Earhtquake lights Essay Example | Topics and Well Written Essays - 1500 words

Earhtquake lightings - Essay ExampleYutaka Yasui, a Japanese seismologist for Kakioka Magnetic Observatory do his personal observations and documented 34 detailed accounts of EQL including 14 sketches and 10 photographs taken by residents in the Matashiro argona. Later, Yasui cogitate that 18 of the 34 detailed accounts could not be elucidate by known lighting military action like twilight, zodiacal light, auroras, meteors and other sources and the other 16 accounts cannot be considered natural phenomena (Wagner, 1978).The appearances of these strange lights during and after an temblor are also visible in other parts of the globe. In 1976, a stunning EQL activeness grizzleing several hundred of square kilometers was seen in mainland China. Many other recorded sightings in miscellaneous parts of the world including Hawaii, Taiwan, Alaska, Soviet Union, and the United States.seism Lights or EQL are generally known as bright luminescence based near ground level or broad sky glow s that cover areas up to several square kilometers and sometimes more (Wagner, 1978). EQL varies in color from bright white and blues to reds and oranges, fleetrence with other colors than those mentioned said to be effects of variations in the atmosphere such as humidity, barometric pressure, pollutants and cloud cover (Wagner, 1978). jibe to Wagners (1978) article, a more detailed description of EQL summarized by twain seismologists Yutaka Yasui and John Derr asa) Flashes of lights lasting from 10 seconds to 10 minutes. b) Extensive blaze like search light beams limited to point sources. The estimated luminescent spheres are between 50-100cm in diameter up to 200m in diameter.c) Incidences of EOL are mostly near areas of known active faulting, mountain peaks, and areas with rich deposit of high normative quarts or silicia minerals. d) Usually occurring accompanied by major weather fronts instantaneous with temblor activity.e) Large decrease in electric potential gradient, rad io interference ranging from 10-20KHZ, absence of anomalies in magnetometer and spectroscope readings during EQL activity.f) Presence of atmospherical potential gradients and increase in radon gas near mountain peaks and fault zones.The most general explanation of EQLs mechanism is the violent low-level air oscillation due to tremor movement that sets up electrical disparity in the air. The other is the piezoelectric effects that occur when SiO2 rich rocks undergo stress. The scheme is a less accepted because of the facts that EOLs are sighted and visible before the earthquake take place. According to Wagner 1978, another weak theory is the explanation that some earthquake radiance is auroras (northern lights). Auroras are made up of charged particles about 60 miles above the earth and comes naturally in colors of blue and green. Auroras occur year round and most visible in fall and spring months and typically last an hour. Earthquake lights are only visible whenever there is a tr emor and last for a few minutes. in that respect is a great possibility that EQLs are spawn by electrostatic charges considering animal behavior when an earthquake is about to take place (Wagner, 1978).Occurrence of