This slide appears to be a quick clay type event and that it occurred on 17th October at Port Chibatao in Manaus in Brazil. Note that this is an inland port in the centre of Brazil on the Amazon.
The slide was apparently triggered by a backhoe working an on exit ramp at the site, according to an article. This small level of disturbance would be enough to start a quick clay slide under certain circumstances. The loss of those cargo containers, mostly full of electronic goods according to the article, is going to be very expensive. It appears that two workers were killed, but this is unconfirmed.
source: http://daveslandslideblog.blogspot.com/2010/10/amazing-landslide-video-from-manaus-in.html