Assessment of the effectiveness of the early warning system for severe earthquakes in a rare network of seismic stations

Authors

  • Alisher Kh. Ibragimov Mavlyanov Institute of Seismology of Academy of Science of the Republic of Uzbekistan; 100128, Uzbekistan, Tashkent, ul. Zulfiyakhonim, 3 https://orcid.org/0000-0002-7190-0116

DOI:

https://doi.org/10.33408/2519-237X.2020.4-3.280

Keywords:

earthquake, early warning, period, soil displacement rate, acceleration

Abstract

Purpose. Development of an early warning system for strong earthquakes in a rare network of seismic stations.

Methods. Research is carried out in three directions: operational automatic generation of isoseist maps after the event, creation of accelerometers with the ability to send data to a central server with subsequent calculation of the expected intensity of the oscillations and the waiting time of the event, and the development of a device that continuously calculates the oscillation spectrum from the vertical component and gives a signal upon receiving a wave with a period of more than 2 s and the magnitude of the accelerations of a certain value.

Findings. The dependences of the magnitude of the earthquake on the period of the P-wave and the peak amplitude of the displacement of the soil are obtained. A system for automatically constructing maps of isoseist strong events has been created, a server has been launched to collect data from remote stations, which sends a warning about an expected earthquake via telegram-bot.

Application field of research. The results obtained make it possible to implement a warning system about strong earthquakes, which can be used in the Ministry for Emergencies to assess the situation, protect critical facilities (dams of large reservoirs, nuclear power plants, etc.) quickly.

Author Biography

Alisher Kh. Ibragimov, Mavlyanov Institute of Seismology of Academy of Science of the Republic of Uzbekistan; 100128, Uzbekistan, Tashkent, ul. Zulfiyakhonim, 3

Laboratory of Experimental Seismology, Head of Laboratory; PhD in Physical and Mathematical Sciences

References

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Published

2020-07-20

How to Cite

Ibragimov А. Х. (2020) “Assessment of the effectiveness of the early warning system for severe earthquakes in a rare network of seismic stations”, Journal of Civil Protection, 4(3), pp. 280–286. doi: 10.33408/2519-237X.2020.4-3.280.