An earthquake of magnitude 6. 1 occurred in Naqu, Tibet. What are the signs before the earthquake?

According to the official measurement by China Seismological Network, an earthquake of magnitude 6. 1 occurred in Ruxian County, Naqu City, Tibet, with the focal depth of 10 km and the epicenter at 3 1.94 degrees north latitude and 92.74 degrees east longitude. For example, there are strong earthquakes in Quxia Town, Qiaze Township, Nima Township and Baixiong Township of Nie Rong County in Sene.

After the earthquake, Xizang Autonomous Region and Naqu City attached great importance to it and conducted a comprehensive investigation, requiring all personnel to move out of dangerous houses to ensure the safety of personnel; It is necessary to quickly mobilize materials and do a good job in the psychological comfort of the masses. Naqu immediately launched a four-level emergency response and organized emergency forces such as public security, fire fighting and civil affairs to rush to the earthquake zone.

At the same time, city, county, township and village working groups have rushed to the scene to organize cadres and village committees to investigate and verify the situation village by village. According to the latest news of Naqu municipal government, at present, for example, some houses in Quxia town of this county are damaged and cracked, and there are no reports of casualties. Relief materials have been sent to Quxia Town.

The changes behind different abnormal phenomena of animals can not be used to predict earthquakes. The biggest difficulty in predicting earthquakes is the difference from ordinary clouds. So far, scholars who are keen on using earthquake clouds to predict earthquakes are not clear! Therefore, most of the earthquakes predicted by earthquake clouds are just the corresponding earthquakes after the event! A scholar at the Institute of Atmospheric Physics, Chinese Academy of Sciences-small chest and big face-also thinks that earthquake clouds are common clouds in many meteorology!

As for animal anomalies, it is actually a reaction after animals instinctively perceive the changes of the earth's electromagnetic field before the earthquake. However, when animals encounter climatic and meteorological changes, environmental changes, physiological periods, etc., they will have abnormal reactions. Until now, human beings have not been able to distinguish the changes behind different anomalies of animals, so they cannot be used to predict earthquakes.

Generally, we should be careful when using macro exceptions. In short, although macroscopic anomalies are easy to observe, they are difficult to identify and quantify because of the influence and interference of human activities, meteorological and climatic factors, environmental factors and physiological factors of animals and plants. At present, it is difficult to use them alone in earthquake prediction without micro-anomalies. So be careful when using macro exceptions at ordinary times!

Geophysical anomalies refer to the light emitted underground before the earthquake, which has various colors, such as silver blue, white purple, etc., which are rare in daily life, but mainly red and white; Its forms are also different, such as ribbon, sphere, column, diffusion and so on. Generally speaking, the earth's light appears in a wide range, mostly within a few hours to a few minutes before the earthquake and lasts for a few seconds.

In the epicenter area, there are often "before each earthquake, the underground sound is like a bulging sound, which refers to the sound from the underground before the earthquake." It sounds like cannon and thunder, as well as heavy cars and strong winds. When an earthquake occurs, longitudinal waves radiate from the source and propagate along the ground, making the air vibrate and sound. Because of the high speed but weak potential of P-wave, people only smell its sound, but don't feel its motion until the arrival of S-wave.

Therefore, there is often a record in the epicenter that "before every earthquake, the underground sound expands like gas, like boiling water in a tripod". If you are in the epicenter, you can often hear the sound of a magnitude 3 earthquake. Geosound is the result of the structure and structure of underground rocks and the movement of liquid and gas contained in them, and a considerable part of it is a sign of impending earthquake.

Rescue forces from all sides in Tibet also acted quickly to further strengthen earthquake monitoring in the region and do a good job in preventing aftershocks. Rescue forces from all sides in Tibet also acted quickly in the earthquake. After the earthquake, the Xizang Autonomous Region Fire Rescue Corps immediately launched the earthquake rescue plan, and mobilized 6 cars and 28 people from the Qiantu Brigade, Nierong County, Ruxian County and Suoxian County of Naqu City Fire Rescue Detachment to go to the epicenter for rescue. The field team of Seismological Bureau of Xizang Autonomous Region also went to Naqu to further strengthen earthquake monitoring in this area and do a good job in aftershock prevention.