanisms

open access: yesGeofísica Internacional
We present an approach to study the rock failure mechanisms due to fracture growth or activation. Our approach includes a series of numerical geomechanic simulations of an incremental rock failure (fracture growth) accounting for elastic wavefield ...
Sergey Yaskevich   +2 more
doaj   +1 more source

Mathematical modeling of wave fields in layered media with additional stresses

open access: yesГеофизический журнал, 2012
We consider the model of a vertically inhomogeneous medium, when one or more layers are under more stress. We analyzed the results of research of influence of hydrostatic pressure act-ing in one of the layers of horizontally-layered structure of the wave
D. V. Malitsky   +2 more
doaj   +1 more source

Is the seismic moment tensor ambiguous at a material interface? [PDF]

open access: yesGeophysical Journal International, 2013
S U M M A R Y The moment tensors are unique and describe the body force equivalents of rupture processes in any medium including faulting at a material interface, defined as the contact of two media with non-zero velocity or density contrasts. From a practical point of view, however, the moment tensor inversion of sources near or at a material ...
openaire   +1 more source

On the Depth of Earthquakes in the Delaware Basin: A Case Study along the Reeves–Pecos County Line

open access: yesThe Seismic Record, 2022
Increased rates of seismicity in the Delaware basin, Texas, accompanying unconventional petroleum development have created intensive interest in determining their cause.
Yixiao Sheng   +2 more
doaj   +1 more source

Seismic Moment Tensor Report for the 06 Aug 2007, M3.9 Seismic Event in Central Utah [PDF]

open access: yes, 2007
We have performed a complete moment tensor analysis (Minson and Dreger, 2007) of the seismic event, which occurred on Monday August 6, 2007 at 08:48:40 UTC, 21 km from Mount Pleasant, Utah. The purpose of this report is to present our scientific results,
Dreger, D S   +4 more
core   +1 more source

Seismic moment tensor and focal mechanism for earthquake of February 22, 2024 in eastern Slovakia (12:54:15 UTC, 21.75E°E, 49.03°N, depth 9 km, ML3.0)

open access: yesГеофизический журнал
The accuracy of the focal mechanism solution can depend very significantly on the number of stations used, especially in the case of weak earthquakes and sparse networks.
D.V. Malytskyy   +9 more
doaj   +1 more source

Seismic structure and earthquake focal mechanisms of the Hengill volcanic complex, S W Iceland [PDF]

open access: yes, 1996
Iceland provides a unique opportunity to study the processes that occur along mid- ocean ridges. In 1991, thirty temporary seismic stations were installed at the Hengill volcanic complex to record high-quality digital data from local earthquakes.
Miller, Angus D.
core  

Deep Compressed Seismic Learning for fast location and moment tensor inferences with natural and induced seismicity

open access: yesScientific Reports, 2022
Fast detection and characterization of seismic sources is crucial for decision-making and warning systems that monitor natural and induced seismicity. However, besides the laying out of ever denser monitoring networks of seismic instruments, the incorporation of new sensor technologies such as Distributed Acoustic Sensing (DAS) further challenges our ...
Ismael Vera Rodriguez, Erik B. Myklebust
openaire   +3 more sources

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang   +8 more
wiley   +1 more source

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

open access: yesAnnals 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

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