System and method for real-time analysis of local earthquakes

Abstract

The invention relates to an in-situ earthquake real-time analysis systemme and method, and a storage media thereof, for real-time analysis of arrival wave acceleration signal at the beginning of an earthquake at one detection site. The system comprises an embedded operation host and a signal preprocessing module which anayzes the hardware for the arrival wave acceleration signal; the embedded operation host can determine whether the earthquake is an earthquake event according to the earthquake event pre-determination logic; the arrival wave acceleration signal is converted into the earth surface speed and the earth surface displacement of the arrival wave so as to obtain a peak earth surface displacement; the embedded operation host calculates the earthquake rupture time parameter according to the earth surface speed and the earth surface displacement of the arrival wave so as to calculate the earthquake magnitude; and the embedded operation host calculates the epicenter distance according to the peak surface displacement adn the earthquake magnitude so as to calculate the peak surface acceleration of shear wave of the earthquake at the detection site.

Description

technical field [0001] The invention relates to earthquake prediction technology, in particular to an on-site earthquake real-time analysis system and method thereof. Background technique [0002] One of the theories of earthquake prediction technology is the physical characteristics of the P-wave (P-wave, primary wave or pressure wave) whose wave velocity is greater than that of the S-wave (secondary wave) (P-wave is about 6-7km / s; S-wave is about 3-4km / s) s), at the moment when the earthquake occurs, measure the small vibration brought by the P wave to estimate the impact of the subsequent S wave. P wave is a kind of density wave or longitudinal wave, and it is also one of the body waves transmitted through the interior of the earth during an earthquake. When transmitting, the vibration direction of the medium is parallel to the transmission direction of the shock wave energy; P wave has the fastest Speed ​​of propagation, but not as destructive as S waves. The speed of ...

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Problems solved by technology

However, the impact of earthquake shock waves on areas close to the epicenter is higher than other areas. Relying on this kind of wide-area strong earthquake early warning system cannot achieve the effect of early warning and evacuation

[0004] In addition, although existing studies can provide specific calculation theories for the prediction and simulation of seismic waves, these theories lack a large number of experimental verification and correction when applied to on-site earthquake prediction, and cannot achieve the expected accuracy.

Furthermore, for the accurate prediction of seismic parameters with short-time window data, there is currently no suitable hardware architecture suitable for the signal processing and calculation requirements of on-site earthquake prediction. General computer systems cannot properly process signals or provide real-time high-level calculations efficacy

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