On April 7, Beijing time, a mysterious loud noise appeared in Ningbo, Zhejiang Province, which appeared twice before and after, and rushed to the national hot search list for a time, causing concern and discussion among netizens.
The incident was first announced by a netizen whose IP address is located in Beilun District, Ningbo City, Zhejiang Province. He said that at noon, he heard two loud noises. "There was only a loud noise and the window slammed shut." Later, many local citizens also said that they heard voices. At that time, the glass was shaking, and it was obvious that the sound came from high altitude, similar to a huge explosion.
On April 8, this incident finally got a response from a certain department. It is understood that a staff member of the Beilun District Government said that after their collaborative investigation and verification with other departments, the loud noise at noon in the local area was actually a sonic boom generated when the plane was flying at super high speed.
Other causes of loud noise
1, the accident will produce a lot of noise.
Loud noise usually means huge energy release, and our first thought may be explosion. Chemical plants are indispensable to a city, and fuel chemicals will definitely make a loud noise when they explode. However, according to the notice of these urban emergency management departments, no production safety accidents have occurred.
2. The earthquake happened
There were loud noises when the earthquake happened, even before and after the earthquake. The appearance of loud noise is not uncommon, but the loud noise for unknown reasons is really mysterious. A few weeks ago, a magnitude 3.4 earthquake struck Australia. According to some citizens, a loud noise was heard during the earthquake.
3. Meteorite falling
There was a loud noise when the meteorite fell, and a flash appeared in the Russian night sky, followed by a huge explosion. The whole process lasted about 8 seconds. Although the incident happened after zero, the explosion was as bright as day, and some residents were awakened and found the scene at that time.