Plate convergence in the Cyprean Arc

Ben‐Avraham, Zvi; Kempler, Ditza; Ginzburg, A.

doi:10.1016/0040-1951(88)90093-5

Cited by 57 publications

(32 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, the Cyprus Arc can be divided into three (western, central, and eastern) parts (Ben-Avraham et al 1988). The subduction processes are still active in the western portion of the Cyprus Arc, under Southern Turkey, as highlighted by deep earthquakes (Ambraseys and Adams 1993;Ben-Avraham et al 1988;Jackson and McKenzie 1984) as well as by deformation of sedimentary deposits at the surface along the western segment of the arc (Anastasakis and Kelling 1991;Wong et al 1971). In the central part, on the contrary, intense deformative processes are shallower, mainly related to the collision between the Eratosthene seamount and Cyprus Arc that here influenced the evolution of the subduction.…”

Section: Geological and Tectonic Settingsmentioning

confidence: 99%

Regional centroid moment tensor solutions in Cyprus from 1977 to the present and seismotectonic implications

et al. 2011

View full text Add to dashboard Cite

We analyzed digital seismic records in order to extend back in time the catalog of regional centroid moment tensors (RCMTs) for the Cyprus region. We applied the analysis and inversion methodology also used for the present-day seismicity on seismograms recorded at regional distance. We computed 18 new regional CMTs of earthquakes of moderate magnitude (4.8≤M≤5.5) which occurred in the Cyprus region for the time span 1977-1996. These new focal mechanisms improved the knowledge given by the previously computed solutions carried out by other institutions, as well as the dataset of available earthquake source parameters. The complete focal mechanism database contributed to better define the deformation styles in the study area and to obtain a detailed characterization of the geodynamics of the Cyprus area. New RCMTs support the hypothesis that Cyprus is located in the middle of the transition area from subduction to continental collision along the Africa-Arabian-Eurasian boundary. In particular, data confirm (a) this transition zone is strictly located west of Cyprus, probably related to a tear in the subduction system, and (b) the still active compression in the Cyprus Arc can be seen as a starting point of the continental collision eastward.

show abstract

Section: Geological and Tectonic Settingsmentioning

confidence: 99%

Regional centroid moment tensor solutions in Cyprus from 1977 to the present and seismotectonic implications

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Its western part is highly deformed and seismically active, and may confirm the postulation of transcurrent fault (Wong et al 1971;Maamoun et al 1980;Ben-Avraham and Nur 1986). Seismic activity and gravity anomalies indicate that the northward subduction of the African plate beneath the Turkish Plate is the mode of convergence along the western segment of the Cyprian Arc (Ben-Avraham et al 1988). …”

Section: Geology and Tectonicsmentioning

confidence: 83%

Multi-seismotectonic models, present-day seismicity and seismic hazard assessment for Suez Canal and its surrounding area, Egypt

Eleraki

el-aal

Mostafa

2015

Bull Eng Geol Environ

View full text Add to dashboard Cite

Suez Canal is the most important navigational water stream in the world. It separates the eastern part of the Nile Delta from northern Sinai and controls 40 % of ship movement in the world. There is also the new Suez Canal project, which is one of the most important new projects in Egypt. The purpose of this study is to assess seismic hazards at and around Suez Canal. The technique used in hazard estimation is the probabilistic seismic hazard approach (PSHA). Alternative seismotectonic source models were included in the hazard assessment to account for the epistemic uncertainty. Contour maps were produced for ground motion on rock for spectral periods 0.2, 0.5, 1 and 2 s, as well as Peak Ground Acceleration (PGA) for return periods of 75, 475, 975 and 2475 years (equivalent to 20, 10, 5 and 2 % probability of exceeding ground motion in 50 years, respectively). The Uniform Hazard Spectra (UHS) was also estimated for some cities inside the study area on rock for return periods of 75, 475, 975 and 2475 years. The results show that the highest hazard level is at the southeastern part of the study area with maximum expected spectral acceleration of 280.3 cm/s 2 (gal) at a spectral period of 0.2 s for a return period of 475 years. The results of this study can be used for seismic microzonation, seismic risk mitigation and for earthquake engineering purposes.

show abstract

“…Deep seismic events in the Gulf of Antalya and beneath Turkey have prompted some authors (McKenzie 1972;Ben-Avraham et al 1988) to suggest that a zone of subduction with a marked Benioff zone exists on the western branch of the Cyprus Arc. Still, deep events do not occur as expected, orthogonal to the supposed subduction zone, but rather, much further north.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, tectonic processes in the Cyprus region are complicated by the collision of the Eratosthenes Seamount with Cyprus (Robertson 1998a) and the westward lateral escape of Anatolia (McKenzie 1972;Le Pichon et al 1995;Reilinger et al 1997): such processes may exclude the existence of an actively subducting slab in this region. The blockage of the subduction process along the central and eastward segments of the Cyprus Arc was inferred by many authors (Ben-Avraham et al 1988Kempler and Ben-Avraham 1987;Kempler and Garfunkel 1994) on the basis of seismic reflection data as well as seismicity observations. Recent studies have confirmed that the deformation from Cyprus to the Syrian coast is partitioned along strike-slip fault systems distributed over a wide zone, expressed in the bathymetry through the Kyrenia-Larnaca-Latakia Ridges (Ben-Avraham et al 1995;Vidal et al 2000a,b).…”

Section: Introductionmentioning

confidence: 99%

The Anaximander Mountains: a clue to the tectonics of southwest Anatolia

2003

View full text Add to dashboard Cite

The offshore Anaximander Mountains are an important link between the Hellenic and Cyprus arcs. They were formed by southeastward rifting from Turkey in post‐Miocene time. Gravity data have shown that the eastern part of the Anaximander Mountains is different from the western part; multibeam mapping seems to confirm that the eastern Anaximander Mountains have affinity with the Florence Rise structure (western Cyprus Arc). Faulting along and across the latter feature is characterized in the seismic data by anastomosing faults and pop‐up flower structures. It is likely that progressive adjustment to incipient collision developed into a broad zone of NW–SE transpressive wrenching extending towards south Turkey. In contrast, the western mountains are more directly related to the opening of the Rhodes Basin and the Finike Basin, as transtension may have dominated in southwest Turkey since the Pliocene. The connection with onshore Turkey is still unclear, but could be related to the Fethiye–Burdur Fault Zone that defines the western boundary of the complex Isparta Angle. The Anaximander Mountains and the Isparta Angle form together a tectonic accommodation zone between the active deformation in southwestern Turkey and the Aegean region and the tectonically quieter Cyprus region. Copyright © 2003 John Wiley & Sons, Ltd.

show abstract

Plate convergence in the Cyprean Arc

Cited by 57 publications

References 14 publications

Regional centroid moment tensor solutions in Cyprus from 1977 to the present and seismotectonic implications

Regional centroid moment tensor solutions in Cyprus from 1977 to the present and seismotectonic implications

Multi-seismotectonic models, present-day seismicity and seismic hazard assessment for Suez Canal and its surrounding area, Egypt

The Anaximander Mountains: a clue to the tectonics of southwest Anatolia

Contact Info

Product

Resources

About