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464 BC Sparta Earthquake
The 464 BC Sparta earthquake occurred along the Sparta fault in the year 464 BC destroying much of what was Sparta and many other city-states in ancient Greece. Historical sources suggest that the death toll may have been as high as 20,000, although modern scholars suggest that this figure is likely an exaggeration. The earthquake gave Spartan helots an opportunity to revolt against their aristocratic rulers, and the Athenians were called to their aid. Their immediate dismissal upon arrival is said to have been a key event that lead up to the First Peloponnesian War. Tectonic setting Sparta was located on what is currently called the Hellenic arc which is predisposed to large seismic activity due to the convergence and subduction of the African Plate beneath the Aegean Sea Plate. The convergent and subduction of these plates are also seen in the geographical landscape in present-day Greece with large mountain ranges as well as many islands and the lands drop off into the Medit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Wave Magnitude
The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements of Rayleigh surface waves that travel along the uppermost layers of the Earth. This magnitude scale is related to the local magnitude scale proposed by Charles Francis Richter in 1935, with modifications from both Richter and Beno Gutenberg throughout the 1940s and 1950s. It is currently used in People's Republic of China as a national standard (GB 17740-1999) for categorising earthquakes. Recorded magnitudes of earthquakes through the mid 20th century, commonly attributed to Richter, could be either M_s or M_L. Definition The formula to calculate surface wave magnitude is: :M_s = \log_\left(\frac\right)_ + \sigma(\Delta)\,, where A is the maximum particle displacement in surface waves (vector sum of the two horizontal displacements) in μm, T is the corresponding period in s (usually 20 2 seconds), Δ is the epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
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] |
Corinthian Gulf
The Gulf of Corinth or the Corinthian Gulf ( el, Κορινθιακός Kόλπος, ''Korinthiakόs Kόlpos'', ) is a deep inlet of the Ionian Sea, separating the Peloponnese from western mainland Greece. It is bounded in the east by the Isthmus of Corinth which includes the shipping-designed Corinth Canal and in the west by the Strait of Rion which widens into the shorter Gulf of Patras (part of the Ionian Sea) and of which the narrowest point is crossed since 2004 by the Rio–Antirrio bridge. The gulf is bordered by the large administrative divisions (regional units): Aetolia-Acarnania and Phocis in the north, Boeotia in the northeast, Attica in the east, Corinthia in the southeast and south and Achaea in the southwest. The gulf is in tectonic movement comparable to movement in parts of Iceland and Turkey, growing by per year. In the Middle Ages, the gulf was known as the Gulf of Lepanto (the Italian form of Naupactus). Shipping routes between the Greek commercial port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naupactus
Nafpaktos ( el, Ναύπακτος) is a town and a former municipality in Aetolia-Acarnania, West Greece, situated on a bay on the north coast of the Gulf of Corinth, west of the mouth of the river Mornos. It is named for Naupaktos (, Latinized ''Naupactus''), an important Athenian naval station in the Peloponnesian war. As a strategically crucial possession controlling access to the Gulf of Corinth, Naupaktos changed hands many times during the Crusades and the Ottoman–Venetian Wars. It was under Venetian control in the 15th century, and came to be known by the Venetian form of its name, Lepanto. It fell to the Ottoman Empire in 1499 and was used as naval station by the Ottoman Navy in the 16th century, being the site of the decisive victory by the Holy League in the Battle of Lepanto in 1571. Except a brief period of Venetian control in 1687–1699, Lepanto remained under Ottoman control until Greek independence in 1829. The modern municipality was incorporated in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Peloponnesian War
The ''History of the Peloponnesian War'' is a historical account of the Peloponnesian War (431–404 BC), which was fought between the Peloponnesian League (led by Sparta) and the Delian League (led by Athens). It was written by Thucydides, an Athenian historian who also served as an Athenian general during the war. His account of the conflict is widely considered to be a classic and regarded as one of the earliest scholarly works of history. The ''History'' is divided into eight books. Analyses of the ''History'' generally occur in one of two camps. On the one hand, some scholars such as J. B. Bury view the work as an objective and scientific piece of history. The judgment of Bury reflects this traditional interpretation of the ''History'' as "severe in its detachment, written from a purely intellectual point of view, unencumbered with platitudes and moral judgments, cold and critical." On the other hand, in keeping with more recent interpretations that are associated with re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cimon
Cimon or Kimon ( grc-gre, Κίμων; – 450BC) was an Athenian ''strategos'' (general and admiral) and politician. He was the son of Miltiades, also an Athenian ''strategos''. Cimon rose to prominence for his bravery fighting in the naval Battle of Salamis (480 BC), during the Second Persian invasion of Greece. Cimon was then elected as one of the ten ''strategoi'', to continue the Persian Wars against the Achaemenid Empire. He played a leading role in the formation of the Delian League against Persia in 478 BC, becoming its commander in the early Wars of the Delian League, including at the Siege of Eion (476 BC). In 466 BC, Cimon led a force to Asia Minor, where he destroyed a Persian fleet and army at the Battle of the Eurymedon river. From 465 to 463 BC he suppressed the Thasian rebellion, in which the island of Thasos attempted to leave the Delian League. This event marked the transformation of the Delian League into the Athenian Empire. Cimon to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoplites
