Yes, for other reasons though. I'll provide an example to you to explain how these arrays are set up and similar to what you saw on the La Palma island map. Let's look at Oak Island, in which the Lagina brothers have been attempting to locate the purported underground 'vault' that allegedly contains hidden artifacts and bullion. The swamp is the place they have been focusing their efforts. A few years ago the Lagina brother team set up an array of detonators in the drained swamp to identify any anomalies under it. This happens to be a commonly used technology in the oil industry for locating oil deposits underground. The array of detonators were set up in an specific array spaced at predetermined points and were discharged to transmit echo data to a receiving station. Since the bottom of the drained swamp was a flat plain surface, the array was set up in a rather perfect grid of detonators. The terrain determines the array. In volcanism this type of technology works in a very similar way except the detonators are not used, but instead sensors are used that receive the vibration and amplify it for transmitting via RF to a receiving station. This is where the data is used to forecast the direction and possible opening of magma vents and for other scientific purposes to better predict volcanism.

The Crete Island sensors in Greece are set up along known fault lines. No sensors can be placed in inaccessible areas like deep crevasses for example. As a result, the array grid has the appearance of 'skipping around' as it traverses back and forth along the fault line. The topography of Crete and its terrain is very different than an active volcano. Here, erosion has not yet created the escarpments found in Crete. Extinct volcanoes may have similar topography because water, earthquakes, and time has created the escarpments there.