Climate change?
There will be some contribution to atmospheric makeup, of course. Whether that increases or decreases current insulation factor depends on what the cloud makeup is, where it rises to, how far it spreads, and how long it stays aloft.
This has been thoroughly studied and is well known to geologists, especially in Northern Europe where changes can occur over human time scales.
I remember watching a documentary about a landslide disaster that occurred because clay saturated by salt water had lifted above sea level due to GIA and the fresh rainwater had washed the salt out. Clay without salt ions is more liquid and eventually moved catastrophically.
.. and pretty much why I worded the first line of my comment above as I did.
Sea level changes, glacial retreats, etc will all change crustal pressures and impact the frequency, placement, and nauture of volcanic activity in times to come.
Not a lot of that in Ethiopa for now though (to the best of my current "haven't specifically looked at the map for this" gut feeling).
Stay Healthy!