Research And Development Of Output Platform For The Emergency Products Of Destructive Earthquakes

As the carriers of information such as seismic location,stress regime,historical seismic activity and focal-mechanism solutions,earthquake emergency products are of great significance in dynamic tracking of earthquake situation,post-earthquake emergency rescue and earthquake scientific research.Based on the global destructive earthquakes,this paper collates the basic data such as the historical seismic catalogue of over magnitude 5 in the world,focal-mechanism solutions,crustal stress,active fault,geography and seismic zoning structure of the world.And based on the scripted drawing features of GMT6.0.0 software,an automated output system for global destructive earthquake emergency products has been developed in the integrated development environment of Microsoft Visual Studio 2015 using the C#.The system can be mass-automated within 2 minutes after the earthquake,including the location of the epicenter space,historical seismic activity,tectonic stress field distribution,the historical source mechanism around the epicenter and the historical earthquake M-T diagram and other commonly used 5 types of post-earthquake emergency products to be stored locally.In addition,considering that the existing methods of drawing stress symbols are not conducive to the automatic production of stress maps,in this paper,seven kinds of stress-symbol files are designed by using the self-defining symbol technology of GMT,which improve the method of user drawing stress maps,meets the work requirement of automatic production stress maps.After testing of actual earthquakes around the world,the system is proved stable,fast in running,and the information expressed by the emergency products is complete.Now the research results of this paper meet the actual needs of the earthquake department and have certain application value.