6.2 Earthquake refers to the earthquake intensity measured according to the earthquake magnitude scale. Earthquake magnitude is usually used to measure the degree of earthquake energy release, which is a mathematical calculation of seismic wave amplitude. The magnitude of the earthquake is related to the degree of damage and harm of the earthquake, although it is not exactly the same. The earthquake with magnitude of 6.2 is usually considered as a moderate earthquake, which can produce obvious earthquake sensation and cause certain material damage.
The power and influence degree of a specific earthquake will be affected by many factors, including focal depth, epicentral distance, geological conditions and seismic performance of building structures. Therefore, earthquakes with the same magnitude may have different effects in different regions and different environments. On the whole, the earthquake of magnitude 6.2 may cause disasters such as building damage, ground cracks, landslides and land liquefaction, and may have a certain impact on society.
Standard classification of magnitude:
1. Generally, earthquakes with a magnitude of less than 2.5 are called minor earthquakes, earthquakes with a magnitude of 2.5-4.7 are called sensible earthquakes, and earthquakes with a magnitude of more than 4.7 are called destructive earthquakes. The magnitude difference per 1.0 and the energy difference are about 30 times; For every difference of 2.0, the energy difference is about 900 times.
2. For example, the energy released by an earthquake of magnitude 6 is equivalent to the energy of the atomic bomb icon dropped by icon in Hiroshima, Japan. An earthquake of magnitude 7 is equivalent to 30 earthquakes of magnitude 6 or 900 earthquakes with magnitude difference of 0. 1, and the average difference of energy released is 1.4 times.
3. The magnitude of weak earthquake is less than 3. This kind of earthquake is generally not easy to detect if the source is not very shallow. The magnitude of the felt earthquake is equal to or greater than 3 and less than or equal to 4.5. People can feel this kind of earthquake, but generally it won't cause damage.
4. The magnitude of moderate earthquake is greater than 4.5 and less than 6. It belongs to an earthquake that can cause damage, but the degree of damage is also related to many factors such as focal depth and epicentral distance. The magnitude of a strong earthquake is equal to or greater than 6. Among them, the magnitude greater than or equal to 8 is also called a giant earthquake.