地震震级 dìzhènzhènjí earthquake magnitude Origin Definitions Defs Strokes Stroke Words Sentences Sents 地震 dìzhèn noun earthquake earthquake; to shake or undergo an earthquake; movement of the earth's crust caused by tectonic shifts, volcanic activity, or explosions震级 震級 zhènjí earthquake magnitude The scale or degree used to measure the size of an earthquake; often an abbreviation for 地震震级 dìzhènzhènjí.