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1981 Gulf Of Corinth Earthquakes
In early 1981 the eastern Gulf of Corinth, Greece was struck by three earthquakes with a magnitude greater than 6 over a period of 11 days. The earthquake sequence caused widespread damage in the Corinth–Athens area, destroying nearly 8,000 houses and causing 20–22 deaths. Tectonic setting The Gulf of Corinth is an area of active extensional tectonics. The underlying cause of this extension has been attributed to rollback of the African Plate as it subducts northwards beneath the Aegean Plate. Other possible mechanisms include gravitational collapse of crust overthickened during the Paleogene to early Neogene or the effects of the continuing propagation of the North Anatolian Fault towards the southwest. The rift that formed the Gulf of Corinth is bounded by large normal faults that vary in their polarity ( dip direction) along its length. The eastern end of the rift, which forms the Alkyonides Gulf, is dominated by north-dipping faults, including the Perachora, Straya, Ski ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normal Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coordinated Universal Time
Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about one second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT). The coordination of time and frequency transmissions around the world began on 1 January 1960. UTC was first officially adopted as CCIR Recommendation 374, ''Standard-Frequency and Time-Signal Emissions'', in 1963, but the official abbreviation of UTC and the official English name of Coordinated Universal Time (along with the French equivalent) were not adopted until 1967. The system has been adjusted several times, including a brief period during which the time-coordination radio signals broadcast both UTC and "Stepped Atomic Time (SAT)" before a new UTC was adopted in 1970 and implemented in 1972. This change also a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Liquefaction
Soil liquefaction occurs when a cohesionless saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress such as shaking during an earthquake or other sudden change in stress condition, in which material that is ordinarily a solid behaves like a liquid. In soil mechanics, the term "liquefied" was first used by Allen Hazen in reference to the 1918 failure of the Calaveras Dam in California. He described the mechanism of flow liquefaction of the embankment dam as: The phenomenon is most often observed in saturated, loose (low density or uncompacted), sandy soils. This is because a loose sand has a tendency to compress when a load is applied. Dense sands, by contrast, tend to expand in volume or 'dilate'. If the soil is saturated by water, a condition that often exists when the soil is below the water table or sea level, then water fills the gaps between soil grains ('pore spaces'). In response to soil compressing, the po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsunami
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] |
Corinthia
Corinthia ( el, Κορινθία ''Korinthía'') is one of the regional units of Greece. It is part of the region of Peloponnese. It is situated around the city of Corinth, in the north-eastern part of the Peloponnese peninsula. Geography Corinthia borders on Achaea to the west and southwest, the Gulf of Corinth and Attica to the north, the Saronic Gulf to the east, Argolis to the south and Arcadia to the southwest. The Corinth Canal, carrying ship traffic between the Ionian and the Aegean seas, is about east of Corinth, cutting through the Isthmus of Corinth. Corinthia is increasingly seen as part of the wider metropolitan area of Athens, with municipalities, such as Agioi Theodoroi in the easternmost part of the regional unit, being considered suburbs of Athens. The area around Corinth and the western Saronic including the southeastern part are made up of fault lines including the Corinth Fault, the Poseidon Fault and a fault running from Perahcora to Agioi Theodoroi. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beotia
Boeotia ( ), sometimes Latinized as Boiotia or Beotia ( el, Βοιωτία; modern: ; ancient: ), formerly known as Cadmeis, is one of the regional units of Greece. It is part of the region of Central Greece. Its capital is Livadeia, and its largest city is Thebes. Boeotia was also a region of ancient Greece, from before the 6th century BC. Geography Boeotia lies to the north of the eastern part of the Gulf of Corinth. It also has a short coastline on the Gulf of Euboea. It bordered on Megaris (now West Attica) in the south, Attica in the southeast, Euboea in the northeast, Opuntian Locris (now part of Phthiotis) in the north and Phocis in the west. The main mountain ranges of Boeotia are Mount Parnassus in the west, Mount Helicon in the southwest, Cithaeron in the south and Parnitha in the east. Its longest river, the Cephissus, flows in the central part, where most of the low-lying areas of Boeotia are found. Lake Copais was a large lake in the center of Boeotia. It was d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attica (region)
