6.4 magnitude earthquake in Argentina
The 1863 Jujuy earthquake took place in the province of Jujuy, Argentina on 15 January at about 11:00 (). It had an estimated magnitude of 6.4 and its epicenter was at , at a depth of about .
This earthquake had a felt intensity of VIII on the Mercalli intensity scale. Its magnitude and duration made it exceptionally destructive, causing damage to the cathedral, the Cabildo (colonial government house) and precarious homes in San Salvador de Jujuy, the provincial capital.
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