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1883 Casamicciola Earthquake
The 1883 Casamicciola earthquake, also known as the Ischia earthquake occurred on 28 July at 20:25 local time (Central European Time) on the island of Ischia in the Gulf of Naples in Italy. Although the earthquake had an estimated moment magnitude () of 4.2 to 5.5, considered moderate in size, it caused intense ground shaking that was assigned XI (''Extreme'') on the Modified Mercalli intensity scale. Of the 26,000 inhabitants in the town of Casamicciola, at least 2,313–3,100 people lost their lives. The city also suffered great property losses, with 80% of all homes destroyed. This earthquake was exceptionally destructive for its magnitude mainly due to its shallow focal depth. Tectonic setting Ischia island is situated in the circular caldera which forms the Phlegraean Fields of volcanoes. The volcanic field itself is part of the greater Campanian volcanic arc. The island's highest point, Monte Epomeo, is not a volcanic cone. Instead, it is a geological horst, a block of vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central European Time
Central European Time (CET) is a standard time which is 1 hour ahead of Coordinated Universal Time (UTC). The time offset from UTC can be written as UTC+01:00. It is used in most parts of Europe and in a few North African countries. CET is also known as Middle European Time (MET, German: MEZ) and by colloquial names such as Amsterdam Time, Berlin Time, Brussels Time, Madrid Time, Paris Time, Rome Time, Warsaw Time or even Romance Standard Time (RST). The 15th meridian east is the central axis for UTC+01:00 in the world system of time zones. As of 2011, all member states of the European Union observe summer time (daylight saving time), from the last Sunday in March to the last Sunday in October. States within the CET area switch to Central European Summer Time (CEST, UTC+02:00) for the summer. In Africa, UTC+01:00 is called West Africa Time (WAT), where it is used by several countries, year round. Algeria, Morocco, and Tunisia also refer to it as ''Central E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Cone
Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption. Types of volcanic cones include stratocones, spatter cones, tuff cones, and cinder cones. Stratocone Stratocones are large cone-shaped volcanoes made up of lava flows, explosively erupted pyroclastic rocks, and igneous intrusives that are typically centered around a cylindrical vent. Unlike shield volcanoes, they are characterized by a steep profile and periodic, often alternating, explosive eruptions and effusive eruptions. Some have collapsed craters called calderas. The central core of a stratocone is commonly dominated by a central core of intrusive rocks that range from around to over several kilometers in diameter. This central core is surrounded by multiple generatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1883 In Italy
Events January–March * January 4 – ''Life'' magazine is founded in Los Angeles, California, United States. * January 10 – A fire at the Newhall Hotel in Milwaukee, Wisconsin, United States, kills 73 people. * January 16 – The Pendleton Civil Service Reform Act, establishing the United States civil service, is passed. * January 19 – The first electric lighting system employing overhead wires begins service in Roselle, New Jersey, United States, installed by Thomas Edison. * February – ''The Adventures of Pinocchio'' by Carlo Collodi is first published complete in book form, in Italy. * February 15 – Tokyo Electrical Lightning Grid, predecessor of Tokyo Electrical Power (TEPCO), one of the largest electrical grids in Asia and the world, is founded in Japan. * February 16 – The ''Ladies' Home Journal'' is published for the first time, in the United States. * February 23 – Alabama becomes the first U.S. state to en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1880s Earthquakes
Year 188 (CLXXXVIII) was a leap year starting on Monday of the Julian calendar. At the time, it was known in the Roman Empire as the Year of the Consulship of Fuscianus and Silanus (or, less frequently, year 941 ''Ab urbe condita''). The denomination 188 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Publius Helvius Pertinax becomes pro-consul of Africa from 188 to 189. Japan * Queen Himiko (or Shingi Waō) begins her reign in Japan (until 248). Births * April 4 – Caracalla (or Antoninus), Roman emperor (d. 217) * Lu Ji (or Gongji), Chinese official and politician (d. 219) * Sun Shao, Chinese general of the Eastern Wu state (d. 241) Deaths * March 17 – Julian, pope and patriarch of Alexandria * Fa Zhen (or Gaoqing), Chinese scholar (b. AD 100) * Lucius Antistius Burrus, Roman politician (executed) * Ma Xiang, Chinese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earthquakes In Italy
This is a list of earthquakes in Italy that had epicentres in Italy, or significantly affected the country. The highest seismicity hazard in Italy was concentrated in the central-southern part of the peninsula, along the Apennine ridge, in Calabria and Sicily and in some northern areas, like Friuli, part of Veneto and western Liguria. Geology Italy lies on the southern extent of the Eurasian Plate, which is surrounded by the Aegean Sea Plate, the Adriatic Plate, and the Anatolian Plate. The Apennine Mountains contain numerous faults that run along the entire Italian peninsula and form the majority of the destructive boundary between the Eurasian and the Adriatic plates, thus causing Italy to have high amounts of tectonic activity. In addition, Sicily and Calabria are located near the boundary where the African plate is subducting below the Eurasian plate, which was responsible for forming the stratovolcano known as Mount Etna. List of earthquakes See also * Geology of Ita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epicenter
