The 13 May 2008 dike intrusion on the northern flank of Mt. Etna provides a rare case in which surface structural evidence can be directly compared with real-time geophysical observations. In this study, we integrate structural field data, high-precision earthquake relocations, focal mechanism analysis, and energy-balance considerations to reconstruct the propagation and arrest of the dike. The mapped dry fracture field offers robust geometric validation on the depth of the dike tip (200–600 m), in agreement with deformation modeling and seismic analysis. The evolution of focal mechanisms shows a transition from normal/strike-slip faulting to reverse faulting in the final stage, indicating the onset of a localized compressional regime consistent with dike arrest. The cumulative seismic moment closely matches the energy value expected to be released by the modeled dike, suggesting that the available elastic strain energy was largely exhausted. The convergence of structural, seismic, and energy-balance evidence makes the 2008 intrusion a benchmark case for rapid, real-time assessment of dike arrest and volcanic hazard mitigation.
The 1973 MS7.6 Luhuo earthquake is the most representative strike-slip event in the Xianshuihe fault zone, yet published source models differ markedly, and the mechanism that arrested its rupture near Renda remains poorly understood. Using spectral-element dynamic rupture simulations with a nonplanar fault geometry, th...
This study characterizes seismicity and stress regime in the westernmost part of the North Anatolian Fault Zone (NAFZ), focusing on the Saros segment, where dextral strike-slip deformation transitions into the transtensional northern Aegean domain. Unlike previous regional studies that combine Marmara and broader Aegea...
Burçin Didem Tamtaş· Bitlis Eren Üniversitesi Fen...· 0 citations
On 23 January 2024, the Mw 7.0 Wushi earthquake occurred along the Maidan Fault at the boundary between the southwestern Tianshan Mountains and the Tarim Basin. This event, together with its subsequent aftershocks, provides a valuable opportunity to investigate fault rupture, stress perturbation, and aftershock trigger...
Jie Zhu, Xu Zhang, Yue-Bing Wang et al.· Remote Sensing· 0 citations
Earthquakes at subduction zones are among the most powerful natural events on Earth. During the interseismic, coseismic, and postseismic phases, interseismic coupling, co- and postseismic slip along the megathrust, and viscoelastic relaxation in the mantle produce the observed surface displacements. Different combinati...
Developing geoenergy technologies such as Enhanced Geothermal Systems (EGS) requires underground fluid injection operations, which, under certain conditions, can induce large-magnitude earthquakes. To mitigate the seismic hazard, various injection protocols have been proposed to regulate operational parameters. This st...
Mohammad J. A. Moein, C. Langenbruch, S. Shapiro· Geothermics· 4 citations
A magnitude 6.9 earthquake struck northern Cebu on 30 September 2025, with a shallow hypocenter at ∼5 km depth located offshore about 19 km NE of Bogo City. No active fault had previously been mapped within the epicentral region, raising questions about the earthquake source and the distribution of active deformation i...
D. C. E. Llamas, Jeffrey S. Perez, D. J. L. Buhay et al.· Frontiers in Earth Science· 0 citations
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