Yes it is possible and increasingly likely. Our Planet is a system. That means it exists in equilibrium with all the components of itself. If not then it becomes a state of exceeding ‘critical mass’ and is therefore it is not a system and only a set of totally ‘impossible to forecast’ sets of masses acting only in relation to the explosive forces produced and not in relation to each set of equilibrium(s). The state of critical mass is such that the direction of the energy release cannot be predicted by time.
A simple example being a car engine which overheats. The resulting increases in pressure whilst overall can be calculated are not able to be forecasted as individual forces of each component unless each separate mass is tested at each increase in temperature and pressure. Therefore, will it be the radiator that will fail, the cylinder head that will crack, the hose that will blow off etc.
The Planet as a system is constantly contracting and expanding within a set of forecast-able parameters. We know that as the centre of the Planet cools by allowing heat to escape through the surface of the Planet it has an effect on the layers of the Planets construction – in effect a composite lamination of materials – the strata et al.
There are times when the pressure created cannot be contained within the Earth’s physical environment and hence earthquakes and volcanoes.
The Planet’s ability to retain and release heat is being affected by the activities of man. Heat sinks are being torn down – the Amazon. The effect of cooling masses is being reduced – the increases in sea temperature. The pressure systems of Planet Earth’s environment are being made to interact in a way that effects the heat loss/retention or the Earth’s physical matter. The Planets’s cooling masses the Artic and Antarctica are also losing cooling area which changes the rate of heat loss and heat retention of the Earth’s physical matter.
Some will say its only 1 or 2 degrees the Earth can cope. I say the difference between a car overheating and not overheating is .00001 of a degree and the rate of that overheating is not forecastable.
Earthquakes, Tsunami’s and Volcanic interactivity will increase in intensity and frequency. Each set of events increasing the rate of reaction of the next until we are in a constant state of unpredictable climate change.
I have warned the USA of this ‘state of change’ being used by a hostile force to control key parts of the US and other Nations as a Trojan Horse theory – but they have their heads in the sand.
So in summary yes human activities will cause an Earthquake.