Earth earthquakes occur every day, but the following situation is relatively rare, Qinghai Menyuan from January 8 at 1:45:27 a.m., 11 consecutive earthquakes, until January 8 at 14:30:5 seconds to declare the end, the strongest earthquake magnitude of 6.9, the rest are strong aftershocks after the earthquake.
The spreaders in the houses were shaking, the unreliable debris was falling, the dogs were barking, the cattle were rushing, and some people ran out in panic wrapped in large quilts, standing in the cold wind and shivering.
The epicenter location coordinates of the largest earthquake in Qinghai Menyuan were 37.77° north latitude and 101.26° east longitude, and the depth of the source was 10 kilometers, and subsequently, the Qinghai Provincial Earthquake Bureau found that the surface of the Daxigou and sulfur ditch ruptured to form a squeeze bulge.
Fortunately, the average altitude within 10 kilometers of the epicenter is about 3659 meters, the population is sparsely populated, even if there are buildings, the construction of the earthquake ability is also taken into account, the residents have a strong sense of prevention, so it did not cause particularly large losses.
However, before the earthquake, there was a strange thing: the real image recorded by the surveillance screen showed that a second before the earthquake, a sudden flash of strong light in the distance, instantly illuminating the night, was very frightening, but the strong light only lasted for one second and then disappeared, followed by another flash of strong light, this time for a shorter duration, not even a second.
What is the pre-earthquake flash of light, is it the "last judgment" in God's words? Of course not, this phenomenon has a special name seismic light, also known as ground light. Seismic light is a kind of sudden appearance of a short-lived strong light in the sky before and during an earthquake, with red, orange, yellow, green, blue and other colors, and sometimes colorful light.
For example, at 20:06 local time on January 21, 2003, a 7.6-magnitude earthquake occurred in Colima, Mexico, on the Pacific coast of the United States, and when the earthquake occurred, colorful lights appeared in the sky.
The world's first recorded seismic light phenomenon was on July 9, 869 AD, in the territory of Fukushima Prefecture, Miyagi Prefecture and Iwate Prefecture in Japan, when these prefectures belonged to the ancient Mutsu Kingdom, and records show that when the Mutsu Kingdom struck an earthquake of magnitude 8.4, some strange light appeared in the sky.
Although seismic light has been recorded by humans for thousands of years and scientists have studied it for hundreds of years, there is no definite answer to its formation mechanism.
However, the University of California physicist Friedman Freud proposed an explanation, which is regarded as the mainstream explanation, Freud believes that when the earthquake occurs, the ground forms a huge pressure, causing the igneous rock to temporarily become a semiconductor, becoming a "hole" for conducting charges, and the underground squeezing process when the earthquake occurs makes the "peroxide group" matter ionize, and a large amount of charge gathers on the surface of the rock, and as the charge increases, a strange luminescence phenomenon is produced.
Of course, there are many different interpretations:
First, when the earthquake occurred, the ground moved violently, and there was a high stress in the instant before the movement, and then the rock formation broke, resulting in the peroxy bond of the compound in the rock breaking, so a large number of ions moved upward along the fracture, violently hitting the gas in the air, and stimulating the light, just like the Northern Lights.
Second, when the rock layer is broken, the instantaneous violent friction produces an electric charge, moves along the fault line of the rock formation, and the atmosphere is ionized, and the instant of becoming a plasma produces bright electric light.
Third, the temperature of the rock formation is very high at the time of fracture, the violent friction produces an electric charge, and the very high temperature will chemically react the water on the surface layer into hydrogen and oxygen, and the electric charge will ignite the hydrogen, plus oxygen to ignite, so there is a burst of flashing light.
Fourth, when an earthquake occurs, the Earth's magnetic field or ionosphere is partially destroyed, so an optical phenomenon similar to the sky glow effect appears.
Fifth, the structure containing quartz rock is instantaneously broken to produce a strong electric field, and the water vapor and gas released into the air when the earthquake occurs are instantly ionized, producing electric light.
Not all earthquakes will appear seismic light, otherwise, physical scientists have long studied this luminous phenomenon thoroughly, only the higher the earthquake level, the more likely there is seismic light, generally above 6 levels, of course, even if the earthquake level reaches 6 or above, there may not be seismic light.
In the past year, the world has recorded no less than a hundred earthquakes of magnitude 6 or above, but the seismic light has only been observed once, of course, when the earthquake occurs, the ground is shaking violently, people are too late to escape, where is the free time to pay attention to the flashes in the sky.
In short, the seismic light that was really recorded was very rare, very rare, and there was no exact explanation for the seismic light formation mechanism, and the Qinghai Gate source suddenly flashed 2 strong lights 1 second before the earthquake and when the earthquake occurred, which should be rare seismic light, not some kind of man-made explosion.
According to the latest news, the Qinghai Menyuan epicenter location is sparsely populated, and did not cause much impact, temporarily no casualties were found, the order of life is in normal progress, knowing this result, it is estimated that many Chinese people can breathe a long breath: there is not much impact. Interesting and informative scientific content, please pay attention to the only WeChat public account: Interesting Exploration