Will the mobile phone automatically call the police during the earthquake?

Generally speaking, turn on the mobile phone earthquake warning, and the mobile phone will automatically pop up an alarm when an earthquake occurs.

In China, the State Seismological Bureau has established an earthquake monitoring and early warning system, including SMS early warning, radio and television early warning and mobile phone early warning.

If the mobile phone earthquake warning is turned on, the mobile phone will receive earthquake warning information, including the time, place and magnitude of the earthquake. The location of different areas from the earthquake source is different, so the time of early warning is also different.

Since the end of last century, China has carried out preliminary research on earthquake early warning technology, and achieved certain results in real-time processing of observation data of seismic network and strong earthquake network, real-time detection of earthquake events, real-time earthquake location based on limited station records, magnitude determination based on initial information of ground motion and real-time prediction of ground motion field.

Earthquake early warning scheme:

There are two kinds of earthquake early warning schemes. One is based on the earthquake quick report system, that is, using the monitoring stations closest to the epicenter in the earthquake observation network to quickly determine the three elements of the earthquake (time, place and magnitude), and then using modern communication and the propagation time of destructive seismic waves to give people far away from the epicenter a certain amount of time to take measures.

This scheme (network early warning) determines the basic elements of earthquakes and can send early warning to distant areas. However, the blind area of this scheme is relatively large, and multiple monitoring stations are needed to determine seismic information.

Another scheme is single-point earthquake early warning, which uses the characteristics of P-wave earthquake and shear wave to carry out earthquake early warning. Its workflow is that the seismograph at this point continuously monitors the vibration, and if strong longitudinal waves are detected, it will generate an early warning to warn that destructive seismic waves are coming. This scheme only needs one monitoring station, and the blind area is small.

But it can only be used for early warning, and its application has certain limitations. A better scheme is to combine network early warning with single-point early warning to reduce blind spots and increase early warning range.