According to China Earthquake Network , a magnitude 6.9 earthquake occurred in Hualien County, Taiwan (23.15 degrees north latitude, 121.30 degrees east longitude), with a depth of 10 kilometers.
China Earthquake Network said that the magnitude 6.9 earthquake in Hualien, Taiwan and the magnitude 6.5 earthquake in Taiwan at the evening of yesterday (September 17) are earthquake groups in the same area, with the two epicenters being about 14 kilometers apart. The earthquake caused a strong tremor in Taiwan Island, and a significant tremor in coastal areas such as Fujian, Guangdong, Jiangsu, and Shanghai.
In addition, China Earthquake Network also pointed out that the 6.9-magnitude earthquake in Hualien, Taiwan is the largest earthquake this year.
According to the earthquake information broadcast robot , from January 1, 2022 to the present, my country has experienced 533 earthquakes of magnitude 3 or above, including 388 magnitude 3.0 to 3.9 magnitude 105 magnitude 4.0 to 4.9 magnitude 30 magnitude 5.0 to 5.9 magnitude 10, 6.0 to 6.9 magnitude 10, and 7.0 or above. The largest earthquakes are the magnitude 6.9 earthquakes that occurred in Menyuan County, Haibei Prefecture, Qinghai on January 8 and the magnitude 6.9 earthquake that occurred in Hualien County, Taiwan on September 18.
According to the CCTV News client on the evening of September 18, the person in charge of the earthquake survey and reporting center of the Taiwan Meteorological Department said that at 14:44 on the 18th, the magnitude 6.9 earthquake in Hualien County, Taiwan was the largest earthquake this year. The magnitude 6.5 earthquake in Taitung County, Taiwan on the evening of the 17th was the foreshi. This magnitude 6.9 earthquake was the main earthquake, but it is predicted that there will be no more aftershocks than this more than 70 foreshifts.
The person in charge said that there were more than 70 forward shocks before the main shock occurred, which is quite rare. The Earthquake Measurement and Reporting Center judged that this magnitude 6.9 earthquake was the main earthquake, because the earthquake was not large in range, and there were not many destructive structures on the geology. The following aftershocks would be smaller than the energy released by the foreshocks.