Hoplites ( ) ( grc, ὁπλίτης : hoplítēs) were citizen-soldiers of Ancient Greek city-states who were primarily armed with spears and shields. Hoplite soldiers used the phalanx formation to be effective in war with fewer soldiers. The formation discouraged the soldiers from acting alone, for this would compromise the formation and minimize its strengths. The hoplites were primarily represented by free citizens – propertied farmers and artisans – who were able to afford a linen armour or a bronze armour suit and weapons (estimated at a third to a half of its able-bodied adult male population). Most hoplites were not professional soldiers and often lacked sufficient military training. Some states maintained a small elite professional unit, known as the '' epilektoi'' ("chosen") since they were picked from the regular citizen infantry. These existed at times in Athens, Argos, Thebes, and Syracuse, among other places. Hoplite soldiers made up the bulk of anci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Messenia (ancient Region)
Messenia or Messinia ( el, Μεσσηνία) was an ancient district of the southwestern Peloponnese, more or less overlapping the modern Messenia region of Greece. To the north it had a border with Elis along the Neda river. From there the border with Arcadia ran along the tops of Mount Elaeum and Mount Nomia and then through foothills of Taygetus. The eastern border with Laconia went along the Taygetus ridge up to the Koskaraka river, and then along that river to the sea, near the city of Abia. Ancient Messenia descended continuously without change of name and with little change of territory to the modern Regional Unit of Greece of the same name. History Bronze age The earliest inhabitants of Messenia were thought by the Greeks of the Classical period to have been 'Pelasgians', as in other regions of Greece. Supposedly, the Hellenic tribes had then arrived in Greece, and Messenia was settled by Aeolian Greeks. The Mycenaean city of Pylos has been identified with the modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Attica
Attica ( el, Αττική, Ancient Greek ''Attikḗ'' or , or ), or the Attic Peninsula, is a historical region that encompasses the city of Athens, the capital of Greece and its countryside. It is a peninsula projecting into the Aegean Sea, bordering on Boeotia to the north and Megaris to the west. The southern tip of the peninsula, known as Laurion, was an important mining region. The history of Attica is tightly linked with that of Athens, and specifically the Golden Age of Athens during the classical period. Ancient Attica ( Athens city-state) was divided into demoi or municipalities from the reform of Cleisthenes in 508/7 BC, grouped into three zones: urban (''astu'') in the region of Athens main city and Piraeus (port of Athens), coastal (''paralia'') along the coastline and inland (''mesogeia'') in the interior. The modern administrative region of Attica is more extensive than the historical region and includes Megaris as part of the regional unit West Attica, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peloponnesian War
The Peloponnesian War (431–404 BC) was an ancient Greek war fought between Athens and Sparta and their respective allies for the hegemony of the Greek world. The war remained undecided for a long time until the decisive intervention of the Persian Empire in support of Sparta. Led by Lysander, the Spartan fleet built with Persian subsidies finally defeated Athens and started a period of Spartan hegemony over Greece. Historians have traditionally divided the war into three phases. The first phase (431–421 BC) was named the Ten Years War, or the Archidamian War, after the Spartan king Archidamus II, who launched several invasions of Attica with the full hoplite army of the Peloponnesian League, the alliance network dominated by Sparta. However, the Long Walls of Athens rendered this strategy ineffective, while the superior navy of the Delian League (Athens' alliance) raided the Peloponnesian coast to trigger rebellions within Sparta. The precarious Peace of Nicias was si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archidamus II
Archidamus II ( grc-gre, Ἀρχίδαμος ; died 427/6 BC) was a king of Sparta who reigned from approximately 469/8 BC to 427/6 BC. His father was Zeuxidamus (called Cyniscos by many Spartans). Zeuxidamus married and had a son, Archidamus. However, Zeuxidamus died before his father, Leotychidas. After the death of his son and heir, Leotychidas married Eurydame, the sister of Menius and daughter of Diactorides. While they had no male offspring, they did have a daughter, Lampito, whom Leotychidas gave in marriage to his grandson Archidamus. They had a son Agis II. Archidamus' later second marriage was to Eupoleia. The Ephors objected to this union, arguing that due to Eupolia's short stature, “She will bear us kinglets instead of kings”. He married her nonetheless and was for that fined by the Ephors. To them were born a son, Agesilaus II, and a daughter, Cynisca. Rule Archidamus ascended the Spartan throne after his grandfather, Leotychidas, was banished a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Wave Magnitude
The surface wave magnitude (M_s) scale is one of the magnitude scales used in seismology to describe the size of an earthquake. It is based on measurements of Rayleigh surface waves that travel along the uppermost layers of the Earth. This magnitude scale is related to the local magnitude scale proposed by Charles Francis Richter in 1935, with modifications from both Richter and Beno Gutenberg throughout the 1940s and 1950s. It is currently used in People's Republic of China as a national standard (GB 17740-1999) for categorising earthquakes. Recorded magnitudes of earthquakes through the mid 20th century, commonly attributed to Richter, could be either M_s or M_L. Definition The formula to calculate surface wave magnitude is: :M_s = \log_\left(\frac\right)_ + \sigma(\Delta)\,, where A is the maximum particle displacement in surface waves (vector sum of the two horizontal displacements) in μm, T is the corresponding period in s (usually 20 2 seconds), Δ is the epi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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