Vasiliki Mouslopoulou

Vasiliki Mouslopoulou
National Observatory of Athens | NOA · Institute of Geodynamics

PhD
Active Tectonics

About

69
Publications
19,769
Reads
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984
Citations
Additional affiliations
April 2018 - September 2021
National Observatory of Athens
Position
  • Researcher
January 2013 - present
Freie Universität Berlin
Position
  • Lecturer
Description
  • Paleoseismology
November 2012 - March 2018
Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ
Position
  • Senior Researcher
Education
January 2003 - August 2006
August 1998 - June 2000
University of Bergen
Field of study
  • Solid Earth Physics
September 1992 - July 1997

Publications

Publications (69)
Article
Full-text available
The Kaikōura Earthquake uplifted Kaikōura Peninsula by ≤∼1 m. Uplift in 2016 mainly resulted from slip on an offshore thrust fault (OSTF), modelled to splay from the plate-interface, and was further influenced by slip on two newly identified faults (Armers Beach Fault, ABF; Te Taumanu Fault, TTF) mapped onshore from differential lidar (D-lidar). Fo...
Article
Full-text available
Upper-plate normal faults along forearcs often accumulate slip during >Mw 6 earthquakes. Such normal faults traverse the forearc of the Hellenic Subduction System (HSS) in Greece and are the focus of this study. Here, we use detailed field-mapping and analysis of high-resolution Digital Elevation Models (DEMs) to study 42 active normal faults on th...
Article
Full-text available
Slow slip events (SSEs) at subduction zones can precede large-magnitude earthquakes and may serve as precursor indicators, but the triggering of earthquakes by slow slip remains insufficiently understood. Here, we combine geodetic, Coulomb wedge and Coulomb failure-stress models with seismological data to explore the potential causal relationship b...
Conference Paper
Full-text available
The month-to-year-long deformation of the Earth’s crust where active subduction zones terminate is poorly explored. Here we report on a multidisciplinary dataset that captures the synergy of slow-slip events, earthquake swarms and fault-interactions during the ~5 years leading up to the 2018 Mw 6.9 Zakynthos Earthquake at the western termination of...
Poster
Full-text available
Clusty is an open source toolbox for clustering earthquakes based on the similarity of waveforms recorded across a seismic network. The cross-correlation based waveform similarity is a joint measure of differences in location and focal mechanism and allows the study of active faults mapped by clusters of similar events. Clusty is designed in a fl...
Article
Located between the Northern Province of Zambia and the southeastern Katanga Province of the Democratic Republic of Congo, Lakes Mweru and Mweru Wantipa are part of the southwest extension of the East African Rift System (EARS). Fault analysis reveals that, since the Miocene, movements along the active Mweru-Mweru Wantipa Fault System (MMFS) have b...
Article
Full-text available
The month-to-year-long deformation of the Earth's crust where active subduction zones terminate is poorly explored. Here we report on a multidisciplinary data set that captures the synergy of slow-slip events, earthquake swarms and fault interactions during the ∼5 years leading up to the 2018 Mw 6.9 Zakynthos Earthquake at the western termination o...
Data
The following text (Text S1-S6) and data (Supplementary Figs S1-S23, Supplementary Tables S1-S5 and Movies S1-S2) present details on the calculation of various seismic parameters (b-value, magnitude of completeness, etc.), calculation of moment tensor solutions, analysis and modeling of GPS data and analysis of fault kinematics, complementing those...
Article
Clusty is a new open source toolbox dedicated to earthquake clustering based on waveforms recorded across a network of seismic stations. Its main application is the study of active faults and the detection and characterization of faults and fault networks. By using a density-based clustering approach, earthquakes pertaining to a common fault can be...
Article
Full-text available
Active normal faults on the Mediterranean island of Crete form prominent limestone scarps together with basin and range topography. These faults mainly strike E‐ESE and N‐NNE in southern and northern Crete, respectively, with fault sets commonly intersecting and northerly‐trending faults being a factor of three more abundant. Lengths, displacements...
Conference Paper
Full-text available
Fault growth is typically achieved by discrete increments of slip which accrue during earthquakes. Comparison of geologically short-term (200 yrs to 20 kyr) displacements from individual earthquakes or active scarps with geologically long-term (>20 kyr) fault displacement patterns permits characterisation of fault growth from millennial to million-...
