Wenchuan Earthquake Again Experts： Aftershocks in Wenchuan will last for hundreds of years.

CCTV News:Officially measured by China Seismological Network, an earthquake of magnitude 4.8 occurred in Wenchuan County, Aba Prefecture, Sichuan Province at 23: 36 on July 14th. The epicenter of this earthquake was located in Yingxiu Town, Wenchuan County, with sanjiang town, Yingxiu Town and Wolong Town within 20 kilometers of the epicenter. When the earthquake happened, these towns felt the earthquake clearly. The earthquake was felt in Dujiangyan City, Chengdu City and other places nearby. China Earthquake Warning Network sent out earthquake warning information 5 seconds after the earthquake, and Chengdu received the warning information 19 seconds before the arrival of the earthquake wave.

After the earthquake, the local government and firefighters immediately organized personnel to rush to various towns to check the disaster situation, but they did not receive the relevant disaster alarm. The reporter learned from the Wenchuan County Emergency Management Bureau that the earthquake did not cause casualties and disappearances, no major property losses and infrastructure damage, and the people’s lives and production were normal and orderly.

According to the expert analysis of Sichuan Earthquake Administration, this earthquake belongs to a ups and downs activity in Wenchuan aftershock area. The "5.12" Wenchuan earthquake occurred in 2008, and more than ten years have passed. So why is this earthquake still the aftershock of the Wenchuan earthquake that year? Today’s news expert said, let’s listen to Liu Jie, a researcher at China Seismological Network Center.

Liu Jie, a researcher at China Seismological Network Center:Why is the earthquake of magnitude 4.8 in Wenchuan County on July 14th the aftershock of Wenchuan Earthquake? After a major earthquake, with the accumulation of time, the intensity and frequency of seismic activity will decrease, but it will take a long time before the Wenchuan earthquake in 2008, which basically takes 10% of its recurrence period. Like Wenchuan aftershock, the aftershocks of this earthquake have accumulated for thousands of years, so as Wenchuan aftershock, aftershock activities may last for hundreds of years. This phenomenon is quite common in history. As we all know, an earthquake of magnitude 7.8 occurred in Tangshan in 1976, and an earthquake of magnitude 5.1 occurred in Guye in 2020. There is another example in the United States. There was an earthquake in the 19th century, and there are still aftershocks. Therefore, for nature, human beings feel it for a long time, but the process of evolution in nature is very slow. Basically, it takes 10% of its recurrence period to stop this aftershock activity.