An earthquake; the occurrence of earthquakes, earthquake activity. Also figurative.
| 单词 | θ5061 | 
| 释义 | the world > the earth > structure of the earth > formation of features > convulsion > 			[noun]		 > earthquake > occurrence or frequency (3)		 earthquaking1883 An earthquake; the occurrence of earthquakes, earthquake activity. Also figurative. seismicity1902 The frequency per unit area of earthquakes of a particular country; the number representing this. Subcategories:— 			zone of high seismicity			(1)		  | 
	
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