This is the location. It is close to the French coast.
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5$\begingroup$ Likely an artifact of the way the data was collected or the imagery was made. $\endgroup$– SpencerCommented Feb 6, 2022 at 14:30
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Since this is the "satellite view" and the features don't show up in a bathymetry map, they are most likely surface artifacts from something like the large cruise ships that frequent the French Riviera. (The depth at this location is about 2,700 meters.)
Here is the base sonar map of the ocean floor at those coordinates, from NOAA's National Center for Environmental Information's bathymetry data viewer.
answered Feb 7, 2022 at 16:22
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$\begingroup$ Those blips appears to be 1km by 2km so they'd have to be pretty big cruise ships. And a lot of them. It could just be a processing artifact. $\endgroup$– SpencerCommented Feb 7, 2022 at 20:53
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$\begingroup$ @Spencer Yeah, all I can say is they're not features on the ocean floor. There's some texture in this part of the Mediterranean, but not much. I see another cluster of this spots off the northeast coast of Corsica and some near the boot heel of Italy, but not really where you'd expect ships to be, and nothing on the terrain maps. $\endgroup$ Commented Feb 7, 2022 at 21:58
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$\begingroup$ Sometimes bathymetry maps have dots where soundings were taken. Google uses a jigsaw puzzle of different data sources. $\endgroup$– SpencerCommented Feb 8, 2022 at 0:07