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Temporal shifts in displacement vectors: new insights into the unprecedented Mayotte volcanic event through advanced GNSS analysis     
Yazarlar (2)
Atınç Pırtı
Yıldız Teknik Üniversitesi, Türkiye
Doç. Dr. Seçil KARATAY Doç. Dr. Seçil KARATAY
Kastamonu Üniversitesi, Türkiye
Devamını Göster
Özet
The Mayotte seismic-volcanic crisis, initiated in May 2018, represents one of the most significant submarine magmatic events ever monitored in near real-time. This study leverages a nine-year Global Navigation Satellite System (GNSS) time series (2014–2023) from the MAYG station to investigate the temporal evolution and directional changes in ground displacement vectors associated with the event. Using both static and kinematic GNSS processing, including Precise Point Positioning with Ambiguity Resolution (PPP-AR), we identify three distinct phases of deformation: a north-eastward pre-crisis trend, an abrupt eastward shift coinciding with the peak magmatic activity (May 2018 – June 2019), and a post-crisis return to north-eastward motion with diminished but ongoing subsidence. The data reveal a dramatic 20 cm vertical subsidence and significant horizontal movement indicative of deep magma withdrawal and crustal readjustment. High-resolution analyses during the initial five days of the crisis suggest a sequence of discrete magmatic pulses. Our findings provide new insights into the geophysical response of volcanic island settings to deep-seated submarine eruptions and highlight the importance of integrating advanced GNSS techniques in understanding complex crustal deformation processes.
Anahtar Kelimeler
displacement vector analysis | GNSS deformation monitoring | Mayotte seismic-volcanic crisis | PPP-AR geodetic technique | submarine volcanism
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Baltica
Dergi ISSN 1648-858X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 05-2025
Cilt No 38
Sayı 1
Sayfalar 65 / 80
Doi Numarası 10.5200/baltica.2025.1.6
Makale Linki chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://baltica.gamtc.lt/administravimas/uploads/06__pirti__baltica_38_1_683a273bc1164.pdf