“Plant forecaster” before the earthquake

  In the precursors of various earthquakes, people pay much attention to the abnormal phenomena of certain animals, such as cattle and sheep scurrying, snakes and rabbits migration, and toads on the road. But people may not know that certain plants will have obvious “abnormal reactions” before the earthquake.
  In the 1970s, China had many earthquakes. Before these earthquakes, many plants had abnormal phenomena: In 1970, a magnitude 5.1 earthquake occurred in Xiji, Ningxia. One month before the earthquake, Longde County, 60 kilometers away from the epicenter, was in In early winter, dandelions bloom early. In 1972, there was a 4.2 magnitude earthquake in the Yangtze River estuary area. The yam vines in the vicinity before the earthquake suddenly bloomed. In early February 1976, a strong earthquake occurred in Haicheng, Liaoning. In the two months before the earthquake, some Apricot trees bloom ahead of schedule; in July 1976, a major earthquake occurred in Tangshan. Before the earthquake, bamboo blossoms appeared in Tangshan, willow branches died, and some fruit trees bloomed again. On August 16, 1976, a magnitude 7.2 earthquake occurred in Songpan, Sichuan. In nearby Pingwu County, the tung tree branches withered, the magnolia blossomed again, and the arrow bamboo blossomed and died in a large area, causing the giant panda to be destroyed.
  According to scientists’ analysis, the most sensitive plant before the earthquake was mimosa. A few hours before the occurrence of a strong earthquake, mimosa leaves, which are sensitive to the outside world, shrank suddenly and then withered. Japan is a country prone to earthquakes. Japanese scientists have discovered that under normal circumstances, the leaves of mimosa open during the day and close at night. If the mimosa leaves close during the day and open at night, it is a precursor to an earthquake. For example, on January 13, 1938, a strong earthquake occurred in Japan. At 7 am on the 11th before the earthquake, the mimosa in many Japanese gardens began to open, but at 10 o’clock, the leaves suddenly closed. In 1976, members of the Japan Earthquake Club also observed abnormal closure of mimosa leaves on many occasions. As a result, earthquakes occurred subsequently. Mimosa can predict not only earthquakes, but also catastrophic weather changes. It will produce unconventional growth activities in response to sudden anti-seasonal temperature differences, geomagnetism, and geoelectricity.
  Albizia is also a master of earthquake prediction in the plant world. Starting in the late 1970s, Japanese scientists started with the changes in the bioelectricity of albizia tree cells to study the relationship between it and earthquakes. They used a high-sensitivity recorder to measure the bioelectricity of the albizia tree, and a miracle happened. In 1978, from June 10 to June 11, there was a significant abnormality in the bioelectricity of the albizia tree, and the bioelectricity of the albizia tree was normal for the four days before this, which indicates that there may be a major earthquake occur. Sure enough, on the second day, a magnitude 7.4 earthquake occurred in Miyakai Prefecture, Japan. After the aftershocks lasted for more than 10 days, the bioelectric current of the albizia tree regularly weakened as the aftershocks weakened.
  According to written records, there are many plants that predict earthquakes. For example, there is a kind of cabbage in India. If new sprouts appear, it is a sign of an earthquake. There is also the “Earthquake Flower”, a cherry blossom plant on the island of Java in Indonesia, which blooms suddenly before the earthquake. Residents on the island use this plant as an observation device, and as soon as they find it blooming, they will immediately make emergency preparations. Volcanoes are often related to earthquakes, and some plants can also predict volcanic disasters. Bangla Lagoon on Java Island is an active volcano. There is also a kind of primrose on the mountain. Whenever the volcano erupts, a few primroses always bloom on the top of the mountain.
  Plants can not only monitor earthquakes, but also record earthquakes. American scientist Corton Jakobbi discovered that the annual rings of trees can record earthquakes. The botanist found in a place in Alaska that the annual rings of pine trees were very irregular and crowded together. So he checked relevant information. As expected, there was a major earthquake here in 1899, and the ground rose a little after the earthquake. . Jakobi believes that after the earthquake, the growth environment of trees has changed a lot, which affected the growth of trees. For example, the rising or falling of the ground can change the supply of groundwater to trees; cracks in the ground will damage the roots of the trees, thereby affecting the absorption of water and nutrients by the trees. These environmental changes will leave marks on the growth rings of trees. Therefore, the tree that has experienced the period of underground fault activity will record the relevant situation of the earthquake at that time in its annual ring, providing important information and data for human research and prediction of earthquakes.
  So, on the eve of the earthquake, why can plants feel that an earthquake is coming? Scientists believe that in the process of gestation of an earthquake, due to the huge pressure deep in the earth, it creates a voltage in the quartz stone, so an electric current is generated. Plant roots are stimulated by electric currents in the stratum, and corresponding potential changes appear in the body, which causes abnormal phenomena in plants.
  Of course, the research on using plants to predict earthquakes has just started and is still very immature, but we believe that through the continuous efforts of scientists, the ideal of using plants to predict earthquakes will surely be realized.