Results 51 to 60 of about 411 (172)

Magma Pathways Beneath the Klyuchevskoy Volcanic Group, Kamchatka, Revealed by a Machine‐Learning‐Based Earthquake Catalog

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Klyuchevskoy Volcanic Group (KVG) is one of the world's largest clusters of subduction‐zone volcanoes and hosts a complex trans‐crustal magmatic system. Using a machine‐learning–based detection workflow applied to data from the KISS seismic experiment in 2015–2016, we obtained an enhanced earthquake catalog for KVG volcano‐magmatic activity ...
Weifan Lu, Nikolai M. Shapiro, Jannes Münchmeyer   +2 more
wiley   +1 more source

Geological Revolutions in the Late 20th and Early 21st Centuries: Plate Tectonics, Extraterrestrial Impacts, and Snowball Earth

Natural Sciences, Volume 6, Issue 3, July 2026.
ABSTRACT During the late 20th and early 21st century three conceptual revolutions reordered our understanding of the history of the Earth: The spread of plate tectonic theory from the 1960s onward which brought geology the first meaningful theory for building mountains and the migration of continents; the rebirth of catastrophism in 1980 with the ...
Douglas H. Erwin
wiley   +1 more source

Fault–fracture mesh development produces tectonic tremor in fluid-overpressured serpentinized mantle wedge

Communications Earth & Environment
Deep tectonic tremor occurs repeatedly at the base of a forearc mantle wedge corner, where a highly fluid-pressurized serpentinite shear zone is thought to develop.
Ken-ichi Hirauchi, Yurina Nagata, Keishi Okazaki   +2 more
doaj   +1 more source

Investigating volcanic hazard in Cape Verde Islands through geophysical monitoring: network description and first results [PDF]

Natural Hazards and Earth System Sciences, 2014
We describe a new geophysical network deployed in the Cape Verde Archipelago for the assessment and monitoring of volcanic hazards as well as the first results from the network. Across the archipelago, the ages of volcanic activity range from ca.
B. Faria, J. F. B. D. Fonseca
doaj   +1 more source

Regional and global variations in the temporal clustering of tectonic tremor activity [PDF]

Earth, Planets and Space, 2014
The temporal distribution of tremor activity exhibits a highly non-Poissonian behavior, and its maximum period of non-Poissonian clustering statistically describes the recurrence interval of major tremor bursts. Here, we examine variations in the temporal clustering properties of tremor activity by assessing their characteristic times, which are ...
Idehara, Koki, Yabe, Suguru, Ide, Satoshi   +2 more
openaire   +1 more source

High‐Rate GNSS Analysis of the Onset, Growth, and Termination of Slow Slip Events and Their Along‐Dip Variability Offshore the Boso Peninsula, Japan (2011–2024)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Recurring slow slip events (SSEs) with moment magnitudes in the mid‐6 range have occurred every few years since the 1990s offshore the Boso Peninsula, Japan. These events occur near the source area of ∼M8 megathrust earthquakes beneath the Tokyo metropolitan area and are accompanied by earthquake swarms.
Riko Arai, Shiori Watanabe, Yuta Mitsui
wiley   +1 more source

Probing Slow Earthquakes With Deep Learning

Geophysical Research Letters, 2020
Slow earthquakes may trigger failure on neighboring locked faults that are stressed sufficiently to break, and slow slip patterns may evolve before a nearby great earthquake.
Bertrand Rouet‐Leduc, Claudia Hulbert, Ian W. McBrearty, Paul A. Johnson   +3 more
doaj   +1 more source

The Role of Metamorphic Fluid in Tectonic Tremor Along the Alpine Fault, New Zealand

Geophysical Research Letters, 2021
Abstract The production of H 2 O during metamorphism along active plate boundaries is inferred to contribute to low‐frequency tectonic tremor. This study combines predictions from phase equilibria and mechanical modeling of coincident volume changes to investigate links of ...
Timothy Chapman, Luke Milan, Julie Vry
openaire   +1 more source

Source Scaling of Shallow Volcano‐Tectonic Earthquakes at Piton de la Fournaise Volcano (La Réunion, France) Estimated From Codas of Seismograms

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Despite their importance for understanding faulting processes in volcanic environments, the source scaling of volcano‐tectonic earthquakes remains poorly constrained, mainly due to the difficulty of measuring their source parameters. We analyze source parameters such as seismic moments (M0 ${M}_{0}$) and corner frequencies (fc ${f}_{c}$) of ...
Tatiana I. Kartseva, Nikolai M. Shapiro, Zacharie Duputel, Valérie Ferrazzini   +3 more
wiley   +1 more source

Tidal sensitivity of tectonic tremors in Nankai and Cascadia subduction zones [PDF]

Journal of Geophysical Research: Solid Earth, 2015
AbstractTectonic tremors in subduction zones, which result from slip at the deep plate interface, are known to exhibit a 12.4 h periodicity in their activity, due to tidal influence. Because tidal stress can be calculated quantitatively, the response of the plate interface can yield quantitative information about its frictional property.
Suguru Yabe, Yoshiyuki Tanaka, Heidi Houston, Satoshi Ide   +3 more
openaire   +1 more source