Here is the link to view the grid pattern of earthquakes for La Palma over the last 48 hours. You will need to zoom in on La Palma. I am unfamiliar with how seismic activity is measured in real time. The grid suggests these are not naturally produced, but again, not my field. Thoughts? https://www.emsc-csem.org/Earthquake/Map/gmap.php
I discovered this information this morning from a video posted last night on Bitchute. Here is the link to his video https://www.bitchute.com/video/HOy53HLRTMzN/
After a quick web search, this article claims the grid pattern is due to rounding the latitudinal and longitudinal values to the nearest accurate decimal point. This honestly makes sense.