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1970 in science
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==Earth sciences== * January 4 β The [[1970 Tonghai earthquake|Tonghai earthquake]] (7.1 {{M|w}}) occurs in [[Tonghai County]], [[Yunnan]] province, [[China]], killing an estimated 14,621 and injuring 26,783.{{Citation needed|date=March 2024}} * May 24 β Drilling on the [[Kola Superdeep Borehole]] begins on the [[Kola Peninsula]] of [[Russia]].
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