According to Global Network, the night before the major earthquake in Taiwan, a Taiwanese netizen posted a photo with a "visual phenomenon". At that time, there was a message saying that it was very similar to the sky before the 921 earthquake. Unexpectedly, a strong earthquake occurred the next day.
From the photos posted by this netizen, it can be seen that the sky is divided into several layers, including orange, dark blue and pink-purple, and then turns to azure, and finally turns to dark blue.
After the earthquake, the news posted by this netizen attracted tens of thousands of people to watch and leave messages. Some people even lamented, "It turns out that the vision in the sky is real."
Many people may sneer at this news, but some people think that "visions in the sky" have certain reference value. You must know that in ancient times, there were no high-tech instruments. At that time, people mostly relied on " To survive with skills such as "Observing the Sky at Night", the question arises, does this so-called "vision" have any reference value?
After looking through the data, I found that the ancients would consciously summarize some "visions" that occurred in nature before earthquakes occurred. These records would also enter history books and become earthquake historical materials. Taking the historical records of the Ningxia earthquake in the Ming Dynasty as an example, the signs before earthquakes are basically It can be divided into two categories: weather anomalies and biological anomalies.
First of all, let’s talk about weather anomalies, which usually include two categories: celestial anomalies and meteorological anomalies.
The former mostly manifests itself as astronomical phenomena such as solar eclipses, lunar eclipses, meteors or comets. For example, in the second year of Tianqi (1622), "In the ninth month of Jiayin, Guyuan Prefecture, Shaanxi Province, stars fell like rain, Pingliang Longde and other counties, Zhenrong, Pinglu and other places, Magang, Shuangfeng and other fortresses were shaken by earthquakes." .
The latter is mostly manifested by extreme weather such as strong winds, frost, snow, heavy rain, thunder and lightning. For example, in the eleventh year of Hongwu (1378), "Ji Mao, Ningxia suffered heavy rain and earthquakes."
In addition, "[Qianlong] Ningxia Prefecture Chronicle" "Volume 22 also records the vision of wind, rain and fire before the Ningxia Wei earthquake. "On the night of Dingmao in the eleventh year of Hongwu (1378), Ningxia Wei was windy and rainy, and there were fires in the flags and flags of Doudun. It was Yisi in April of that year. , Ningxia earthquake. "
Let's talk about biological anomalies. Biological anomalies are mainly various strange phenomena displayed by animals or plants before the earthquake.
Common phenomena include plants blooming and bearing fruits in violation of the seasons, and various abnormal behaviors of animals before earthquakes. For example, "In the third year of Zhengde, the mangosteens in the southwest of (Pingliang) Prefecture were strong, and cats ate them. The hair was like mink, which could be used as fur, and people could also eat it. It was winter, and the bamboos were all withered, but they would regenerate in a few years."
After that, Pingliang Prefecture Guyuan Prefecture and other places have experienced continuous earthquakes for many years. In that year, "at the end of the first month of the year, there was an earthquake in Pingliang Prefecture, with a sound like thunder." "On Dingyou in February, there were earthquakes in Guyuan, Gongchang, and Jiezhou, Shaanxi." In October of the same year, there was an earthquake in Ningxia. In April of the following year, major earthquakes occurred in Zhongwei, Ningxia, Guyuan Prefecture, and Qinzhou, Shaanxi Province. In May, Guyuan Prefecture was shaken again.
Between September and December of the fourth year of Zhengde (1509), Ningxia Wei suffered three consecutive earthquakes.
In addition to the above cases, some people who have experienced earthquakes have said that they have seen some abnormal situations, such as animals fleeing collectively, etc. These abnormal phenomena seem to indicate that a disaster is coming. However, from a scientific perspective, , these visions only have a "reference only" value and cannot be reliable evidence that an earthquake is coming.
For example, the above-mentioned "sky phenomenon" photographed by netizens on the island, some experts on the island explained that it should be topographic clouds brought by southwesterly winds. The place where the earthquake occurs and the place where the clouds form are in two spaces. There is currently insufficient scientific basis to prove that clouds can predict the occurrence of earthquakes.
There is also a "Song of Earthquake Phenomenon" in history: "Animals have precursors before earthquakes, and any abnormality must be reported. Cattle, horses, mules and sheep do not enter the pen, pigs do not eat, and dogs bite..." Indeed, just looking at these phenomena, the above explanation is also All are reasonable, but predicting earthquakes based on "visions" is not necessarily reliable.
Generally speaking, if you want to accurately capture the microscopic precursors of earthquakes, you need to establish an earthquake observation network covering an area and conduct long-term precise observations. Unfortunately, humans are currently unable to completely accurately predict the occurrence of earthquakes. I hope this day will come soon!