Article
Full-text available
The importance of splay‐thrust faults in subduction seismogenesis is increasingly acknowledged; however, their elastic interaction with the plate interface remains unclear. Here, we use GPS velocities, constrained by millennial fault slip rates, to study elastic fault‐interactions between the plate interface and its upper‐plate splay‐thrust faults...
Preprint
The month-to-year-long deformation of the Earth’s crust where active subduction zones terminate is poorly explored. Here we report on a multidisciplinary dataset that captures the synergy of slow-slip events, earthquake swarms and fault-interactions during the ~5 years leading up to the 2018 Mw 6.9 Zakynthos Earthquake at the western termination of...
Article
Full-text available
The existence of active faults near large cities poses significant risk to the life and property of its inhabitants as well as to its public infrastructure. Here, we investigate the interplay between seismicity, active faulting, and interseismic strain accumulation within a radius of ∼50 km from the metropolitan area of Athens, the capital of Greec...
Preprint
Active normal faults on the eastern Mediterranean island of Crete form prominent limestone scarps together with basin and range topography. These faults mainly strike E-ESE and N-NNE in southern and northern Crete, respectively, with fault sets commonly intersecting and northern-trending faults a factor of three more abundant. Displacements, length...
Article
Full-text available
The 2016 Mw=7.8 Kaikōura earthquake (South Island, New Zealand) caused widespread complex ground deformation, including significant coastal uplift of rocky shorelines. This coastal deformation is used here to develop a new methodology, in which the upper living limits of intertidal marine biota have been calibrated against tide-gauge records to qua...
Preprint
Full-text available
The 2016 Mw 7.8 Kaikōura Earthquake (South Island, New Zealand) caused widespread complex ground deformation including significant coastal uplift of rocky shorelines. This coastal deformation is used here to develop a new methodology, in which intertidal marine biota have been calibrated against tide-gauge records to quantitatively constrain pre-de...
Conference Paper
Full-text available
Active subduction of the African plate beneath the Eurasian plate along the Hellenic margin in Eastern Mediter-ranean occurs at rates of ∼35 mm/yr and is primarily accommodated aseismically. Despite its aseismic character, large-magnitude earthquakes on the Hellenic forearc do occur, with the 365 AD M ∼8.5 mega-event being the most widely documente...
Conference Paper
Full-text available
Displacement rates on individual faults within continental fault systems depart from their million-year average rates by up to three orders of magnitude with the size of these departures inversely related to sampling length-scale (temporal and/or spatial) and to fault length. The increased stability of fault displacement rates at greater temporal a...
Conference Paper
Full-text available
Fault growth is typically achieved by discrete increments of slip which accrue during earthquakes. Comparison of short-term displacements from individual earthquakes or active scarps with long-term fault displacement patterns permits characterisation of fault growth from millennial to million-year timescales. Fault slip distribution during individu...
Conference Paper
Subduction systems globally terminate, allowing plate-motion to be transferred from the oceanic megathrust onto continental transform faults. The mechanism of this kinematic transition over earthquake timescales is, however, poorly understood due to lack of relevant data. Here, we zoom into the 2016 Mw7.8 Kaikōura Earthquake in New Zealand, the fir...
Article
Subduction systems globally terminate, allowing plate-motion to be transferred from the oceanic megathrust onto continental and/or oceanic transform faults. The mechanism of this kinematic transition over earthquake timescales is, however, poorly understood due to a lack of relevant data. Here, we study the 2016 Mw7.8 Kaikōura Earthquake in New Zea...
Article
Map-scale faults located close to one another (e.g., <5 km) are likely to interact. We explore the impact of fault interactions on the thousand to million-year growth patterns of the Eastern Mirabello Fault System (EMFS), an active normal fault-system in the upper-plate of the Hellenic subduction margin. Kinematic analysis of fault-displacement dat...
Article
Full-text available
The extent to which climate, eustasy and tectonics interact to shape the late Quaternary landscape is poorly known. Alluvial fans often provide useful indexes that allow the decoding of information recorded on complex coastal landscapes, such as those of the eastern Mediterranean. In this paper we analyse and date (using infrared stimulated lumines...
