I thought this was a good 3-D diagram of oceanic convergence and divergence. The 'slicks' represented are naturally occurring and of biological origin. Click here to visit the Nasa source website.
The dark blue areas represent primary regions of upwelling. Click on the map to visit the UN Ocean Atlas source website.
Underwater Landslide
This is the type of underwater landslide that can generate a tsunami. The diagram is by Zeke Smith, click on the picture to visit the website. It is from an article in a California science magazine discussing tsunami hazards.
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