Earthquake early warning method and device based on high-frequency GNSS, electronic equipment and storage medium

Abstract

The invention relates to an earthquake early warning method and device based on a high-frequency GNSS, electronic equipment and a storage medium, and the method comprises the steps: obtaining observation data collected by a plurality of GNSS sites in an earthquake early warning network; according to the observation data and a pre-established high-frequency GNSS displacement waveform database, determining the similarity between the observation data and each group of high-frequency GNSS displacement waveforms in the high-frequency GNSS displacement waveform database; according to the similarity, determining a group of high-frequency GNSS displacement waveforms with the highest similarity from the high-frequency GNSS displacement waveform database, and taking the group of high-frequency GNSS displacement waveforms as target high-frequency GNSS displacement waveforms; and determining early warning information of an earthquake based on a target earthquake fracture model corresponding to the target high-frequency GNSS displacement waveform. Through the scheme disclosed by the invention, the earthquake early warning can be carried out by utilizing the rich earthquake information contained in the earthquake fracture model, the information such as the earthquake epicenter, the earthquake magnitude and the fracture direction can be early warned, and the earthquake early warning effect is improved.

Description

technical field [0001] The present disclosure relates to the technical field of earthquake early warning, and in particular, to an earthquake early warning method, device, electronic device and storage medium based on high-frequency GNSS. Background technique [0002] Under the circumstance that earthquake prediction is difficult to achieve in the short term, earthquake early warning has become a key technology to reduce earthquake disasters. [0003] At present, earthquake early warning has been established and put into use in many countries, but most of the currently used earthquake early warning systems are based on traditional seismometers and strong earthquake instruments. For example, my country is preparing to put into use the national earthquake early warning system. [0004] However, there are two problems in the traditional earthquake early warning system based on seismographs and strong seismographs that need to be solved urgently: one is the problem of magnitude ...

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Problems solved by technology

[0004] However, there are two problems in the traditional earthquake early warning system based on seismographs and strong motion instruments: one is that the signal recording limit of seismographs and strong motion instruments causes The problem of magnitude saturation is that the magnitude is estimated to be low when encountering a large earthquake; the second is that the point source approximation of the earthquake makes it impossible to judge the rupture direction of the large earthquake, thus weakening the actual effect of early warning

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