Would climate change result in an increase in seismic activities?
Dilation of the Earth's surface due to atmospheric temperature changes will be negligible due to the amount of temperature increase.
Stronger precipitation will not directly lead to an increase in seismic activity. The force of the raindrops will be too small, even over a prolonged periods of time. If stronger precipitation were to occur, the most likely result will be an increase in soil erosion and landslides.
The reduction in glacial mass and the increase in water depth will change ground surface stresses. Where there will be an increase in the depth of water there will an increase in the overburden pressure produced by the water. This may cause an increase in localized seismic activity in some areas.
The loss of glacial mass will lead to post-glacial rebound in affected areas, predominantly: Antarctica, Greenland, Canada, Alaska. As the affected areas adjust to the lack, or reduction, of overbearing (overburden) pressure previously supplied by the glacial ice there will be an increase in seismic activity in those regions.