interesting amm, it remotes like this, methane hydrates resist electricity better than water does , our oceans experience a greater proportion of electrical storms than over land

if the methane hydrates are now in the water instead of on or below the ocean floor it could effect the conductivity of sea water as in form it less conductive

if that is true, the electrical storms will still take place but less electricity will be conducted into our oceans, our oceans will be less of an attractor of charge (electricity)

gravity is formed from electro-magnetic effect

the charge from the electric storms that is no longer attracted to the water will manifest in our atmosphere as increased scale and frequency of hurricanes and the diminished charge now not entering our earths crust (surface) via our oceans will reduce gravity (weight) forming more earthquakes