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479 BC Potidaea Earthquake
The 479 BC Potidaea tsunami is the oldest record of a tsunami in human history.Smid, T. C.: "'Tsunamis' in Greek Literature", ''Greece & Rome'', 2nd Ser., Vol. 17, No. 1 (April 1970), pp. 100–04 (102f.) The tsunami is believed to have been triggered by a 7.0 earthquake in the north Aegean Sea. The associated tsunami may have saved the colony of Potidaea from an invasion by Persians from the Achaemenid Empire. Tectonic setting The Aegean Sea is a seismically active region with complex plate tectonics interaction both within and surrounding the Aegean Sea Plate. Seismicity in the Aegean Sea is due to active extension within the lithospheric plate. The Aegean Sea Plate is defined along several major plate boundaries including the North Anatolian Fault which runs through northern Turkey, where the Anatolian Plate slides past the Eurasian Plate along this right-lateral strike-slip fault. The southern margin is dominated by active convergence of the African Plate. It converges nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegean Sea
The Aegean Sea ; tr, Ege Denizi (Greek language, Greek: Αιγαίο Πέλαγος: "Egéo Pélagos", Turkish language, Turkish: "Ege Denizi" or "Adalar Denizi") is an elongated embayment of the Mediterranean Sea between Europe and Asia. It is located between the Balkans and Anatolia, and covers an area of some 215,000 square kilometres. In the north, the Aegean is connected to the Marmara Sea and the Black Sea by the straits of the Dardanelles and the Bosphorus. The Aegean Islands are located within the sea and some bound it on its southern periphery, including Crete and Rhodes. The sea reaches a maximum depth of 2,639m to the west of Karpathos. The Thracian Sea and the Sea of Crete are main subdivisions of the Aegean Sea. The Aegean Islands can be divided into several island groups, including the Dodecanese, the Cyclades, the Sporades, the Saronic Islands, Saronic islands and the North Aegean islands, North Aegean Islands, as well as Crete and its surrounding islands. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extensional Tectonics
Extensional tectonics is concerned with the structures formed by, and the tectonic processes associated with, the stretching of a planetary body's crust or lithosphere. Deformation styles The types of structure and the geometries formed depend on the amount of stretching involved. Stretching is generally measured using the parameter ''β'', known as the ''beta factor'', where : \beta = \frac \,, ''t''0 is the initial crustal thickness and ''t''1 is the final crustal thickness. It is also the equivalent of the strain parameter ''stretch''. Low beta factor In areas of relatively low crustal stretching, the dominant structures are high to moderate angle normal faults, with associated half grabens and tilted fault blocks. High beta factor In areas of high crustal stretching, individual extensional faults may become rotated to too low a dip to remain active and a new set of faults may be generated. Large displacements may juxtapose syntectonic sediments against metamorphic roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsunamis In Greece
A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations, landslides, glacier calvings, meteorite impacts and other disturbances) above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event. Tsunami waves do not resemble normal undersea currents or sea waves because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide. For this reason, it is often referred to as a tidal wave, although this usage is not favoured by the scientific community because it might give ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Greece
This list of earthquakes in Greece includes notable earthquakes that have affected Greece during recorded history. This list is currently incomplete, representing only a fraction of the possible events. Tectonic setting Greece is located at the complex boundary zone in the eastern Mediterranean between the African Plate and the Eurasian Plate. The northern part of Greece lies on the Eurasian Plate while the southern part lies on the Aegean Sea Plate. The Aegean Sea Plate is moving southwestward with respect to the Eurasian Plate at about 30 mm/yr while the African Plate is subducting northwards beneath the Aegean Sea Plate at a rate of about 40 mm/yr. The northern plate boundary is a relatively diffuse divergent boundary while the southern convergent boundary forms the Hellenic arc. These two plate boundaries give rise to two contrasting tectonic styles, extension on east–west trending fault zones with strike-slip tectonics on SW-NE trending fault zones throughout west ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tsunamis
This article lists notable tsunamis, which are sorted by the date and location that the tsunami occurred. Because of seismic and volcanic activity associated with tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in the Pacific Ocean, but are a worldwide natural phenomenon. They are possible wherever large bodies of water are found, including inland lakes, where they can be caused by landslides and glacier calving. Very small tsunamis, non-destructive and undetectable without specialized equipment, occur frequently as a result of minor earthquakes and other events. Around 1600 BC, a tsunami caused by the eruption of Thira devastated the Minoan civilization on Crete and related cultures in the Cyclades, as well as in areas on the Greek mainland facing the eruption, such as the Argolid. The oldest recorded tsunami occurred in 479 BC. It destroyed a Persian army that was attacking the town of Potidaea in Greece.Smid, T. C.: "'Tsunamis' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Historical Earthquakes
Historical earthquakes is a list of significant earthquakes known to have occurred prior to the beginning of the 20th century. As the events listed here occurred before routine Seismometer, instrumental recordings, they rely mainly on the analysis of written sources. There is often significant uncertainty in location and magnitude and sometimes date for each earthquake. The number of fatalities is also often highly uncertain, particularly for the older events. Pre-11th century 11th–18th centuries 19th century Source for all events with 'USGS' labelled as the source United States Geological Survey (USGS''Note: Magnitudes are generally estimations from intensity data. When no magnitude was available, the Mercalli intensity scale, maximum intensity, written as a Roman numeral from I to XII, is given.'' See also * :Articles on pre-1900 earthquakes * List of 20th-century earthquakes * List of 21st-century earthquakes * List of tsunamis * Lists of earthquakes * List of megath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In Greece
