Results 61 to 70 of about 793 (206)

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

open access: yesNatural 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]

open access: yesEarth, 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   +2 more
openaire   +1 more source

Probing Slow Earthquakes With Deep Learning

open access: yesGeophysical 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   +3 more
doaj   +1 more source

Creating Flood Disasters: Environmental Memory and Adaptation in Aotearoa New Zealand

open access: yesKōtuitui: New Zealand Journal of Social Sciences Online, Volume 21, Issue 2, June 2026.
This article explores three questions. First, why does New Zealand have widespread flooding hazards? Second, why are these persistent, with little seemingly learned from the memory of earlier events? And third, beyond reiterating conventional solutions, what examples of alternatives or adaptations are being developed in different places?
Eric Pawson
wiley   +1 more source

Near‐continuous tremor and low‐frequency earthquake activities in the Alaska‐Aleutian subduction zone revealed by a mini seismic array [PDF]

open access: yes, 2017
Tectonic tremor and low-frequency earthquakes (LFEs) are relatively poorly studied in the Alaska-Aleutian subduction zone due to the limited data availability, difficult logistics, and rugged terrain.
Abhijit Ghosh   +3 more
core   +1 more source

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

open access: yesJournal 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   +3 more
openaire   +1 more source

Metamorphic Dehydration, Fluid Pressure, and the Frictional‐Viscous Transition Along Subduction Megathrusts: Case Study in Cascadia and Implications for Slow Earthquakes

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract Relative plate motion in subduction zones transitions from frictional slip to viscous flow with increasing depth and temperature. The frictional‐viscous transition can control the depth extent of megathrust earthquakes and episodic tremor and slip (ETS).
So Ozawa   +2 more
wiley   +1 more source

Llaima volcano dataset: In-depth comparison of deep artificial neural network architectures on seismic events classification

open access: yesData in Brief, 2020
This data manuscript presents a set of signals collected from the Llaima volcano located at the western edge of the Andes in Araucania Region, Chile. The signals were recorded from the LAV station between 2010 and 2016.
João Paulo Canário   +4 more
doaj   +1 more source

Event Size Distribution of Shallow Tectonic Tremor in the Nankai Trough [PDF]

open access: yesGeophysical Research Letters, 2019
AbstractSlow earthquake size distributions have been found to follow either a power law or an exponential law, depending on the data set. We investigated the size distribution of shallow tectonic tremor events along the Nankai trough, southwestern Japan, observed in 2009, 2015, 2016, and 2018 and estimated the seismic energy radiated during the events ...
Masaru Nakano   +4 more
openaire   +1 more source

Aerial and Space‐Borne Seismology on Venus: Viability and Design Implications for Future Missions

open access: yesEarth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Venus' evolution remains a mystery because of the lack of in situ geophysical data to constrain its interior structure. Recently‐selected planetary missions VERITAS (NASA), DAVINCI+ (NASA), and EnVision (ESA) will investigate the planet's interior, surface, and atmospheric chemistry.
Quentin Brissaud   +9 more
wiley   +1 more source

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