1888 Río de la Plata earthquake
1888 CE.
Shown on the map at -34.600°, -57.900°.
The 1888 Río de la Plata earthquake occurred on 5 June measuring 5.5 on the Richter scale, and shook the upper Río de la Plata at 3:20 UTC-3. The epicentre was located 15 kilometres (9 mi) southwest of Colonia del Sacramento (Uruguay) and 42 kilometres (26 mi) east of Buenos Aires (Argentina), with a hypocentre at a depth of 30 kilometres (19 mi).
Text from the Wikipedia article 1888 Río de la Plata earthquake, licensed CC BY-SA 4.0.