"Occupational diseases" triggered by sirens
——Into the China Seismological Network Center
On the computer screen, undulating waveforms suddenly appeared, and almost at the same time, the alarm sounded.
earthquake!
Du Guangbao, who was checking the system, concentrated, and quickly judged in his heart based on experience: the distance between P wave and S wave is not too big, this earthquake is closer to us; the fluctuation range is large, this earthquake is not small.
They need to deal with it immediately.
It was late on the second day of New Year's Day on February 13.
As the deputy director of the Early Warning and Early Warning Department of China Earthquake Networks Center (hereinafter referred to as the Network Center), Du Guangbao is on duty.
The earthquake information broadcasting robot has started work and quickly issued a message: "Automatic determination by China Seismological Network: An earthquake of about 7.2 magnitude occurred near the east coast of Honshu, Japan (37.65 degrees north latitude, 141.97 degrees east longitude) at 22:07 on February 13th. ."
The China Earthquake Networks Center is an important hub for my country's national defense and earthquake disaster mitigation, gathering various important businesses such as earthquake monitoring, earthquake prediction, early warning and public services.
The established early warning platform can receive real-time shared data from multiple stations across the country and around the world, and realize automatic early warning of earthquakes affecting the country within 2 minutes and within 10 minutes globally.
Today, the average position deviation of the domestic automatic quick report has been reduced from 20 kilometers to the current 10 kilometers, and the average magnitude deviation is 0.2.
The ability of foreign earthquake early reports has been continuously improved, the lower limit of magnitude has dropped from the original 6.0 to 5.0, and the number of early reports has increased by more than 2 times.
The place where Du Guangbao is on duty is called the Comprehensive Business Hall, which is located on the third underground floor of the Network Center.
365 days a year, there are at least 10 staff on duty in the Taiwan Network Center on duty 24 hours a day.
If it is normal, even after a 24-hour shift is completed, there is no rest on the next day, and the staff still have to work normally.
Du Guangbao has worked at the Seismic Network Center for 11 years.
During the Spring Festival this year, he was on three 24-hour shifts-the 29th of the twelfth lunar month, the second day of the new year and the fifth day of the new year.
The duty lounge and the general business hall are separated by a wall.
At night, if you are fine for the time being, you can go there to sleep.
There are beds, tables, dehumidifiers, humidifiers and air purifiers in the lounge.
This is underground, and it must be dehumidified in summer and humidified in winter.
Even if you ignore the possible sound of the alarm, you can still hear the buzz of the fresh air system's due diligence.
The computer on the desk must also be on.
If a station included in the earthquake early warning system detects an earthquake, the rapid, chasing alarm will quickly knock the attendants' eardrums and pull them back to a fully awake state.
I didn't sleep well on duty.
Sometimes, once you wake up, it is difficult to fall asleep again.
Du Guangbao said that in a small survey in the past few years, 60% to 70% of employees have a nervous breakdown.
They will be more sensitive to sounds similar to the siren.
Even if you are resting at home, if such alarm sounds appear on the TV or on someone's cell phone, Du Guangbao can immediately bounce.
After the earthquake in Japan, Du Guangbao retrieved the waveform of the earthquake on the computer and, together with another on-duty officer, quickly analyzed and judged the earthquake and accurately determined its location, magnitude and intensity.
Fifteen minutes later, China Earthquake Network Express issued a formal measurement message on Weibo. This is a manual review and calibration release: February 13 at 22:07 on the east coast of Honshu, Japan (37.70 degrees north latitude, 141.80 degrees east longitude. ) A magnitude 7.1 earthquake occurred with a focal depth of 50 kilometers.
A series of emergency procedures were also launched at the same time.
Such as expert consultation.
According to the requirements, a quick judgment should be formed 30 minutes after the earthquake, and a consultation opinion should be formed within 3 hours after the earthquake.
Everyone is busy in their respective positions.
Du Guangbao and his colleagues at the Taiwan Network Center are known as the "night watchmen" of public safety.
Li Jiefei, the director of the integrated business division of the "Night Watchman" for more than 20 years, has a deeper understanding of this position.
When he first started working many years ago, the Network Center could only make quick reports on earthquakes of magnitude five or higher across the country.
At that time, there were not enough seismic stations built and the monitoring capabilities were not strong enough.
Now, thousands of seismic stations covering the whole country have been woven into a tight network.
Compared with many years ago, many things have changed: quick reports have become faster and manual intervention has become less.
Intelligence is one of the keywords for the information construction of the network center.
But at this stage, such a large and smart system is still inseparable from people.
"The people are supreme, mission is supreme, this will not change." Li Jiefei said.
The sense of responsibility still rests on the shoulders of everyone in the center of the Taiwan Network.
Here, there is still a need for someone on duty 24 hours a day to respond at any time; there is still a need for someone to silently complete the work at hand in places that the public cannot see or think.
In the early morning of the third day of the Lunar New Year, the follow-up earthquake warning of the Japanese earthquake sounded three times.
Du Guangbao ushered in the morning of another holiday while turning over and getting out of bed time after time.
Our reporter Zhang Galun and Li Yan