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Galilee Earthquake Of 1837
The Galilee earthquake of 1837, often called the Safed earthquake, shook the Galilee on January 1 and is one of a number of moderate to large events that have occurred along the Dead Sea Transform (DST) fault system that marks the boundary of two tectonic plates; the African Plate on the west and the Arabian Plate on the east. Intensity assessments for the event were VIII (''Damaging'') on the Medvedev–Sponheuer–Karnik scale and VIII (''Heavily damaging'') on the European Macroseismic Scale. A 1977 assessment of the event that was published in the ''Bulletin of the Seismological Society of America'' had the epicenter just north of the city of Safed and the magnitude of 6.25–6.5, but in 1997 seismologist Nicholas Ambraseys argued that the event may have been more substantial. The event was well-documented by the nineteenth-century missionary, archaeologist, and author William McClure Thomson. The region in which the earthquake occurred was formally part of the Ottoman Emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richter Magnitude
The Richter scale —also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale—is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale". This was later revised and renamed the local magnitude scale, denoted as ML or . Because of various shortcomings of the original scale, most seismological authorities now use other similar scales such as the moment magnitude scale () to report earthquake magnitudes, but much of the news media still erroneously refers to these as "Richter" magnitudes. All magnitude scales retain the logarithmic character of the original and are scaled to have roughly comparable numeric values (typically in the middle of the scale). Due to the variance in earthquakes, it is essential to understand the Richter scale uses logarithms simply to make the measurements manageable (i.e., a magnitude 3 quake factors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egyptian–Ottoman War (1831–1833)
The First Egyptian–Ottoman War or First Syrian War (1831–1833) was a military conflict between the Ottoman Empire and Egypt brought about by Muhammad Ali Pasha's demand to the Sublime Porte for control of Greater Syria, as reward for aiding the Sultan during the Greek War of Independence. As a result, Egyptian forces temporarily gained control of Syria, advancing as far north as Kütahya. Background Muhammad Ali Pasha of Egypt is recorded as planning to extend his rule to the Ottoman Empire's Syrian provinces as early as 1812, secretly telling the British consul of his designs on the territory that year.E.R. Toledano. (2012). "Muhammad Ali Pasha." ''Encyclopedia of Islam, Second Edition''. This desire was left on hold, however, as he consolidated his rule over Egypt, modernizing its government administration, public services, and armed forces, and suppressing various rebellions, including Mamluk and Wahhabi uprisings—on behalf of Sultan Mahmud II. In 1825, the Sult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramla
Ramla or Ramle ( he, רַמְלָה, ''Ramlā''; ar, الرملة, ''ar-Ramleh'') is a city in the Central District of Israel. Today, Ramle is one of Israel's mixed cities, with both a significant Jewish and Arab populations. The city was founded in the early 8th century CE by the Umayyad prince Sulayman ibn Abd al-Malik as the capital of Jund Filastin, the district he governed in Bilad al-Sham before becoming caliph in 715. The city's strategic and economic value derived from its location at the intersection of the ''Via Maris'', connecting Cairo with Damascus, and the road connecting the Mediterranean port of Jaffa with Jerusalem. It rapidly overshadowed the adjacent city of Lydda, whose inhabitants were relocated to the new city. Not long after its establishment, Ramla developed as the commercial centre of Palestine, serving as a hub for pottery, dyeing, weaving, and olive oil, and as the home of numerous Muslim scholars. Its prosperity was lauded by geographers in the 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damascus
)), is an adjective which means "spacious". , motto = , image_flag = Flag of Damascus.svg , image_seal = Emblem of Damascus.svg , seal_type = Seal , map_caption = , pushpin_map = Syria#Mediterranean east#Arab world#Asia , pushpin_label_position = right , pushpin_mapsize = , pushpin_map_caption = Location of Damascus within Syria , pushpin_relief = 1 , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = Governorate , subdivision_name1 = Damascus Governorate, Capital City , government_footnotes = , government_type = , leader_title = Governor , leader_name = Mohammad Tariq Kreishati , parts_type = Municipalities , parts = 16 , established_title = , established_date ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isoseismal Map
In seismology, an isoseismal map is used to show lines of equally felt seismic intensity, generally measured on the Modified Mercalli scale. Such maps help to identify earthquake epicenters, particularly where no instrumental records exist, such as for historical earthquakes. They also contain important information on ground conditions at particular locations, the underlying geology, radiation pattern of the seismic waves, and the response of different types of buildings. They form an important part of the macroseismic approach, i.e. that part of seismology dealing with noninstrumental data. The shape and size of the isoseismal regions can be used to help determine the magnitude, focal depth, and focal mechanism of an earthquake. History The first known isoseismal map was produced for the 1810 earthquake in Mór in Hungary, and published by Kitaibel and Tomtsányi in 1814. The first, six-level intensity scale was proposed by Egen in 1828 for an earthquake in Rhineland. Robert M ... [...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] |
