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The Hellenic arc is one of the most active seismic zones in western Eurasia. [2] It has regularly been the source for magnitude 7 earthquakes in the last hundred years of instrumental recording and the location for at least two historical events that were probably of about magnitude 8 or more, the 365 Crete earthquake and the 1303 Crete earthquake.
The Hellenic Trench, with the inner South Aegean Volcanic Arc, and the outer non-volcanic Hellenic arc [1]: 34 . The Hellenic Trench (HT) is an oceanic trough located in the forearc of the Hellenic arc, an arcuate archipelago on the southern margin of the Aegean Sea plate, or Aegean Plate, also called Aegea, the basement of the Aegean Sea.
The Hellenic arc, the most likely location for this earthquake, is an arcuate tectonic feature related to the subduction of the African plate beneath the Aegean Sea plate.It is one of the most active seismic zones in western Eurasia and has a history of large earthquakes that also affect Egypt.
Once the Mediterranean Ridge was recognised as an accretionary complex, the majority of geoscientists regarded the Hellenic trenches as features within the forearc region of the Hellenic arc, created by some combination of extension, strike-slip or thrusting within the crust of the Aegean Sea plate. Some geoscientists continue to refer to the ...
This region in the Mediterranean is part of the Hellenic arc and is known for its frequent and violent seismic activity and is home to Europe's deadliest earthquakes. The island of Crete in particular lies above a convergent boundary where the Aegean Sea and African plates meet, specifically the African plate subducting beneath the Aegean Sea.
The Kythira–Antikythira Strait is situated within the Western Hellenic arc. It measures approximately 100 kilometres (62 mi) in length and is situated between the Peloponnese and the island of Crete. [1] [2] [3] Many ships have sunk in the area, including HMS Greyhound (H05), HMS Gloucester (62), and SS Ivernia. [4]
It sits in what is known as the Hellenic arc, [1] which is in an area that is highly vulnerable to seismic activity, and historically always has been, dating back to the 226 BC Rhodes earthquake. [2] Currently the island of Rhodes is undergoing a counter-clockwise rotation (17° ±5° in the last 800,000 years) associated with the south Aegean ...
While HGRS87 is still widely used for most civilian uses, [7] it is partly replaced by the new Hellenic Terrestrial Reference System 2007 or HTRS07 (SRID=96758). HTRS07, which was specified for the Hellenic Positioning System (HEPOS) project, is GPS based and is compatible with European Terrestrial Reference System 1989 (ETRS89).