A5063469840- earthquake and tectonic studies
- Earthquake Detection and Analysis
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geophysical Methods and Applications
- Rock Mechanics and Modeling
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Landslides and related hazards
- Geophysics and Gravity Measurements
- Non-Invasive Vital Sign Monitoring
- Disaster Management and Resilience
- Supply Chain Resilience and Risk Management
- Maritime and Coastal Archaeology
- Disaster Response and Management
- Methane Hydrates and Related Phenomena
- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Soil Moisture and Remote Sensing
Istituto Nazionale di Geofisica e Vulcanologia
2018-2024
Aristotle University of Thessaloniki
2013-2020
National Observatory of Athens
2016-2019
Abstract In March 2021 three strong earthquakes with magnitudes (Mw) of 6.3, 6.0, and 5.2 occurred in Thessaly plain, Greece, on 3, 4, 12 March, respectively. The modeling all the sources, by inversion Interferometric Synthetic Aperture Radar Global Positioning System data, indicates a northeast–southwest-trending extensional stress field indications for northeast-dipping sources. unmapped fault source first mainshock (Mw 6.3) is located approximately 6 km to southwest known Larissa (LF)....
We studied the broader area of Thessaloniki in northern Greece and Chalkidiki performed an InSAR campaign to study surface deformation phenomena that have been known exist for at least two decades. Sentinel-1 data (2015–2019) together with drill measurements were exploited focus on specific sites interest. Our results indicate ongoing displacement field. At region Kalochori Sindos—where intense subsidence 1990s was previously found had a natural rebound 2000s—a new period subsidence, caused...
In this work we describe the implementation of a processing chain for fully automatic modeling seismic source parameters and its slip distribution through inversion InSAR displacements generated from EPOSAR service. This consists suite procedures algorithms handling sequence steps: selection highest quality datasets, definition area interest, image sampling, non-linear linear inversions to get, respectively, geometry distribution. A set side interfaces also allows an interactive refinement...
Low-to-moderate magnitude earthquakes often induce small ground displacement. For such events, deformation fields detected by SAR interferometry can be masked or not clearly discernible from the fringes distribution because of presence error sources, as atmospheric artifacts and topographic residuals. We show two examples low-moderate earthquakes, for which we adopted a new automatic tool calculating fringe pattern stemming seismological data. The estimates extent geographic position running...
We study the surface deformation of a moderate size M5+ earthquake swarm-type activity which burst at tip Biga peninsula (western Turkey) in early 2017. No previous M5+earthquakes have been recorded instrumental period on land, however, offshore normal faults, ruptured to produce strong (M > 6) earthquakes. use Interferometric Synthetic Aperture Radar (InSAR) technique and exploit data set Sentinel-1 ALOS-2 images, successfully detect caused by three events sequence constrain their source...
We use Interferometric Synthetic Aperture Radar (InSAR) to study the Cephalonia–Lefkada Transform Fault Zone (CTF) in Ionian Sea. The CTF separates continental subduction north from oceanic south, along Hellenic Subduction Zone. exploit a rich multi-modal radar dataset of most recent major earthquake region, 17 November 2015 Mw 6.4 event, and present new surface displacement results that offer additional constraints on fault segmentation area. Based this dataset, by exploiting available...
Temporal monitoring of terrain movements and satellite observations are used here to monitor geophysical Natural Hazards in northern Greece for the period 1992-2010, applying Persistent Scatterer Interferometry Small Baseline Subset techniques, an attempt address their causes: anthropogenic or natural due geological geomorphological evolution.Our study highlights new areas that were previously unknown be at risk validates remote sensing estimates using drill data, geomechanics hydrogeology...
SUMMARY On the 9th of January 2020, an Mw 6.4 strike-slip earthquake took place north Asian margin Bering Sea. The occurred within known reverse-right-lateral active fault zone, called Khatyrka–Vyvenka, which transverses Koryak Highland from SE to NW and is thought be a surface manifestation portion either plate boundary or northern edge Alaskan stream. No other strong has ever been recorded in this remote uninhabited area few existing seismic stations provide poor quality locations. We...
The 10 June 2012 (UTC 12:44:17.3; lat. 36.441°N, long. 28.904°E, Mw6.0) earthquake sequence, 60 km to the west of Rodos Island, is studied, in an attempt shed light obscure deformation pattern at easternmost end Hellenic Arc. Moment tensor solutions for mainshock and strongest aftershocks revealed operation WNW-ESE dextral strike-slip faulting, with slip vector at~N295°E, approximately orthogonal GPS velocity vectors. strike activated structure generally aligns bathymetric linear escarpments...
On 14 November 2021, a doublet earthquake (M <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">w</inf> 6.2 and M 6.3) struck the Fin area in southern Iran. Utilizing two-pass differential SAR Interferometry (InSAR) method, coseismic deformation fields, retrieved from 12-day pairs descending ascending Sentinel-l as well ALOS-2, demonstrate displacement pattern of maximum 40 cm toward satellite epicentral area. The preliminary slip inversion InSAR...
In 2023, seismic activity of considerable magnitude occurred along the T&#252;rkiye-Syria border, characterised by an Mw 7.8 earthquake on 6th February and was followed 7.5 event, nine hours later. These earthquakes, which are strongest recorded in recent years, resulted over 50,000 casualties related with East Anatolian Fault Zone &#8212;a 600 km-long plate boundary where Arabian plates meet. To analyse these events, we leveraged data from diverse satellites, including SAOCOM-1,...
The active collision of the Apulian continental lithosphere with Eurasian plate characterizes tectonics Epirus region in northwestern Greece, invoking crustal shortening. has not experienced any strong earthquakes during instrumental era and thus there is no detailed knowledge way deformation being expressed. In March 2020, a moderate size (Mw 5.8) earthquake sequence occurred close to Kanallaki village Epirus. mainshock major aftershock focal mechanisms are compatible reverse faulting, on...
In this study, an analysis of the November 12, 2017 northwestern Iran earthquake (Mw 7.3) is presented. A multi-frequency Synthetic Aperture Radar Interferometry (InSAR) approach was adopted to retrieve ground deformation due mainshock. Then, InSAR results were used as input for source modeling seismic event. C-Band Sentinel-l (IW TOPSAR acquisition mode) and L-Band ALOS-2 (Wide Swath) SAR data along both ascending descending orbits processed. show a displacement pattern in epicentral area,...