The focal depth of the 2.1-magnitude earthquake in Tangshan City, Hebei Province is 12 kilometers

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 The focal depth of the 2.1-magnitude earthquake in Tangshan City, Hebei Province is 12 kilometers


(function() {(window. Slotbydup = window. Slotbydup| []). Push ({ID: u5811557, container: ssp_, async: true});}) (); source of this paper: Wang Ning, nb12468