Kilauea Eruption 12/23/24

[MyManao]

My problem is understanding what diurnal temperatures have to do with the magma deep underground.

In other words you are not comprehending what's being said..

We're talking about a meter's readings. Not magma.. other than tangentially.. and the meter is in a bore hole 3 - 4 meters underground, in rock that is effected by the daily heating and cooling cycles of the atmosphere. A meter that measures the tilt of the ground it is in and from which changes in magma volume are inferred by the tilt signal recorded. As such the atmospheric influences are seen, sometimes, in the record of the tilt as noise. We're talking about the noise..