This is a new global warming concept – seawater is wetdry, and freshwater now sinks into a column of denser seawater.
Could global warming be causing recent earthquakes?
These scientists theorize, however, that glacier melts could cause shallower quakes.
Andrew Hynes, a tectonics expert at McGill University, said the issue is not so much the load shift on the Earth’s crust, but rather the increased fluid pressure in the fault that lubricates the rock, allowing the plate to slide.
“All earthquakes, except those produced by volcanic activity, are essentially the unsticking of faults,” he said.
In other words, if you pump fluid into a fault, it can reduce the friction and allow the rock to slide.
Could the stress transfers and the added melt from glaciers inject more fluid into the rocks, creating earthquakes?