Results 31 to 40 of about 24,554 (225)

Seasonal and spatial variations in the ocean-coupled ambient wavefield of the Ross Ice Shelf [PDF]

open access: yes, 2019
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Baker, M. G., Aster, R. C., Anthony, R. E., Chaput, J., Wiens, D. A., Nyblade, A., Bromirski, P.
Anthony, Robert E.   +8 more
core   +1 more source

Linking Stress Drop and Slip Heterogeneity to Assess Source Rupture Directivity for Earthquakes in Central Italy

open access: yesTerra Nova, EarlyView.
ABSTRACT In this study, we examine the relationship between Brune stress drop and fault slip where the stress drop is estimated using the Empirical Green's Function (EGF) method and slip distribution is derived from seismic and geodetic data inversion.
Calderoni Giovanna   +2 more
wiley   +1 more source

Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Seismic Hazard Purposes [PDF]

open access: yes, 2012
The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown.
Borges, J. F.   +8 more
core   +1 more source

Nonstationary Stochastic Simulation of Strong Ground-Motion Time Histories : Application to the Japanese Database [PDF]

open access: yes, 2012
For earthquake-resistant design, engineering seismologists employ time-history analysis for nonlinear simulations. The nonstationary stochastic method previously developed by Pousse et al. (2006) has been updated.
Bonilla, Luis Fabian   +2 more
core   +2 more sources

Earthquakes: from chemical alteration to mechanical rupture

open access: yes, 1998
In the standard rebound theory of earthquakes, elastic deformation energy is progressively stored in the crust until a threshold is reached at which it is suddenly released in an earthquake.
Abercrombie   +276 more
core   +1 more source

Expected seismicity and the seismic noise environment of Europa [PDF]

open access: yes, 2017
Seismic data will be a vital geophysical constraint on internal structure of Europa if we land instruments on the surface. Quantifying expected seismic activity on Europa both in terms of large, recognizable signals and ambient background noise is ...
Huang, Hsin-Hua   +7 more
core   +3 more sources

Penetration of Warm Slabs Across the 660 km Boundary: The Potential Role of Hydrous Stishovite

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We investigate the phase boundary of hydrous/anhydrous post‐spinel transition at conditions relevant to the 660 km boundary. For the hydrous ringwoodite decomposition, the slope is found to range from negative to positive values depending on the distribution of water between the final products, namely, bridgmanite, periclase (mostly anhydrous)
Rabindranath Mondal, Swastika Chatterjee
wiley   +1 more source

Characterization of Near‐Surface Velocity Structure at Haast, New Zealand, Using Distributed Acoustic Sensing (DAS) Measurements of Seismicity

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Distributed acoustic Sensing (DAS) data collected along a 30 km length of telecommunications fiber crossing the Alpine Fault near Haast enable analysis of interactions between fluvioglacial and seismotectonic processes. Here we use DAS recordings of 25 earthquakes to probe near‐surface structure beneath the Haast river valley.
Allan Raudsepp   +4 more
wiley   +1 more source

On the Correct Use of Statistical Tests: Reply to "Lies, damned lies and statistics (in Geology)"

open access: yes, 2011
In a Forum published in EOS Transactions AGU (2009) entitled "Lies, damned lies and statistics (in Geology)", Vermeesch (2009) claims that "statistical significant is not the same as geological significant", in other words, statistical tests may be ...
Pisarenko, V., Sornette, D.
core   +1 more source

Is the Deep Martian Mantle Heterogeneous? A Reappraisal of Seismological Evidences

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract It has been proposed that the deep Martian mantle contains distributed heterogeneities preserved since the accretion of the planet. This result relies on a multiple‐scattering interpretation of frequency‐dependent arrival times of P $P$‐waves detected in the spectrograms of teleseismic Martian events.
L. Margerin
wiley   +1 more source

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