The earth is shaking every day? Is it true? Some say that there are two times a day when there are s

Underneath the earth's crust is the mantle, on which the continents move every day, every hour, every moment, but in different sizes and in different human perceptions.

As for the landlord's statement that the excavation trench cannot be carried out at noon, this is not completely without scientific basis, but this has nothing to do with geology, but because the temperature is hot at noon, people are prone to heat stroke when they do high-intensity labor. As for the easy landslide, there is no scientific basis for this.

It's true, the earth doesn't have **tens of millions of times a year, every day**, but it's just a small **... There is no feeling at all, maybe only mosquitoes can know.

According to the German scientist Weide's theory of the earth's plates, all the continents on the earth are plates floating on the ocean, and these plates are also drifting over the years. For example, the Indian Ocean plate and the Eurasian plate are squeezed together in the long river of time to form the world's highest peak. Therefore, it is normal for vibrations to occur during plate movement, but it is only a matter of the strength of the vibrations.

This is feudal superstition, right? As long as there are no complaints on the construction site, work can start 24 hours a day.

The geological reasons depend on the geological conditions and structure of the construction site, and there is no necessary relationship with the time of construction.

Factors may be seasonal and climatic, such as not working immediately after heavy rains, and there may be a danger of soil collapse.

It is true that there are ** happening every day on the earth, and it will happen more than 10,000 times a day, about 5 million times a year, but the vast majority of these ** are very small and people can't feel it.

It is divided into two categories: natural and artificial. Naturally**mainly tectonic**, it is due to the rupture and dislocation of rocks deep underground that release the energy accumulated for a long time sharply, and propagate in all directions in the form of **waves, causing the house to shake the ground caused by the ground. Structures account for more than 90% of the total.

This is followed by volcanic eruptions, called volcanoes, which account for about 7% of the total. In addition, some special circumstances can also occur, such as cave collapse (collapse**), large meteorite impact on the ground (meteorite impact**), etc.

Artificial is caused by human activity. Such as vibration caused by industrial blasting and underground nuclear **; High-pressure water injection in deep wells and the impoundment of large reservoirs increase the pressure in the earth's crust and sometimes induce it.

Yes, there are ** every day, but the magnitude of the earthquake is big and small, the small one is just not felt by people, the location may be in the sparsely populated land, or it may be in the depths of the ocean, of course, if the ** is you know, it must be detected by people.

** is the movement of the earth, which is the vibration of the earth's surface. There are many causes of vibrations on the earth's surface, which can be man-made, such as nuclear, cannon, mechanical vibration, etc.; It can also be caused by nature, such as tectonics, volcanoes, collapses, etc.

1.Structure: The reason for the occurrence of structure is that the underground rock layer is subjected to the action of in-situ stress, when the in-situ stress is too large, the rock layer can not bear it, it will occur suddenly, rapid rupture or dislocation, when the rock layer rupture or dislocation, it will excite a kind of ground wave that spreads to the surrounding area, and when the wave reaches the surface, it will cause the ground to shake.

85% and 90% of the world's disasters and all major disasters are tectonic.

2.Volcano**: Caused by a volcanic eruption**.

3.Collapse**: Caused by the collapse of the stratum.

4.Induced**: Caused by human activities such as nuclear explosions, building collapses, reservoir impoundments, etc.

P.S.: Regarding the fourth point, some people subdivide why reservoirs**, artificial**, etc.

by: The dawn is dawning.

Under the action of internal and external forces, the accumulated tectonic stress of the earth's crust is suddenly released, resulting in a seismic elastic wave that spreads from the epicenter to the surrounding ground tremors.

Recently, NASA scientists have found that the earth has shaken more than a dozen times in 3 hours, and many of them think that such shocks are **, but what kind of ** can lead the earth to shake as a whole?

Yangcheng Evening News: In recent years, there have been many big **, some experts or stops, it is currently in the **active period, what do you think?

Zhou Fulin: So to speak. Since 2009, there has been an average of one per month for the world's level 7 or higher**, compared to an average of only one per month in the last century.

The 100-year average of the above ** is twice a year, and the all-continent salute has occurred 6 times in the last 9 months. The world** has entered a period of high activity.

Yangcheng Evening News: Some experts said that in 2008, Wenchuan ** released more energy, so in 2009 the geological activities entered the normal period, and in 2010 it was active again, is this the case?

Zhou Fulin: Generally speaking, an active period lasts for more than ten years to decades. Statistics show that the frequency of the occurrence of the first in the past few years has increased significantly, so it should be regarded as an active period.

Looking back now, my country was in an active period from the 60s to the 70s of the last century, with Xingtai and Haicheng appearing, and in 1976 Tangshan turned into a quiet period until the end of the 90s of the last century. It is unclear how long this active period will last.

No. Earthquake, also known as ground motion and ground vibration, is a natural phenomenon that causes vibration during the rapid release of energy from the earth's crust, during which ** waves will be generated. It occurs about 5.5 million times a year worldwide.

It often causes serious casualties, can lead to disasters, floods, toxic gas leaks, the spread of bacteria and radioactive materials, and may also cause secondary disasters such as tsunamis, landslides, collapses, and ground fissures.

It is divided into two categories: natural and artificial. In addition, some special cases can also occur, such as large meteorites hitting the ground (meteorite impact**), etc. There are many causes of vibration on the earth's surface, and according to the causes, it can be divided into the following types:

Structure**. Due to the deep underground rock bends, the shed is cracked and dislocated, and the energy accumulated for a long time is released sharply, and it spreads out in all directions in the form of **waves, and the shaking of the house caused by the ground to the ground is called tectonic. This kind of ** has the most frequent occurrence and the most destructive power, accounting for more than 90% of the world's **.

Volcano**. Due to volcanic processes, such as magmatic activity, gases**, etc., ** is called volcano**. Volcanoes can only occur in areas of volcanic activity, which account for only about 7% of the world's total.

Collapse**. Caused by the collapse of the roof of an underground cavern or mine is called a buried collapse. The scale of this type of ** is relatively small, and the number of times is relatively small, and if there is, it tends to occur in karst cave-dense limestone areas or large-scale underground mining areas.

Induced**. The ** caused by activities such as reservoir water storage and oil field water injection is called induced**. This type of ** only occurs in certain reservoir areas or oil field areas.

At least 10 3 10 8 joules of energy should be released in the case of a slight **, which is enough to lift an object of 10,000 tons up to 1 meter. A small jolt doesn't have to cause a **.

Yes, this is the famous butterfly effect, but you know, this is possible, not certain, and even if it is, it may be 10,000 years from now.