Design And Implementation Of Earthquake Deformation Simulation Information System Based On Android

It is of great significance to obtain the surface deformation and vibration of the earthquake area within a short period of time when the earthquake occurs,to assess the degree of damage in time and to cooperate with the development of earthquake relief work.In recent years,space geodetic technology has been widely used in the field of seismic deformation monitoring.The seismic coseismic deformation map obtained by processing the Interferometric Synthetic Aperture Radar(In SAR)data can intuitively show the surface deformation caused by the earthquake to provide a reference for judging the disaster situation in the earthquakegenerating area,but due to the lag in data acquisition,it is often impossible to obtain the coseismic deformation in a short time after the earthquake occurs.With the update and development of smartphones and 5G communication technologies,earthquake information can be obtained through smartphones,but most of the existing earthquake information APPs do not support refined multi-condition earthquake information query,and the displayed results of earthquake disasters are relatively simple.In response to the above problems,this paper proposes an algorithm for calculating coseismic deformation by combining source parameters,empirical formulas,and elastic dislocation models.The Android Studio development tool is used to develop functions including condition screening,earthquake quick report,earthquake map,and earthquake details.The application interface.the data background including seismic data acquisition and simulation deformation calculation program is built using Python language and Selenium technology.Flask is used as the background service framework to realize the data interaction interface between the application interface and the data background,and the seismic deformation has been developed.Analog Information System,referred to as the Codefmap App.The Seismograph APP has the following functions:(1)Earthquake catalogue query at any time period and in any range around the world.The Codefmap APP uses Python crawler technology to obtain and parse USGS seismic data,and realize multi-condition earthquake catalog query.Compared with the earthquake catalog query conditions and query results of the earthquake early warning assistant APP,it shows that the Codefmap APP expands the earthquake query function of existing mobile applications.(2)Timely and reliable acquisition of strong earthquake deformation simulation results.The Okada model and empirical formula are used to realize efficient and fast calculation and generate deformation simulation results of the seismic region.By comparing with the focal mechanism solution,the acquisition of In SAR data,and the release time of deformation results;compared with the real coseismic deformation data in multiple earthquakes;compared with the earthquake impact results of Shake Map and the earthquake early warning assistant APP,it shows that the deformation simulation results of the Codefmap APP are timely and reliable,and can more accurately express the deformation characteristics of the earthquake region,and provide data reference for early earthquake research and judgment and earthquake rescue.This paper has 29 pictures,13 tables and 75 references totally.