Las Palma Volcano & earthquake pattern?

Hello,

I’m a curious soul and was recently looking at the Las Palma volcano and it’s earthquakes.

I noticed the pattern seems very symmetrical, like an organised grid pattern.

Please have a look yourself here-

https://www.emsc-csem.org/Earthquake/Map/gmap.php

Is this normal? I looked at other patterns of earthquakes across the world but couldn’t find a similar pattern (Asia, California etc).

Kind regards

Mike Davis