Seismometer
A seismometer is an instrument that responds to ground noises and shaking such as caused by earthquakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph. The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed digitally—is a seismogram. Such data is used to locate and characterize earthquakes, and to study the Earth's internal structure. Basic principles A simple seismometer, sensitive to up-down motions of the Earth, is like a weight hanging from a spring, both suspended from a frame that moves along with any motion detected. The relative motion between the weight (called the mass) and the frame provides a measurement of the vertical ground motion. A rotating drum is attached to the frame and a pen is attached to the weight, thus recording any ground motion in a seismogram. Any movement from the ground moves the frame. The mass tends not to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near East Earthquakes Of 1759
The Near East earthquakes of 1759 were a series of devastating earthquakes that shook a large portion of the Levant in October and November of that year. This geographical crossroads in the Eastern Mediterranean were at the time under the rule of the Ottoman Empire (now includes portions of Syria, Lebanon, Turkey, Israel and Palestine). The ruins of Baalbek, a settlement in the Beqaa Valley of Lebanon east of the Litani River, were badly damaged. These 1759 events, along with the earlier 1202 Syria earthquake, are likely the strongest historical earthquakes in the region. Tectonic setting The Dead Sea Transform is a long transform fault that runs from the northern end of the Red Sea along the Jordan Rift Valley to the Taurus Mountains complex in southern Turkey. The left-lateral fault zone marks the boundary of the Arabian Plate and the Sinai-Levantine block and has produced pull-apart basins that form the Dead Sea and the Sea of Galilee. The Levant fault system consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1202 Syria Earthquake
The 1202 Syria earthquake struck at about dawn on 20 May 1202 (598 AH) with an epicenter in southwestern Syria. Up to 1,100,000 deaths have been associated with this earthquake, although other estimates are much smaller. It was felt over a very wide area, from Sicily to Mesopotamia and Anatolia to upper Egypt, mostly affecting the Ayyubid Sultanate and the Kingdom of Jerusalem. The cities of Tyre, Acre and Nablus were heavily damaged. A magnitude of 7.6 has been estimated with damage up to XI on the Mercalli intensity scale. Records of the earthquake A large earthquake or series of earthquakes is described in many written sources during the period 1201–1202 (597–598 AH). It is unclear as to whether they refer to a single mainshock with several large aftershocks or more than one unrelated earthquake. Given the rarity of such large events in this area it has been considered more likely that the reports all refer to the same mainshock. Other workers have recognised two separa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jordan Rift Valley
The Jordan Rift Valley, also Jordan Valley ''Bīrʿāt haYardēn'', ar, الغور Al-Ghor or Al-Ghawr),, date=November 2022 also called the Syro-African Depression, is an elongated depression located in modern-day Israel, and Jordan. This geographic region includes the entire length of the Jordan River – from its sources, through the Hula Valley, the Korazim block, the Sea of Galilee, the (Lower) Jordan Valley, all the way to the Dead Sea, the lowest land elevation on Earth – and then continues through the Arabah depression, the Gulf of Aqaba whose shorelines it incorporates, until finally reaching the Red Sea proper at the Straits of Tiran. History and physical features The Jordan Rift Valley was formed many millions of years ago in the Miocene epoch (23.8 – 5.3 Myr ago) when the Arabian Plate moved northward and then eastward away from Africa. One million years later, the land between the Mediterranean and the Jordan Rift Valley rose so that the sea water sto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meizoseismal Area
The meizoseismal area in an earthquake is the area of maximum damage. For example, in the Charleston, South Carolina, earthquake of 1886, the meizoseismal area was an area about twenty by thirty miles stretching northeast between Charleston and Jedburg and incorporating Summerville. The estimated epicenter was near Middleton Place Middleton Place is a plantation in Dorchester County, along the banks of the Ashley River west of the Ashley and about northwest of downtown Charleston, in the U.S. state of South Carolina. Built in several phases during the 18th and 19th cent .... References Seismology {{seismology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modified Mercalli Intensity
The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the effects of an earthquake at a given location, distinguished from the earthquake's inherent force or strength as measured by seismic magnitude scales (such as the "" magnitude usually reported for an earthquake). While shaking is caused by the seismic energy released by an earthquake, earthquakes differ in how much of their energy is radiated as seismic waves. Deeper earthquakes also have less interaction with the surface, and their energy is spread out across a larger volume. Shaking intensity is localized, generally diminishing with distance from the earthquake's epicenter, but can be amplified in sedimentary basins and certain kinds of unconsolidated soils. Intensity scales empirically categorize the intensity of shaking based on the effect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