Attica ( el, Περιφέρεια Αττικής, translit=Periféria Attikís, ) is an administrative region of Greece, that encompasses the entire metropolitan area of Athens, the country's capital and largest city. The region is coextensive with the former Attica Prefecture of Central Greece. It covers a greater area than the historical region of Attica. Overview Located on the eastern edge of Central Greece, Attica covers about 3,808 square kilometers. In addition to Athens, it contains within its area the cities of Elefsina, Megara, Laurium, and Marathon, as well as a small part of the Peloponnese peninsula and the islands of Salamis, Aegina, Angistri, Poros, Hydra, Spetses, Kythira, and Antikythera. About 3,800,000 people live in the region, of whom more than 95% are inhabitants of the Athens metropolitan area. In 2019, Attica had the HDI of 0.912, the highest in Greece. Administration The region was established in the 1987 administrative reform, and until 2010 it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Units Of Greece
The 74 regional units of Greece ( el, περιφερειακές ενότητες, ; sing. , ) are the country's Seventy-four second-level administrative units. They are divisions of the country's 13 regions, and are further divided into municipalities. They were introduced as part of the Kallikratis administrative reform on 1 January 2011 and are comparable in area and, in the mainland, coterminous with the 'pre-Kallikratis' prefectures of Greece During the first administrative division of independent Greece in 1833–1836 and again from 1845 until their abolition with the Kallikratis reform in 2010, the prefectures ( el, νομοί, sing. νομός, translit=nomoi, sing. nomós) were .... List References {{Articles on second-level administrative divisions of European countries Regional units Greece transport-related lists Subdivisions of Greece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thebes, Greece
Thebes (; ell, Θήβα, ''Thíva'' ; grc, Θῆβαι, ''Thêbai'' .) is a city in Boeotia, Central Greece. It played an important role in Greek myths, as the site of the stories of Cadmus, Oedipus, Dionysus, Heracles and others. Archaeological excavations in and around Thebes have revealed a Mycenaean settlement and clay tablets written in the Linear B script, indicating the importance of the site in the Bronze Age. Thebes was the largest city of the ancient region of Boeotia and was the leader of the Boeotian confederacy. It was a major rival of ancient Athens, and sided with the Persians during the 480 BC invasion under Xerxes I. Theban forces under the command of Epaminondas ended Spartan hegemony at the Battle of Leuctra in 371 BC, with the Sacred Band of Thebes, an elite military unit of male lovers celebrated as instrumental there. Macedonia would rise in power at the Battle of Chaeronea in 338 BC, bringing decisive victory to Philip II over an alliance of Thebes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plataies
Plataies ( el, Πλαταιές), anciently Kokhla, is a village and a former municipality in Boeotia, Greece. Since the 2011 local government reform it is part of the municipality Thebes, of which it is a municipal unit. The municipal unit has an area of 172.533 km2, the community 37.321 km2. Population 4,908 (2011). The seat of the former municipality was in Kaparelli. The village is next to the ruins of the ancient city of Plataea and near the site of the Battle of Plataea. See also * Plataea * Battle of Plataea The Battle of Plataea was the final land battle during the second Persian invasion of Greece. It took place in 479 BC near the city of Plataea in Boeotia, and was fought between an alliance of the Greek city-states (including Sparta, Athens, C ... References Populated places in Boeotia {{CentralGreece-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megara
Megara (; el, Μέγαρα, ) is a historic town and a municipality in West Attica, Greece. It lies in the northern section of the Isthmus of Corinth opposite the island of Salamis Island, Salamis, which belonged to Megara in archaic times, before being taken by Athens. Megara was one of the four districts of Attica, embodied in the four mythic sons of King Pandion II, of whom Nisos was the ruler of Megara. Megara was also a trade port, its people using their ships and wealth as a way to gain leverage on armies of neighboring poleis. Megara specialized in the exportation of wool and other animal products including livestock such as horses. It possessed two harbors, Pagae to the west on the Corinthian Gulf, and Nisaea to the east on the Saronic Gulf of the Aegean Sea. It is part of Athens metropolitan area. Early history According to Pausanias (geographer), Pausanias, the Megarians said that their town owed its origin to Car (Greek mythology), Car, the son of Phoroneus, who bui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xylokastro
Xylokastro ( el, Ξυλόκαστρο) is a seaside town or village and a former municipality in Corinthia in the Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Xylokastro-Evrostina, of which it is a unit or component. The municipal unit has an area of 310.252 km2. In 2011 its population was 5,715 for the town and 13,277 for the municipal unit. Geographic features include a long 2 km beach and semi-arid forest on varied terrain, scattered with early churches and evidence of early settlements and religious sites. It has narrowly separated upper and lower coastal roads and forms a medium-sized touristic village on the Gulf of Corinth. Subdivisions The municipal unit Xylokastro is subdivided into the following communities (2011 population and constituent villages in brackets): * Ano Trikala (104, Ano Trikala, Zireia) * Dendro (144) * Geliniatika (431, Geliniatika, Spartinaaika) * Kamari (903, Kamari, Kariotika) * Karya (597, K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
