里氏7级地震an earthquake of magnitude 7.0 on the Richter scale;

　　余震aftershock;

　　震级magnitude;

　　震中epicenter;

　　地震带seismic zone;

　　地震灾区earthquake-stricken/hit region;

　　救援队rescue team;

　　赈灾disaster relief efforts;

　　国家地震局the State Bureau of Seismology