setChartLibrary('google-chart');
setChartTitle('earthquake');
setAxisName('time_stamp','value');
plotChart('time_stamp','x_value','y_value','z_value');
setChartLibrary('google-chart');
setChartTitle('earthquake');
setAxisName('time_stamp','value');
plotChart('time_stamp','x_value','y_value','z_value');