Article
The M7.8 Kaikoura Earthquake that struck the northeastern South Island, New Zealand, on November 14, 2016 (local time), is one of the largest ever instrumentally recorded earthquakes in New Zealand. It occurred at the southern termination of the Hikurangi subduction margin, where the subducting Pacific Plate transitions into the dextral Alpine tran...
Article
Full-text available
The extent to which climate, eustacy and tectonics interact to shape the late Quaternary landscape is poorly known. Alluvial fans often provide useful indexes that allow decoding the information recorded on complex coastal landscapes, such as those of Eastern Mediterranean. In this paper we analyse and date (using optically stimulated luminescence...
Article
Full-text available
In this study we utilize regional and teleseismic earthquake moment tensor solutions in order to infer the contemporary crustal stress in the Greek region. We focus on crustal earthquakes and select only solutions with good waveform fits and well-resolved nodal planes. A dataset of 1614 focal mechanisms is used as input to a regional-scale damped s...
Conference Paper
Η ελληνική ζώνη υποβύθισης έχει παράξει μέσα στους ιστορικούς χρόνους, μεγάλους καταστροφικούς σεισμούς με συνοδά κύματα τσουνάμι. Ωστόσο, ο ρυθμός επανάληψης αυτών των σεισμών παραμένει ελάχιστα προσδιορισμένος. Σε αυτή την εργασία μελετήσαμε την σεισμική ιστορία της ελληνικής ζώνης υποβύθισης σε βάθος περίπου 50 χιλιάδων ετών, χρονικό παράθυρο...
Article
Full-text available
Coastal uplift is common in continental forearc systems, with elevated paleoshorelines indicating that uplift rates can vary dramatically over time on individual margins. The origins of these changes in uplift rates are examined using a global dataset of paleoshorelines together with 2D numerical models of subduction systems. Empirical paleoshoreli...
Conference Paper
Full-text available
The Hellenic region is the seismically most active area in Europe, having experienced numerous large magnitude catastrophic earthquakes and associated devastating tsunamis. A means of mitigating these potential hazards is by better understanding the patterns of spatial and temporal deformation of the crust across the Hellenic orogenic system, over...
Article
Full-text available
The Hellenic subduction margin in the Eastern Mediterranean has generated devastating historical earthquakes and tsunamis with poorly known recurrence intervals. Here stranded paleoshorelines indicate strong uplift transients (0-7 mm/yr) along the island of Crete during the last ∼50 kyr due to earthquake clustering. We identify the highest uplift r...
Article
Full-text available
The late-Cenozoic kinematic and late-Pleistocene paleoearthquake history of the Spili Fault is examined using slip-vector measurements and insitu cosmogenic (36Cl) dating, respectively. The Spili Fault appears to have undergone at least three successive but distinct phases of extension since Messinian (∼7 Ma), with the most recent faulting resultin...
Article
Full-text available
The spatio-temporal evolution of normal faulting and submarine volcanism during the Mid-Miocene to Recent (<16 Ma) in the Taranaki Basin, New Zealand, provides insights into the processes driving rifting and volcanism. In the Taranaki Basin high sedimentation rates have led to the blanketing and preservation of mainly submarine volcanic edifices an...
Article
Full-text available
The amount of extension accommodated in active rifts by earthquakes that do not rupture the ground surface (e.g., <Mw 5.5) is often poorly constrained. The Matata Earthquake Sequence (MES), a high-quality dataset of 2563 relocated microearthquakes (1 < Mw < 4.7) that ruptured the Taupo Rift in New Zealand over a period of 49 months, has been used t...
Article
Full-text available
The Weibull distribution is often used to model the earthquake interevent times distribution (ITD). We propose a link between the earthquake ITD on single faults with the Earth’s crustal shear strength distribution by means of a phenomenological stick–slip model. For single faults or fault systems with homogeneous strength statistics and power-law...
Conference Paper
Full-text available
The Rare Earth Elements and Yttrium (REE-Y) have recently been proposed as good proxies for identifying rupture zones on carbonate fault scarps. Indeed, fluctuations in the REE-Y concentrations along a fault plane may be linked to the number and size of earthquakes that ruptured the fault. The enrichment is attributed to the contact of the soil wit...