The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental period of earthquake observation, the epicenter was thought to be the location where the greatest damage occurred, but the subsurface fault rupture may be long and spread surface damage across the entire rupture zone. As an example, in the magnitude 7.9 Denali earthquake of 2002 in Alaska, the epicenter was at the western end of the rupture, but the greatest damage was about away at the eastern end. Focal depths of earthquakes occurring in continental crust mostly range from . Continental earthquakes below are rare whereas in subduction zone earthquakes can originate at depths deeper than . Epicentral distance During an earthquake, seismic waves propagate in all directions from the hypocenter. Seismic shadowing occurs on the opposite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2017 Ischia Earthquake
The 2017 Ischia earthquake occurred in the island of Ischia, Campania, in southern Italy. The main shock occurred at 20:57 CEST (18:57 UTC) on 21 August 2017, and was rated 3.9 or 4.2 on the moment magnitude scale. Despite the moderate magnitude, several buildings and a church collapsed. One woman died in Casamicciola Terme after being hit by rubble that fell from a church. Another woman died when her house collapsed. Damage and debates The collapse of several buildings and the death of two women created much controversy and debate in Italy, because many geologists stated that with a moderate magnitude quake, modern buildings should not collapse. Moreover, Ischia is a zone with a high number of irregular buildings, and many critics considered the poor construction materials as the main cause for the death of the two women and for the damage. The sharp increase of the population between 1950s and 1980s and the growing inflow of tourists increased the anthropic pressure on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Epomeo
Mount Epomeo (Italian: ''Monte Epomeo'') is the highest mountain on the volcanic island of Ischia, in the Gulf of Naples, Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical .... Epomeo is believed to be a volcanic horst. Reaching a height of , it towers above the rest of Ischia. Much of Epomeo is covered in lush greenery, with a few vineyards also occupying its slopes. Approximately from the peak the mountain is covered in white lava. A path leads to the summit of the mountain from Fontana, one of its quiet traditional villages. ReferencesVolcanological history of Ischia Island Epomeo Epomeo Ischia Horsts (geology) Mountains of Italy under 1000 metres {{Campania-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA Earth Observatory
NASA Earth Observatory is an online publishing outlet for NASA which was created in 1999. It is the principal source of satellite imagery and other scientific information pertaining to the climate and the environment which are being provided by NASA for consumption by the general public. It is funded with public money, as authorized by the United States Congress, and is part of the EOS Project Science Office located at Goddard Space Flight Center. , NASA Earth Observatory has won the Webby People's Voice Award in Education three times. There were a series of publicized images issued by the website in 2008, including imagery of clouds streaming over the Caspian Sea, dust storms curling off the coast of Morocco, the crumbling of the Wilkins Ice Shelf, Hurricane Bertha, and others. See also * Earth observation ** Earth observation satellite * Space exploration Space exploration is the use of astronomy and space technology to explore outer space. While the exploration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faulting
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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horst (geology)
In physical geography and geology, a horst is a raised fault block bounded by normal faults. Horsts are typically found together with grabens. While a horst lifted or remains stationary, the grabens on either side subside. This is often caused by extensional forces pulling apart the crust. Horsts may represent features such as plateaus, mountains, or ridges on either side of a valley. Horsts can range in size from small fault-blocks, up to large regions of stable continent that have not been not folded or warped by tectonic forces. The word ''Horst'' in German means "mass" or "heap," and was first used in the geological sense in 1883 by Eduard Suess in ''The Face of the Earth.''Originally published in 1883 in German as "Das Antlitz der Erde", translated and published in English in 1904 Geomorphology Horsts may have either symmetrical or asymmetrical cross-sections. If the normal faults to either side have similar geometry and are moving at the same rate, the horst is likely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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