This article was first published on July 29, 1976.Quake rocks Northern Chinaby Staff ReportersHeavy casualties and severe damage to industrial plants and property were feared when the strongest earthquake for 12 years struck the industrial belt of northern Hopei Province early yesterday (July 28, 1976) morning.The tremor was followed by a series of aftershocks and 16 hours after the first quake, an aftershock of almost the same intensity struck the same area, causing further damage and...