The determination of interseismic, coseismic and postseismic deformations caused by the Gökçeada-Samothraki earthquake (2014, Mw: 6.9) based on GNSS data

Tiryakioğlu, İbrahim; Yiğit, Cemal Özer; Yavaşoğlu, Hakan; Saka, M. H.; Alkan, Reha Metin

doi:10.1016/j.jafrearsci.2017.05.012

Cited by 23 publications

(14 citation statements)

References 48 publications

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“…Coseismic displacement are tightly correlated with the time series models. Short term and long-term solution for the displacement are clearly exposed using continuous GPS data (Aktuğ et al, 2010;Tiryakioğlu et al, 2017aTiryakioğlu et al, , 2017bTiryakioğlu et al, , 2019. The observed coseismic displacements in short term solutions of IZMI and MNTS stations are given in Figure 6.…”

Section: Geodetic Network Data and Modellingmentioning

confidence: 99%

“…Moreover, the antenna phase center was derived according to the height-dependent model. During the analysis, LC (L3), which is the ionosphere-independent linear combination of the L1 and L2 carrier waves, and the FES2004 Ocean Tide Loading (OTL) grid was used (Gülal et al, 2013;Tiryakioğlu et al, 2013Tiryakioğlu et al, , 2015Tiryakioğlu et al, , 2017aTiryakioğlu et al, , 2017bTiryakioğlu et al, , 2018bTiryakioğlu et al, , 2019. As a result, daily adjusted coordinates in ITRF2014 frame of all sites were calculated with the accuracy of ~6 mm for the horizontal components.…”

Section: Geodetic Network Data and Modellingmentioning

confidence: 99%

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GPS derived finite source mechanism of the 30 October 2020 Samos earthquake, Mw = 6.9, in the Aegean extensional region

Aktuğ¹,

Tiryakioğlu²,

Sözbi̇li̇r³

et al. 2021

Turkish J Earth Sci

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A submarine area close to the Turkish and Greek border between the cities of Samos-Greece and Seferihisar-Turkey has been shaked on October 30, 2020 by a Mw= 6.9 earthquake. In this study, the finite source mechanism of the Samos earthquake was investigated using geodetic methods and the coseismic behavior of the earthquake was modeled. The observed coseismic displacements at 62 sites were inverted for the fault geometry and the slips. The mainshock did not generate an on-land surface rupture. However, the uniform slip modeling shows a finite source of 43.1 km long and 16 km wide rupture, which slips 1.42 m along a north dipping normal fault extending from the Aegean Sea floor to a depth down to ~13 km. While the uniform slip model is consistent with the seismological solutions and provides a sufficient fit to the far field coseismic offsets, a distributed slip model is necessary to account for the near field coseismic displacements.

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Section: Geodetic Network Data and Modellingmentioning

confidence: 99%

Section: Geodetic Network Data and Modellingmentioning

confidence: 99%

GPS derived finite source mechanism of the 30 October 2020 Samos earthquake, Mw = 6.9, in the Aegean extensional region

Aktuğ¹,

Tiryakioğlu²,

Sözbi̇li̇r³

et al. 2021

Turkish J Earth Sci

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show abstract

“…Geodesy is conventionally a useful approach to understand the faulting processes using slip rate of the interseismic, pre-seismic, coseismic and postseismic deformations (Lisowski, 1997;Reddy & Sunil, 2008;Reilinger, McClusky, Paradissis, Ergintav, & Vernant, 2010;Reilinger et al, 2006;Tiryakioglu, 2015;Tiryakioglu, Yigit, Yavaşoglu, Saka, & Alkan, 2017). For this purpose, InSAR, GPS, SLR and VLBI techniques have been developed since the early 1980s.…”

Section: Geodetic Network In Southwest Turkey and Processingmentioning

confidence: 99%

“…Short-term and long-term solution for the displacement are clearly exposed using continuous GPS data (Aktug et al, 2010;Tiryakioglu et al, 2017). The long-term evaluation is able to inform about the station movements which can be linear, periodic, irregular or episodic.…”

Section: Coseismic Displacementsmentioning

confidence: 99%

Slip distribution and source parameters of the 20 July 2017 Bodrum-Kos earthquake (Mw6.6) from GPS observations

et al. 2017

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Greek-Turkish boundary near the cities Kos and Bodrum has been shaken on July 20, 2017 by a Mw6.6 earthquake. The mainshock is located offshore and did not generate an on-land surface rupture. Analyzing pre-and post-earthquake continuous/survey-type static GPS observations, we investigated co-seismic surface displacements at 20 sites to characterize source parameters and slip-distribution of the mainshock. Fault plane solutions as well as co-seismic slip distribution have been acquired through the inversion of co-seismic GPS displacements modeling the event as elastic dislocations in a half space. Fault plane solution shows a southward dipping normaltype fault segment extending a depth down to ~12 km, which remains within the brittle upper crust. Results from the distributed slip inversion show that the mainshock activated a ~65 km fault section, which has three high slip patches, namely western, central and eastern patches, where the coseismic slips reach up to 13, 26, and 5 cm, respectively. This slip pattern indicates that the pre-earthquake coupling, which is storing the slip deficit, occurred on these three patches.

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“…The positioning precision of Track is baseline-length dependent, with a few millimeters to the centimeter level [13]. Track has been gradually evolved in geophysical and geodetic research, such as earthquake monitoring by SHM et al [14][15][16]. However, it can only process GPS data and relevant research and applications have not been explored yet.…”

Section: Introductionmentioning

confidence: 99%

A Multi-GNSS Differential Phase Kinematic Post-Processing Method

Chen

Meng

et al. 2020

Remote Sensing

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We propose a multiple global navigation satellite system (multi-GNSS) differential phase kinematic post-processing method, expand the current Track ability, and finely tune processing parameters to achieve the best results for research purposes. The double-difference (DD) phase formulas of GLONASS are especially formulated, and the method of arc ambiguity resolution (AR) in post-processing is developed. To verify the feasibility of this AR method, a group of static baselines with ranges from 8 m to 100 km and two kinematic tests were used. The results imply that 100% of ambiguities in short baselines and over 90% in long baselines can be fixed with the proposed ambiguity resolution method. Better than a 10-mm positioning precision was achieved for all the horizonal components of those selected baselines and the vertical components of the short baselines, and the vertical precision for long baselines is around 20 to 40 mm. In the posterior residual analysis, the means of the residual root-mean-squares (RMSs) of different systems are better than 10 mm for short baselines and at the range of 10–20 mm for baselines longer than 80 km. Mostly, the residuals satisfy the standard normal distribution. It proves that the new method could be applied in bridge displacement and vibration monitoring and for UAV photogrammetry.

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The determination of interseismic, coseismic and postseismic deformations caused by the Gökçeada-Samothraki earthquake (2014, Mw: 6.9) based on GNSS data

Cited by 23 publications

References 48 publications

GPS derived finite source mechanism of the 30 October 2020 Samos earthquake, Mw = 6.9, in the Aegean extensional region

GPS derived finite source mechanism of the 30 October 2020 Samos earthquake, Mw = 6.9, in the Aegean extensional region

Slip distribution and source parameters of the 20 July 2017 Bodrum-Kos earthquake (Mw6.6) from GPS observations

A Multi-GNSS Differential Phase Kinematic Post-Processing Method

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