Detecting Millimetric Slow Slip Events Along the North Anatolian Fault With GNSS

Abstract Active faults release part of the elastic strain energy stored in the crust via aseismic slip, either through slow slip events (SSEs) or steady slowly creep. However, spatial and temporal interactions between these different styles of aseismic slip have yet to be quantified especially at depth. Along the central section of the North Anatolian Fault, we apply a Multichannel Singular Spectrum Analysis (MSSA) on GNSS time series of ground motion to detect a 4.8 0.08 shallow SSE (2–5 km depth) lasting for 26 5 days, in agreement with local creepmeter observations. Our observations confirm the recurrence of SSEs next to a steadily creeping section of the fault. Finally, we discuss how steady creep and SSEs interact spatially and temporally along the fault segment.

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Publication Details

Journal
Geophysical Research Letters
Published
2025-05-19
DOI
https://doi.org/10.1029/2024gl111428
Citations
2
Primary Topic
earthquake and tectonic studies
Type
article
Field-Weighted Citation Impact
3.73

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article

Detecting Millimetric Slow Slip Events Along the North Anatolian Fault With GNSS

Jean‐Mathieu Nocquet, Uǧur Doǧan, Ziyadin Çakır, Alpay Özdemir et al.
2 citations
Geophysical Research Letters
earthquake and tectonic studies
3.73
article

Detecting Millimetric Slow Slip Events Along the North Anatolian Fault With GNSS

Jean‐Mathieu Nocquet, Uǧur Doǧan, Ziyadin Çakır, Alpay Özdemir, Jorge Jara, Romain Jolivet, Roger Bilham, Semih Ergintav
article en
2 citations

Abstract

Abstract Active faults release part of the elastic strain energy stored in the crust via aseismic slip, either through slow slip events (SSEs) or steady slowly creep. However, spatial and temporal interactions between these different styles of aseismic slip have yet to be quantified especially at depth. Along the central section of the North Anatolian Fault, we apply a Multichannel Singular Spectrum Analysis (MSSA) on GNSS time series of ground motion to detect a 4.8 0.08 shallow SSE (2–5 km depth) lasting for 26 5 days, in agreement with local creepmeter observations. Our observations confirm the recurrence of SSEs next to a steadily creeping section of the fault. Finally, we discuss how steady creep and SSEs interact spatially and temporally along the fault segment.

Geophysical Research LettersVol. 52(10)
Centre National de la Recherche Scientifique (FR), Institut de physique du globe de Paris (FR), Cooperative Institute for Research in Environmental Sciences (US), Institut Universitaire de France (FR), University of Colorado Boulder (US), Adıyaman University (TR), Université Côte d'Azur (FR), Université Paris Cité (FR), Université Paris Sciences et Lettres (FR), École Normale Supérieure - PSL (FR), Yıldız Technical University (TR), Observatoire de la Côte d’Azur (FR), GFZ Helmholtz Centre for Geosciences (DE), Laboratoire de Géologie de l’École Normale Supérieure (FR), Institut de Recherche pour le Développement (FR), Istanbul Technical University (TR)
National Science Foundation, HORIZON EUROPE European Research Council
Affordable and clean energy
Openalex Percentile: Top 9%
earthquake and tectonic studies
3.73
DOIOpen Access PDFOpenAlex
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