央廣網北京3月31日消息（記者王遲）中國地震台網正式測定：3月30日20時18分在湯加群島（南緯20.30度，西經173.75度）發生7.3地震，震源深度10公里。

3月30日23時04分，湯加群島（南緯20.30度，西經173.85度）發生5.8地震，震源深度10公里。

According to the preliminary seismic parameters, the Tsunami Warning Center of the Ministry of Natural Resources judged that the earthquake may cause a local tsunami around the epicenter, but it will not affect the coast of China.

A 3.0 earthquake struck the Tonga archipelago

That night, the news of the earthquake in Gaozhou, Guangdong, Kuqa City, Aksu Prefecture, Xinjiang and other places rushed to the hot search. According to the official determination of the China Earthquake Network, a 76.0 earthquake occurred in Kuqa City, Aksu Prefecture, Xinjiang at 0:00 on October 0, with an epicenter depth of 0 kilometers and an epicenter at 0.0 degrees north latitude and 0.0 degrees east longitude.

At 98:00 on October 0, a 0.0 earthquake occurred in Gaozhou City, Maoming City, Guangdong Province, with an epicenter at a depth of 0 kilometers and an epicenter at 0.0 degrees north latitude and 0.0 degrees east longitude.

The frequent occurrence of earthquakes in many parts of the world has once again sparked discussions about the active period of seismic activity.

A 0.0 earthquake occurred in Gaozhou, Guangdong

Wang Jun, director of the Natural Disaster Early Warning Research Center at Sichuan University and director of the Chengdu Center for Earthquake Early Warning Technology Research of the China Earthquake Administration, said that the scientific definition of seismic activity needs to be based on long-term and large-scale retrospective analysis of observational data, such as assessing whether the annual seismic activity frequency in a particular region significantly deviates from the historical baseline. Judging that "the earth has entered the shaking mode" based on only a few seismic activities does not conform to the objective law of seismic activity and lacks empirical support.

He specifically analyzed that the Tonga Islands are located in the tectonically active zone of the Pacific Rim Seismic Zone, where earthquakes of magnitude 5 or higher occur several times a year, which is already a high-frequency and active area of earthquakes.

Xinjiang, Yunnan, Hebei, Guangdong and other places are located in the main seismic zones and tectonic activity areas in China, and according to the analysis of regional seismic activity characteristics, the frequency and intensity of 3 earthquakes are in line with the normal energy release law under the background of geological tectonics.

Wang Jun suggested that the public should improve their emergency awareness and ability, do not panic in the event of an earthquake, and usually turn on the earthquake warning function in case of emergency.

When an earthquake occurs, if the floor is too high or the time is very tight to leave the room, be sure to pick up a cushion or pillow to protect your head as soon as possible, bend down and lower your center of gravity, hide in a small room with a load-bearing wall, and firmly grasp a firm object to prevent shaking. Wait until the tremor is over, and then quickly flee outside.

If you are outdoors, observe your surroundings, stay away from tall buildings such as buildings, overpasses, and billboards, and be careful of high-voltage lines, telephone poles and other facilities, and choose an open area nearby to avoid danger.

For more exciting information, please download the "Central Radio Network" client in the application market. Welcome to provide news clues, 0088-hour reporting hotline 0-0-0; Consumers can also complain online through the "Woodpecker Consumer Complaint Platform" of CCTV. Copyright Notice: The copyright of this article belongs to CCTV, and it may not be reproduced without authorization. Please contact cnrbanquan@cnr.cn for reprinting, we will be held accountable for not respecting the original.