Synchronization of small-scale seismic clusters reveals large-scale plate deformation - Observatoire des Sciences de la Terre, de l'Univers et de l'Environnement de Grenoble Accéder directement au contenu
Article Dans Une Revue Earth Planets and Space Année : 2022

Synchronization of small-scale seismic clusters reveals large-scale plate deformation

Résumé

It has long been observed that periods of intense seismic activity in a region alternate with periods of relative quiescence, but establishing whether or not this intermittency is driven by broad-scale physical processes occurring in the Earth, remains a challenge. Here, we address this question of long-range triggering by a large-scale analysis of evolution of the seismicity between 2003 and 2017 in the Anatolia region. Two multi-year periods of synchronous high seismicity rate in 27 seismicity clusters across the Anatolian plate are evidenced before a relatively uniform quiescence period. We argue that two remote tectonic processes are important for the timing of these activities: the 2004 M9.2 Sumatra earthquake and the 2008-2011 episode of slab rollback/deformation in the Hellenic subduction, even if a clear causal mechanism is still lacking.
Fichier principal
Vignette du fichier
s40623-022-01725-z.pdf (12.23 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

insu-03858149 , version 1 (17-11-2022)

Licence

Paternité

Identifiants

Citer

Hayrullah Karabulut, Michel Bouchon, Jean Schmittbuhl. Synchronization of small-scale seismic clusters reveals large-scale plate deformation. Earth Planets and Space, 2022, 74, ⟨10.1186/s40623-022-01725-z⟩. ⟨insu-03858149⟩
33 Consultations
21 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More