Congo Canyon Turbidity Current 

I suspect many of you have seen this on the BBC website, but HERE it is for the rest of us. The turbidity current current occurred on the 14th January 2020 and swept 1,100km into the Atlantic breaking a couple of submarine cables.

The event occurred a couple of weeks after a 50 year flood on the Congo river. This dumped a vast amount of material at the canyon head. There is speculation about why there was a pause between the flood and the turbidity current. The avalanche started at low tide, when the pore pressure inside the sediment is at its highest.

The Congo Canyon has many instruments along its length so the speed of the current could be measured.