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Port Royal Earthquake
The 1692 Jamaica earthquake struck Port Royal, Jamaica, on 7 June. A stopped pocket watch found in the harbor during a 1959 excavation indicated that it occurred around 11:43 AM local time. Known as the "storehouse and treasury of the West Indies" and as "one of the wickedest places on Earth", Port Royal was, at the time, the unofficial capital of Jamaica and one of the busiest and wealthiest ports in the Americas, as well as a common home port for many of the privateers and pirates operating on the Caribbean Sea. The 1692 earthquake caused most of the city to sink below sea level. About 2,000 people died as a result of the earthquake and the following tsunami, and another 3,000 people died in the following days due to injuries and disease. Tectonic setting The island of Jamaica lies on the boundary between the Caribbean Plate and the Gonâve Microplate. The Gonâve microplate is a long strip of mainly oceanic crust formed by the Cayman spreading ridge within a Extensiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moment Magnitude Scale
The moment magnitude scale (MMS; denoted explicitly with or Mw, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. It was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude scale, local magnitude/Richter scale () defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often says "Richter scale" when referring to the moment magnitude scale. Moment magnitude () is considered the authoritative magnitude scale for ranking earthquakes by size. It is more directly related to the energy of an earthquake than other scales, and does not saturate—that is, it does not underestimate magnitudes as other scales do in certain conditions. It has become the standard scale used by seismological authorities like the U.S. Geological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geophysical Journal International
''Geophysical Journal International'' is a monthly peer-reviewed scientific journal published by Oxford University Press on behalf of the Royal Astronomical Society and the Deutsche Geophysikalische Gesellschaft (German Geophysical Society). The journal publishes original research papers, research notes, letters, and book reviews. It was established in 1922. The editor-in-chief is Joerg Renner (Ruhr University Bochum). The journal covers research on all aspects of theoretical, computational, applied and observational geophysics. History The journal was formerly entitled ''Geophysical Journal'' (Oxford) from January 1988 to June 1989. The ''Geophysical Journal'' was itself formed by the merger of three other publications: ''Geophysical Journal of the Royal Astronomical Society'', ''Journal of Geophysics'', and ''Annales Geophysicae, Series B: Terrestrial and Planetary Physics''. ''Geophysical Journal of the Royal Astronomical Society'' was in existence from March 1958 to December ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edwin Albert Link
Edwin Albert Link (July 26, 1904 – September 7, 1981) was an American inventor, entrepreneur and pioneer in aviation, underwater archaeology, and submersibles. He invented the flight simulator, which was called the "Blue Box" or "Link Trainer". It was commercialized in 1929, starting a now multibillion-dollar industry. In total, he obtained more than 27 patents for aeronautics, navigation and oceanographic equipment. Early life Edwin Link was born in Huntington, Indiana, in 1904, the son of Edwin A. Link, Sr., and Katherine (Martin) Link. In 1910, he moved with his family to Binghamton, New York. Aviation Aviator He took his first flying lesson in 1920. In 1927, he obtained the first Cessna airplane ever delivered and eked out a living by barnstorming, charter flying and giving lessons. As a young man, Edwin Link used apparatus from his father's automatic piano and organ factory (of the Link Piano and Organ Company) to produce an advertising airplane. A punched roll and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeology
Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology is distinct from palaeontology, which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until the adven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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