Why don’t earthquake warnings sound? Why are earthquake warnings delayed?

Earthquake early warning apps can serve as warnings when earthquakes occur. So since they serve as warnings, why can’t earthquake early warnings be used to predict in advance? Why is there always a delay in sending warning messages? Let’s take a look and find out more below!

Why earthquake early warning does not give the alarm

Why earthquake warning cannot be forecast but only early warning. This requires first understanding what forecasting and early warning are. The difference between forecast and early warning is that one is before the event and the other is after the event. Why don't we use safer forecasts instead of early warnings? This is because of the instantaneous and sudden nature of earthquakes.

Earthquake forecasts are the same as weather forecasts, which are forecasts and broadcasts before disasters occur, so that people in disaster areas can prepare in time and reduce casualties and property losses. In order to scientifically predict earthquakes, the three elements of earthquake time, location, and magnitude must be included in the forecast.

Earthquake alarm is a device that can monitor the occurrence of earthquakes and notify the alarm in a timely manner. By monitoring the seismic waves generated during an earthquake, the progress of the earthquake is notified, and light and voice prompts are used to warn of the occurrence of the earthquake.

Earthquake early warning is also a means of preventing earthquake disasters, but it is not a warning beforehand, but a reminder after the earthquake occurs, when the earthquake reaches the hypocenter in ten or twenty seconds. The principle is to use the principle that earthquake P waves (harmless waves) propagate faster than destructive transverse waves (S waves) and surface waves, and that electromagnetic waves propagate faster than seismic waves, to issue earthquake warnings to surrounding disaster-stricken areas within a time difference. An earthquake is coming, remind people to take precautions.

Why are earthquake early warnings received delayed?

Because seismic waves are transmitted from underground, and detection also takes time.

It is impossible to predict earthquakes in advance. Before the seismic waves reach the city, the seismic wave detection stations in the suburbs will receive the seismic wave information. However, the seismic waves propagate very fast, and the signals will be sent out after calculation by the monitoring stations. It is estimated that some distance has been traveled by that time, and the interior of the earth is uncontrollable, and humans have no way to predict earthquakes so early.

Why does the earthquake warning display a network error?

1. Confirm whether the network is connected.

2. Check whether the network connection and port are plugged in tightly.

3. Re-configure the network and replace the access point. ?

4. Reasons for transmission equipment: the responsibility of the operator's computer room and transmission medium (line) unit.