code: def show_shakemap_importer(self):
          
          # import here only so that it is AFTER i18n set up
          from safe.gui.tools.shake_grid.shakemap_converter_dialog import (
              ShakemapConverterDialog)
  
          dialog = ShakemapConverterDialog(
              self.iface.mainWindow(), self.iface, self.dock_widget)
          dialog.exec_()
docs: Show the converter dialog.