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Earthquake clouds are clouds claimed to be signs of imminent earthquakes. They have been described in antiquity: In chapter 32 of his work Brihat Samhita , Indian scholar Varahamihira (505–587) discussed a number of signs warning of earthquakes, including extraordinary clouds occurring a week before the earthquake. [ 5 ]
Earthquake lights may be classified into two different groups based on their time of appearance: (1) preseismic earthquake light, which generally occur a few seconds to up to a few weeks prior to an earthquake, and are generally observed closer to the epicenter and (2) coseismic earthquake light, which can occur either near the epicenter ...
The Northridge Earthquake was the subject of the 1995 film Epicenter U., a first-hand account of healing from the natural disaster, directed by Alexis Krasilovsky. [71] [72] The Earthquake Haggadah (1995) was a video excerpt from Epicenter U. narrated by Wanda Coleman. Distributed in 3/4" and VHS by the Poetry Film Workshop circa 1998.
The yellow color is due to the presence of pollutants in the smoke. Yellowish clouds caused by the presence of nitrogen dioxide are sometimes seen in urban areas with high air pollution levels. [22] Red, orange and pink clouds occur almost entirely at sunrise and sunset and are the result of the scattering of sunlight by the atmosphere.
Airport weather warning AWW – Addresses weather phenomena (including but not limited to surface wind gusts around or above 40 knots (46 mph), freezing rain, heavy snow or thunderstorms producing cloud-to-ground lightning within 5 miles [8.0 km] of the airport and/or 1 ⁄ 2-inch [1.3 cm] hail) capable of adversely affecting ground operations ...
An earthquake is a phenomenon that results from the sudden release of stored energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes may manifest themselves by a shaking or displacement of the ground and sometimes cause tsunamis, which may lead to loss of life and destruction of property. An earthquake is ...
Earthquakes: Shallow earthquakes can generate sound waves with little ground vibration: The "booming" sound is heard only locally, near the epicenter. [7] [8] Avalanches, either natural or human-caused (for avalanche control). Weather: Distant thunder, or loud sounds from wind damage.
Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings — later followed by seismotomography imaging technique, [1] observations using space satellites from outer space, [2] artificial intelligence (AI)-based earthquake warning systems [3] — they rely mainly ...