Results 81 to 90 of about 636,438 (150)
On the full-waveform inversion of seismic moment tensors
International Journal of Solids and Structures, 2020 In this work, we propose a full-waveform technique for the spatial reconstruction and characterization of (micro-) seismic events via joint source location and moment tensor inversion. The approach is formulated in the frequency domain, and it allows for the simultaneous inversion of multiple point-like events.
Amad, Alan A. S. +2 more
openaire +3 more sources
Seismic structure and earthquake focal mechanisms of the Hengill volcanic complex, S W Iceland [PDF]
, 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
Passive seismic event estimation using multi-scattering waveform inversion
, 2019 Passive seismic monitoring has become an effective method to understand underground processes. Time-reversal-based methods are often used to locate passive seismic events directly. However, these kinds of methods are strongly dependent on the accuracy of
Wu, Zedong +2 more
core +1 more source
Micro-seismic imaging using a source function independent full waveform inversion method [PDF]
, 2018 At the heart of micro-seismic event measurements is the task to estimate the location of the source micro-seismic events, as well as their ignition times. The accuracy of locating the sources is highly dependent on the velocity model.
Wang, Hanchen, Alkhalifah, Tariq Ali
core +1 more source
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract The Pamir, located at the northwestern margin of the Tibetan Plateau, is undergoing E–W extension within its interior, accommodated by micro‐block motions along major fault systems; however, the mechanisms governing this modern block kinematics remain elusive.
Bingfeng Zhang +3 more
wiley +1 more source
Crustal accretionary processes at mid-ocean ridges - Valu Fa Ridge, Lau Basin [PDF]
, 1998 The structure of oceanic crust is surprisingly uniform, which suggests that crustal accretionary processes at mid-ocean ridges must be broadly similar, despite their different spreading rates and seafloor morphologies.
Turner, Ian mark
core
Tunnel reconnaissance by seismic full waveform inversion
, 2020 Seismische Vorauserkundung ist ein wichtiges Werkzeug für das sichere Auffahren im maschinellen Tunnelbau. Heute werden bereits verschiedene Systeme angewendet, die die Einsatzzeiten unterschiedlicher seismischer Phasen analysieren. In dieser Arbeit werden die gesamten Informationen der seismischen Signale mittels Full Waveform Inversion (FWI ...
openaire +2 more sources
Energy GeoscienceSeismic exploration is the most precise geophysical method for investigating and forecasting subsurface resources, yet its conventional fully elastic assumption neglects temperature effects, limiting its utility in geothermal studies.
Sen Yang +7 more
doaj +1 more source
Source‐Unbiased Subsurface Monitoring With Seismic Noise
Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.Abstract This study addresses a key limitation of seismic noise interferometry for subsurface monitoring: the impact of non‐stationary sources on seismic velocity change estimates. Conventional methods rely on time‐period references, which can inherit source‐related effects when source conditions vary, biasing the estimated velocity changes.
Pilar Sánchez‐Pastor +7 more
wiley +1 more source
Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]
, 1988 Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
core +1 more source