Results 111 to 120 of about 27,412 (233)

Long‐Period Seismic Waves From Seawater Disturbances During the 2018 Anak Krakatau Volcanic Island Collapse

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Landslides often generate long‐period seismic waves that propagate over large distances. During volcanic island collapses and their intrusion into seawater, seismic signals of >1 min periods are widely observed. The physical sources of these signals remain poorly understood due to complex landslide‐water interactions. In this paper, we perform
Yifan Zhu, Shingo Watada, Chao An, Masumi Yamada, Tomokazu Kobayashi, Karyono Karyono, Arif Aditiya, Iyan E. Mulia   +7 more
wiley   +1 more source

On the Relationship Between Oceanic Plate Speed, Tectonic Stress, and Seismic Anisotropy. [PDF]

Geophys Res Lett, 2022
Kendall E, Faccenda M, Ferreira AMG, Chang SJ.   +3 more
europepmc   +1 more source

Decadal Stability of Multi‐Scale Core‐Mantle Boundary in Core‐Reflections of Repeating Earthquakes

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Temporal changes near the core‐mantle boundary (CMB) would trigger insights into ongoing thermal and chemical interactions between the Earth's core and mantle. Here, we search for multidecadal temporal changes in the CMB topography and heterogeneity using waveform similarity analysis of core‐reflected phases (PcP, ScP, and ScS) from global ...
Tianyu Cui, Wei Wang, John E. Vidale, Hao Zhang, Hao Luo, Yinshuang Ai   +5 more
wiley   +1 more source

Helioseismic response to X2.2 solar flare of February 15, 2011

, 2011
The X2.2-class solar flare of February 15, 2011, produced a powerful sunquake event, representing a helioseismic response to the flare impact in the solar photosphere, which was observed with the HMI instrument on the Solar Dynamics Observatory (SDO ...
Donea, Donea, Hudson, Kosovichev, Kosovichev, Kosovichev, Kosovichev, Kosovichev, Kosovichev, Kostiuk, Zharkova   +10 more
core   +1 more source

Anisotropic Melt Inclusions as a Confounding Signal for Ice‐Penetrating Radar Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Ice‐penetrating radar is a powerful geophysical tool for understanding the subsurfaces of Earth, Mars, and icy moons. Radar reflectivity, attenuation, and birefringence are used to infer subsurface hydrology, englacial temperature, water content, and crystal orientation fabric.
A. H. Cheng, D. M. Schroeder, N. S. Wolfenbarger, R. Shaper, C. Seltzer, B. Hills   +5 more
wiley   +1 more source

Distinct Crustal Structure Across the Alpine Fault, New Zealand: Seismic Imaging of a Through‐Going Vertical Fault Beneath Its Central Section

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Alpine Fault (Aotearoa New Zealand) is a major plate boundary transform fault, that quasi‐periodically hosts large (M7‐8) to great (M8+) earthquakes. The fault is thought to be segmented with sections rupturing both individually and in combination.
Karen Lythgoe, Ben Farrar, Jack‐Andrew Smith, Andrew Curtis, John Townend, Calum J. Chamberlain, Emily Warren‐Smith, Jennifer Jenkins   +7 more
wiley   +1 more source

Dislocation creep may control bridgmanite deformation in the Earth’s lower mantle

Communications Earth & Environment
Seismic anisotropy in the Earth’s lower mantle, particularly around subduction zones, is commonly attributed to deformation by dislocation creep, yet much of the lower mantle appears nearly isotropic.
Longli Guan, Daisuke Yamazaki, Noriyoshi Tsujino, Yuji Higo, Sho Kakizawa, Xiang Wu, Junfeng Zhang   +6 more
doaj   +1 more source

Radar Specularity Content Indicates a Strong Geothermal Heat Flow Gradient in Antarctica's South Pole Basin

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Accurate estimates of geothermal heat flow (GHF) are critical for predicting basal melting and identifying stable sites for ancient ice, yet GHF remains one of the least constrained boundary conditions for the Antarctic Ice Sheet. We evaluate nine published Antarctic GHF models against radar‐derived specularity content in the South Pole Basin (
M. Kerr, D. A. Young, S. Yan, C. Pierce
wiley   +1 more source

Getting Anisotropy in the Seismic Data Processing

Revista Cubana de Ingeniería, 2013
In a conventional processing of seismic data (processing of only one type of wave, P or S), to getimages for hydrocarbons exploration, an isotropic model of the earth is assumed.
Edenia de la Caridad Camejo Cordero
doaj   +1 more source

Effect of Al on the sharpness of the MgSiO_3 perovskite to post-perovskite phase transition [PDF]

, 2005
By means of static ab-initio computations we investigate the influence of Al on the recently discovered perovskite to post-perovskite phase transition in MgSiO_3. We examine three substitution mechanisms for Al in the two structures: MgSi → AlAl; SiSiO →
Akber-Knutson, S., Asimow, Paul D., Steinle-Neumann, G.   +2 more
core