The Focal Mechanism Solutions Of Human-computer Interaction Detection System

Earthquake focal mechanism solutions for analyzing the causes of earthquakeprediction of great significance. Make the right judgments only on theearthquake focal mechanism solutions, the stress field in the region have a correctunderstanding in order to provide more adequate scientific basis for earthquakeprediction, and raise the level of earthquake prediction.For the former classification of faults is a bit confusing, the classification ofthe existing sub-classification method of the sliding angle, slip angle, inclinationclassification triangle classification method for this case, we compare thesemethods, given its advantages and disadvantages of that activityangle classificationis the most suitable method.On the basis of previous work, given the normative interpretation of focalmechanism solutions, any person through the fault dip angle, slip angle, and N-axisangle parameters can determine the sliding type of fault by the force ofcircumstances as well as fault characteristics, the results comply with the standardsof most people.In recent years with the SH and P wave amplitude ratio to determine the focalmechanism solutions, based on the focal mechanisms of the CAP method, F_Kmethods for the study of focal mechanism has made great strides to provide goodinformation to determine the focal mechanism solutionsinformation and reference.The proceeds of the above methods of focal mechanism solutions are notnecessarily entirely correct, there may be some problems. There fore, thepreparation of software data obtained by these methods for testing. Section surfaceof six parameters and four parameters of the spindle is essentially equivalent, has astrict mathematical relationship. That is the nodal plane parameters can beintroduced spindle parameters, and vice versa from the spindle parameters can alsoexport the nodal plane parameters.Collection of five from the China earthquake cases between1966and2002earthquakes were detected, of which a total of247cases of earthquakes, the sameearthquake may have several different focal mechanism solutions, the totalearthquake mechanism solutions of391. Detection of these parameters of focalmechanism solutions, by comparing the calculation of income theoretical value ofthe original data provided by comparison, according to certain criteria to determineright and wrong. And obtained the correct data on the revised seismic informationonline, the convenience of users download the same time, the preparation of thefocal mechanism solution of the detection system software on the China earthquakeinformation online after the revision, in order to facilitate the users to download,the user the focal mechanism solutions for testing. China earthquake case detection, and the results were compared and found inthe lack of rake parameters in the description of the focal mechanism solutions ofearthquake cases in China; marked projection actually contrary to the data; or onlythe section surfacethe three parameters did not give the parameters correspondingto the stress axis; is only the data did not give the corresponding projection; andmany of the focal mechanism solutions of the section surface readings are notstandardized; description of the P, T,the elevation is sometimes used, sometimeswith the inclination, sometimes it is the angle of depression, in fact the problemsare described angle.