According to the China Earthquake Administration, a magnitude 4.1 earthquake occurred in Tumote Left Banner, Hohhot, Inner Mongolia at 01:51 on December 12, 2022, with a depth of 10 kilometers.
When this earthquake occurred, the earthquake felt more obvious in Hohhot, Inner Mongolia, and Baotou and other areas. We have collected questions that are of concern to netizens and answered in a concentrated manner.
1. Question: Is the magnitude 4.1 earthquake that occurred in Tumote Left Banner, Hohhot, Inner Mongolia on December 12 a foremost earthquake? Are there any aftershocks in the local area recently?
Answer: Preliminary analysis and judgment: The magnitude 4.1 earthquake that occurred in Tumote Left Banner, Hohhot, Inner Mongolia on December 12, 2022 is a normal stress release in this area. It is currently judged that destructive earthquake will not occur in Hohhot, Inner Mongolia in the near future. In addition, regarding whether there are still aftershock activities in the local area in the near future, we believe that there may be aftershock activities, but aftershock magnitude is mainly between magnitude 1 and magnitude 3 and is not destructive.
2. Question: Which earthquake fault zone is located in the magnitude 4.1 earthquake that occurred in Tumote Left Banner, Hohhot, Inner Mongolia on December 12?
Answer: According to the official earthquake epicenter data, the 4.1 magnitude earthquake in Tumote Left Banner of Hohhot is located near the front fault zone of Daqingshan Mountain. The front fault zone of Daqingshan Mountain is one of the largest earthquake fault zones in the Hetao area. It starts from near Machi Town, Baotou City, and passes through Baotou City , Donghe District, Baotou City, Tumote Right Banner , Tumote Left Banner , Hohhot Huimin District, and extends to northeast of Hohhot. The entire fault zone in front of Daqingshan Mountain is about 200 kilometers long.
Historically, there have been two major earthquakes in total on the fault zone of Daqingshan , namely, the Machi magnitude 8 earthquake in Baotou, Inner Mongolia on November 11, 7 BC and the 7.7 earthquake in Baotou, Inner Mongolia on October 20, 849.
3. Question: What regional earthquake activities should be paid attention to in the future of Hetao area in Inner Mongolia?
Answer: According to the earthquake activity data in Hetao, Inner Mongolia in recent years provided by the China Earthquake Administration, the earthquake activity in Hetao, Inner Mongolia in recent years has shown an active feature year by year, especially the earthquake activity in Baotou-Hohhot. In the years before 2016, there were no earthquake activity in Baotou-Hohhot in the Baotou-Hohhot area. Since 2016, the area has occurred on January 19, 2016. The magnitude 3 earthquake in the Tumote Right Banner of Baotou, the magnitude 4 earthquake in Hohhot and Linger on March 30, 2020, the magnitude 3 earthquake in Hohhot and Linger on August 31, 2020, the magnitude 3.8 earthquake in Jiuyuan District, Baotou on October 16, 2020, the magnitude 3.2 earthquake in the Tumote Left Banner of Hohhot on January 24, 2021, the magnitude 3.8 earthquake in the Dalat Banner of Ordos on January 23, 2021, and the magnitude 3.1 earthquake in the Tumote Left Banner of Hohhot on February 24, 2022.
We look at the historical seismic activities distribution in Hetao, Inner Mongolia, and suggest that relevant departments need to strengthen the monitoring of earthquake precursors in the Machi in Baotou City in the western section of the Daqingshan Forefront Fault Zone and Tumote Left Banner-Hohhot in the eastern section of the Daqingshan Forefront Fault Zone in the future.
