Results 71 to 80 of about 414 (171)

An Integrated Geophysical Approach to Track Magma Intrusion: The 2018 Christmas Eve Eruption at Mount Etna

Geophysical Research Letters, 2019
On 24 December 2018, a violent eruption started at Mount Etna from a fissure on the southeastern flank. The intrusive phenomenon, accompanied by intense Strombolian and lava fountain activity, an ash‐rich plume, and lava flows, was marked by significant ...
F. Cannavo', M. Sciotto, A. Cannata, G. Di Grazia   +3 more
doaj   +1 more source

The 2025 Mw 7.6 Aomori Megathrust Earthquake in Northeast Japan: Failure of a Structurally and Rheologically Bounded Asperity Beneath a Cold Mantle Wedge

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract To explore mechanisms of rupture segmentation, we invert coseismic GNSS offsets for the 2025 Mw 7.6 Aomori, Japan earthquake. Our preferred curved‐fault solution images a compact thrust rupture at 25–50 km depth with peak slip ∼2.5 m near 35 km.
Xiaolong Zhang, Shaoyang Li, Jinhong Shi, Yuji Itoh, Ji Zhang, Aitaro Kato, Ling Chen   +6 more
wiley   +1 more source

Statistical characteristics of non-volcanic tremor distributions along the Mexican Subduction Zone [PDF]

Solid Earth
We analyze the statistical characteristics of non-volcanic tremor (NVT) sequences in the Mexican subduction zone. To this end, we employ various techniques, including the Gutenberg–Richter relationship, non-extensive statistics, and multifractal ...
Q. Rodríguez-Pérez, Q. Rodríguez-Pérez, V. H. Márquez-Ramírez, F. R. Zúñiga   +3 more
doaj   +1 more source

Detection of deep low-frequency earthquakes in the Nankai subduction zone over 11 years using a matched filter technique

Earth, Planets and Space, 2020
To improve our understanding of the long-term behavior of low-frequency earthquakes (LFEs) along the tremor belt of the Nankai subduction zone, we applied a matched filter technique to continuous seismic data recorded by a dense and highly sensitive ...
Aitaro Kato, Shigeki Nakagawa
doaj   +1 more source

Back‐Propagating Earthquake Rupture Controlled by Fluid‐Modulated Effective Normal Stress

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Back‐propagating earthquake rupture (BPR), where slip migrates opposite to the main rupture direction, is observed in several earthquakes but its origin remains poorly understood, particularly the role of fluids. We use dynamic simulations of frictional sliding coupled with fluids to explore the mechanisms of BPR. Our simulations show that BPR
Jiayi Ye, Luca Dal Zilio, Domenico Giardini   +2 more
wiley   +1 more source

Evidence for Stress Diffusion and Along‐Strike Segmentation in Cascadia Tremor Migrations Lasting Minutes to Weeks

AGU Advances
The properties and rheology of subduction zones have been intensively studied to forecast potential megathrust earthquake scenarios. However, in Cascadia, the absence of recent megathrust events limits available seismic evidence.
Siyuan Zhang, Heidi Houston
doaj   +1 more source

Relationship between moment rate of short-term slow slip events and moment rate of tectonic tremors in a frequency range of 1–10 Hz

Earth, Planets and Space
Simultaneous activations of slow slip events (SSEs) and tectonic tremors are observed along subduction zones, and collectively referred to as episodic tremor and slip (ETS).
Akio Katsumata, Kazuki Miyaoka, Takahiro Tsuyuki, Satoshi Itaba, Masayuki Tanaka, Takeo Ito, Akiteru Takamori, Akito Araya   +7 more
doaj   +1 more source

Does Episodic Tremor and Slip Influence Seismicity in Northern Cascadia?

Seismica
This paper presents a spatial-temporal analysis of potential links between episodic tremor and slip (ETS) and seismicity in northern Cascadia. We define spatial-temporal clusters of tremor episodes to represent ETS between 2006 and 2024, and we merge ...
Madison Bombardier, Johh F. Cassidy, Stan E. Dosso   +2 more
doaj   +1 more source

On the predictability of volcano-tectonic events by low frequency seismic noise analysis at Teide-Pico Viejo volcanic complex, Canary Islands [PDF]

Natural Hazards and Earth System Sciences, 2006
The island of Tenerife (Canary Islands, Spain), is showing possible signs of reawakening after its last basaltic strombolian eruption, dated 1909 at Chinyero. The main concern relates to the central active volcanic complex Teide - Pico Viejo, which poses
M. Tárraga, R. Carniel, R. Ortiz, J. M. Marrero, A. García   +4 more
doaj  

The Marsili Volcanic Seamount (Southern Tyrrhenian Sea): A Potential Offshore Geothermal Resource

Energies, 2014
Italy has a strong geothermal potential for power generation, although, at present, the only two geothermal fields being exploited are Larderello-Travale/Radicondoli and Mt. Amiata in the Tyrrhenian pre-Apennine volcanic district of Southern Tuscany.
Francesco Italiano, Angelo De Santis, Paolo Favali, Mario Luigi Rainone, Sergio Rusi, Patrizio Signanini   +5 more
doaj   +1 more source