I read the article looking for any mention of how they classified the recorded events as bomb blasts versus impulses from seismic surveying for oil and gas. That region has been very active since at least 2015 with seismic surveys and in 2023, the period covered by the article there were several crews operating.
I know that seismic survey acquisition should be easily identifiable because those shots occur at precise intervals during the survey and continue all day long with no breaks unless there is an equipment failure or other reason to shut down. A 10 second interval would be one common example.
The damages from activities like this are terrible. Using explosives as a seismic sources was banned in the late 1970's I think due to harms done to marine mammals and organisms and the environment in general. Since then, airguns firing compressed air have been the dominant marine seismic source. Depending on the bandwidth of the bubble created and the volume of the airgun array they can also be extremely destructive to marine mammals like whales and porpoises so crews employ biologists as whale watchers in those areas where activity can be expected so that the effects on whales can be minimized.
It is still a serious issue in offshore exploration though.
Bomb fishing is something I would expect to hear about from some redneck coon-ass from Lousyana. I guess that people everywhere figured out how to stun fish to improve catch quantities and some use that as the primary method now. Maybe if deeper waters weren't fished out they could just go further offshore. Once you have foreign fleets dragging up everything in their paths then the only fish left are around the reefs.