This list of earthquakes in Greece includes notable earthquakes that have affected Greece during recorded history. This list is currently incomplete, representing only a fraction of the possible events. Tectonic setting Greece is located at the complex boundary zone in the eastern Mediterranean between the African Plate and the Eurasian Plate. The northern part of Greece lies on the Eurasian Plate while the southern part lies on the Aegean Sea Plate. The Aegean Sea Plate is moving southwestward with respect to the Eurasian Plate at about 30 mm/yr while the African Plate is subducting northwards beneath the Aegean Sea Plate at a rate of about 40 mm/yr. The northern plate boundary is a relatively diffuse divergent boundary while the southern convergent boundary forms the Hellenic arc. These two plate boundaries give rise to two contrasting tectonic styles, extension on east–west trending fault zones with strike-slip tectonics on SW-NE trending fault zones throughout west ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicholas Ambraseys
Nicholas Neocles Ambraseys FICE FREng (Greek: Νικόλαος Αμβράζης του Νεοκλή, 19 January 1929 – 28 December 2012) was a Greek engineering seismologist. He was emeritus professor of engineering seismology and senior research fellow at Imperial College London. For many years Ambraseys was considered the leading figure and an authority in earthquake engineering and seismology in Europe. Curriculum Ambraseys studied rural and surveying engineering at the National Technical University of Athens ( Diploma in 1952) and then civil engineering at Imperial College, specialising in soil mechanics and engineering seismology. He worked with Professors Alec Skempton and Alan W. Bishop and obtained his PhD degree in 1958; his thesis title was "The seismic stability of earth dams". He joined the staff in 1958 as a lecturer and he was appointed a reader in engineering seismology in 1968 and full professor of engineering seismology in 1974. In 1968 he established t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toronean Gulf
The Toronean Gulf or Toroneos Gulf () and Toronaic Gulf (), also known as the Kassandra Gulf (), is a gulf of the Thracian Sea, part of the northern Aegean Sea, in Chalkidiki, Greece. It lies between the Kassandra peninsula in the west, and Sithonia in the east. History According to Herodotus, the gulf was historically known for its fish. The harbour of Torone, the only city on the gulf, was known as the "deaf" harbour due to the gulf's quietness and calmness. The ancient city of Olynthus Olynthus ( grc, Ὄλυνθος ''Olynthos'', named for the ὄλυνθος ''olunthos'', "the fruit of the wild fig tree") was an ancient city of Chalcidice, built mostly on two flat-topped hills 30–40m in height, in a fertile plain at the he ... was said to be at the head of the Toronean Gulf. References Gulfs of Greece Thracian Sea Landforms of Chalkidiki {{CMacedonia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poseidon
Poseidon (; grc-gre, Ποσειδῶν) was one of the Twelve Olympians in ancient Greek religion and myth, god of the sea, storms, earthquakes and horses.Burkert 1985pp. 136–139 In pre-Olympian Bronze Age Greece, he was venerated as a chief deity at Pylos and Thebes. He also had the cult title "earth shaker". In the myths of isolated Arcadia he is related with Demeter and Persephone and he was venerated as a horse, however, it seems that he was originally a god of the waters.Seneca quaest. Nat. VI 6 :Nilsson Vol I p.450 He is often regarded as the tamer or father of horses, and with a strike of his trident, he created springs which are related to the word horse.Nilsson Vol I p.450 His Roman equivalent is Neptune. Poseidon was the protector of seafarers, and of many Hellenic cities and colonies. Homer and Hesiod suggest that Poseidon became lord of the sea when, following the overthrow of his father Cronus, the world was divided by lot among Cronus' three sons; Zeus w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herodotus
Herodotus ( ; grc, , }; BC) was an ancient Greek historian and geographer from the Greek city of Halicarnassus, part of the Persian Empire (now Bodrum, Turkey) and a later citizen of Thurii in modern Calabria ( Italy). He is known for having written the '' Histories'' – a detailed account of the Greco-Persian Wars. Herodotus was the first writer to perform systematic investigation of historical events. He is referred to as " The Father of History", a title conferred on him by the ancient Roman orator Cicero. The ''Histories'' primarily cover the lives of prominent kings and famous battles such as Marathon, Thermopylae, Artemisium, Salamis, Plataea, and Mycale. His work deviates from the main topics to provide a cultural, ethnographical, geographical, and historiographical background that forms an essential part of the narrative and provides readers with a wellspring of additional information. Herodotus has been criticized for his inclusion of "legends and f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persian Empire
The Achaemenid Empire or Achaemenian Empire (; peo, wikt:𐎧𐏁𐏂𐎶, 𐎧𐏁𐏂, , ), also called the First Persian Empire, was an History of Iran#Classical antiquity, ancient Iranian empire founded by Cyrus the Great in 550 BC. Based in Western Asia, it was contemporarily the List of largest empires, largest empire in history, spanning a total of from the Balkans and ancient Egypt, Egypt in the west to Central Asia and the Indus River, Indus Valley in the east. Around the 7th century BC, the region of Persis in the southwestern portion of the Iranian plateau was settled by the Persians. From Persis, Cyrus rose and defeated the Medes, Median Empire as well as Lydia and the Neo-Babylonian Empire, marking the formal establishment of a new imperial polity under the Achaemenid dynasty. In the modern era, the Achaemenid Empire has been recognized for its imposition of a successful model of centralized, bureaucratic administration; its multicultural policy; building comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
