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991 Damascus Earthquake
The 991 Damascus earthquake took place in the city of Damascus on 5 April, 991 (17th Muharram, Hijri year 381).Antonopoulos, 1980 According to historian George Elmacin (13th century), the earthquake caused the fall of 1000 houses in Damascus itself, and many people were trapped in their ruins and died. The village of Beglabec was reportedly engulfed due to the earthquake. According to Elmacin, aftershocks continued until 3 May, 991 (14th Safar, Hijri year 381). The geophysicist August Heinrich Sieberg (20th century) estimated that this earthquake caused a "seismic sea wave" (tsunami) which flooded the coasts of the region In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and t ... of Syria. Sieberg did not name a primary source for his estimation. The historians Pierre Vattier(17th ce ... [...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] |
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 mig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Syria
An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from those that are so weak that they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time period. The seismicity at a particular location in the Earth is the average rate of seismic energy release per unit volume. The word ''tremor'' is also used for non-earthquake seismic rumbling. At the Earth's surface, earthquakes manifest themselves by shaking and displacing or disrupting the ground. When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th Century In The Fatimid Caliphate
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syria (region)
Syria ( Hieroglyphic Luwian: 𔒂𔒠 ''Sura/i''; gr, Συρία) or Sham ( ar, ٱلشَّام, ash-Shām) is the name of a historical region located east of the Mediterranean Sea in Western Asia, broadly synonymous with the Levant. Other synonyms are Greater Syria or Syria-Palestine. The region boundaries have changed throughout history. In modern times, the term "Syria" alone is used to refer to the Arab Republic of Syria. The term is originally derived from Assyria, an ancient civilization centered in northern Mesopotamia, modern-day Iraq. During the Hellenistic period, the term Syria was applied to the entire Levant as Coele-Syria. Under Roman rule, the term was used to refer to the province of Syria, later divided into Syria Phoenicia and Coele Syria, and to the province of Syria Palaestina. Under the Byzantines, the provinces of Syria Prima and Syria Secunda emerged out of Coele Syria. After the Muslim conquest of the Levant, the term was superseded by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Region
In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and the environment (environmental geography). Geographic regions and sub-regions are mostly described by their imprecisely defined, and sometimes transitory boundaries, except in human geography, where Jurisdiction (area), jurisdiction areas such as national borders are defined in law. Apart from the Earth, global continental regions, there are also hydrosphere, hydrospheric and atmosphere, atmospheric regions that cover the oceans, and discrete climates above the land mass, land and water mass, water masses of the planet. The land and water global regions are divided into subregions geographically bounded by large geological features that influence large-scale ecologies, such as plains and features. As a way of describing spatial areas, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise. In particular climate change's increased rainfall and extreme weather events increases the severity of other causes for flooding, resulting in more intense floods and increased flood risk. Flooding may occur as an overflow of water from water bodies, such as a river, lake, or ocean, in which the water overtops or breaks levees, resulting i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Heinrich Sieberg
August Heinrich Sieberg (born 23 December 1875 in Aachen; died 18 November 1945 in Jena) was a German geophysicist. He researched mainly in the field of seismology and developed a seismic intensity scales as well as a tsunami intensity scale. Sieberg studied natural sciences at TH Aachen and the universities University of Strasbourg, Straßburg, Albert-Ludwigs-Universität Freiburg, Freiburg and Friedrich-Schiller-Universität Jena, Jena; he also studied architecture. Since 1895 he was assistant at the ''Meteorological Observatory Aachen'', between 1904 and 1914 at the ''Imperial Main Station for Earthquake Research'' (today ''Ecole et Observatoire des Sciences de la Terre'') in Strasbourg, founded in 1899. From 1910 he was a part-time employee of the Strasbourg central office of the International Seismological Association (ISA), today's International Association of Seismology and Physics of the Earth’s Interior. After the First World War Strasbourg became French and Sieberg mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muharram
Muḥarram ( ar, ٱلْمُحَرَّم) (fully known as Muharram ul Haram) is the first month of the Islamic calendar. It is one of the four sacred months of the year when warfare is forbidden. It is held to be the second holiest month after Ramadan. The tenth day of Muharram is known as Ashura. Better known as part of the Mourning of Muharram, Shi'a Muslims mourn the tragedy of Ḥusayn ibn ʿAlī's family. Shiites mourn the martyrdom of Ḥusayn by abstaining from joyous events. Instead, Shia Muslims hold many events to offer condolences to Imam Husayn and to honor the martyrs by prayer, reading supplications, and holding charity events. Shiʿi Muslims eat as little as possible on the Ashura; however, this is not seen as fasting. Alevis fast ten or twelve days, each day for one of the Twelve Imams of Shiʿa Islam, to commemorate and mourn the Imams, as if a very close relative has died. Some (excluding children, elderly or sick) do not eat or drink, avoid entertainment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geophysicist
Geophysics () is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term ''geophysics'' sometimes refers only to solid earth applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations and pure scientists use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial physics; and analogous problems associated with the Moon and other planets. Gutenberg, B., 1929, Lehrbuch der Geophysik. Leipzig. Berlin (Gebruder Borntraeger). Runcorn, S.K, (editor-in-chief), 1967, Internat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safar
Ṣafar ( ar, صَفَر) also spelt as Safer in Turkish, is the second month of the lunar Islamic calendar. The Arabic word ''ṣafar'' means "travel, migration", corresponding to the pre-Islamic Arabian time period when muslims flee the oppression of Quraish in Mecca and travelled (most of the them barefooted)to Madina. Most of the Islamic months were named according to ancient Arabian weather conditions; however, since the calendar is lunar, the months shift by about 11 days every solar year, meaning that these conditions do not necessarily correspond to the name of the month. Timing The Islamic calendar is a purely lunar calendar, and its months begin when the first crescent of a new moon is sighted. Since the Islamic lunar year is 11 to 12 days shorter than the solar year, Safar migrates throughout the seasons. The estimated start and end dates for Safar are as follows (based on the Umm al-Qura calendar of Saudi Arabia): Islamic events * 01 Safar 61 AH, prisoners of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