Conference Paper
Full-text available
The paleoearthquake activity on the Spili Fault is examined using a novel methodology that combines measurements of Rare Earth Elements (REE) and of in situ cosmogenic 36Cl on the exhumed fault scarp. Data show that the Spili Fault is active and has generated a minimum of five large-magnitude earthquakes over the last ~16500 years. The timing and,...
Article
The catastrophic earthquakes that recently (September 4th, 2010 and February 22nd, 2011) hit Christchurch, New Zealand, show that active faults, capable of generating large-magnitude earthquakes , can be hidden beneath the Earth's surface. In this article we combine near-surface paleoseismic data with deep (<5 km) onshore seismic-reflection lines t...
Article
Editor: Y. Ricard Keywords: rare earth elements carbonate scarp soil paleoearthquake normal fault Crete Recent work (Carcaillet et al., 2008; Manighetti et al., 2010) has utilised a well-established earthquake record on a normal fault in Italy (the Magnola Fault) to successfully test a new method for identifying paleoearthquakes on carbonate rocks:...
Article
Full-text available
Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or to fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake seq...
Article
Full-text available
Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or to fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake seq...
Conference Paper
Full-text available
Sampling biases in the paleoseismological data): The recent earthquakes in Christchurch, New Zealand, show that active faults, capable of generating large-magnitude earthquakes, can be hidden beneath the Earth's surface. Here we combine near-surface paleoseismic data with deep (<5 km) onshore seismic-reflection lines to identify sub-resolution acti...
Article
Full-text available
The tectonic origin, palaeoearthquake histories and slip rates during the last c. 26 ka have been examined for six normal faults (referred to here as the Rahotu, Oaonui, Kina, Ihaia, Kiri and Pihama faults) within the Taranaki Rift, New Zealand. A minimum of 13 ground-surface rupturing palaeoearthquakes have been recognised on four of the faults us...
Article
Full-text available
Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake sequen...
Article
Full-text available
High-quality Light Detection and Ranging (lidar) data collected across the Rangitaiki Plains, the fastest extending section of the onshore Taupo Rift, New Zealand, reveal 122 active fault traces and provide new constraints on displacements, displacement rates and paleoearthquakes of the normal faults in the rift. The identified lineaments are scarp...
Article
Full-text available
High-quality Light Detection and Ranging (lidar) data collected across the Rangitaiki Plains, the fastest extending section of the onshore Taupo Rift, New Zealand, reveal 122 active fault traces and provide new constraints on displacements, displacement rates and paleoearthquakes of the normal faults in the rift. The identified lineaments are scarp...
Article
Full-text available
Displacement rates for normal and reverse faults (n = 57) are generally higher when averaged for the Holocene (∼10 ka) than for the late Quaternary (∼300 ka) and longer time scales. Holocene acceleration of displacement rates could be attributed to g geological processes that produce increases of tectonic tempo. We propose an alternative model in w...
Article
Full-text available
The North Island Fault System (NIFS) is the longest and highest slip-rate active strike-slip fault system within the Hikurangi subduction margin in New Zealand, accommodating up to 10 mm/a of the margin-parallel plate motion. Displacement of landforms over the last c. 30 ka indicates a gradual northward change from right-lateral strike-slip to obli...
Chapter
Over long temporal (million years) and spatial (tens of meters to kilometres) scales faults interact to produce coherent patterns of fault growth. Here we test the validity of fault interactions during timescales that span seconds to years (earthquake timescales) and investigate the growth patterns of faults due to slip triggered by microearthquake...
Article
Full-text available
Displacements on tectonic faults primarily accrue during earthquakes at rates that vary through time. To examine the processes that underlie the temporal changes in fault displacement rates we analyse displacements and displacement rates for time periods from the present to 5, 10, 20, 300, 500, 1000 and 5000 kyr for 261 active reverse or normal fau...
Article
Full-text available
Displacement rates for normal and reverse faults (n = 57) are generally higher when averaged for the Holocene (~10 ka) than for the late Quaternary (~300 ka) and longer time scales. Holocene acceleration of displacement rates could be attributed to geological processes that produce increases of tectonic tempo. We propose an alternative model in whi...
Article
Full-text available
Intersecting strike-slip and normal fault systems form either two or three plate configurations. In circumstances where they intersect to form a triple junction, internal block deformation produces a quasi-stable 3-D configuration permitting maintenance of both the regional geometry and kinematics of the intersection. This paper examines the tempor...