Tsunami not associated with earthquakes: a new geological theory more accoded to facts

In Indonesia yesterday (22/12/2018) a destructive tsunami occurred without an earthquake or earthquake occurring simultaneously.
Following the orthodox theory, the origin of tsunamis is related to the movements of plates of the crust that are pushed, pressed, collide and / or overlap, depending on the cases, generating fractures.
Fractures give rise to vibrations that reach the surface where they are perceived as "earthquakes" or "tremors".
When these fractures occur at the bottom of the sea, they cause disturbances and movements of the masses of water that reach the coasts as waves of great wavelength producing sudden floods in the zones contiguous to the coastline.
These «waves», which sometimes have a great destructive effect, are called «tidal waves» or «tsumamis».
Thomas Gold has a very different vision to the widely accepted beliefs about the causes of tsunamis.
According to the theory of planetary degassing, "the earth expels fluids constantly from great depths, including juvenile volatiles (ie methane or natural gas) that come from the mantle."
According to Thomas Gold, it is precisely these ascending fluids that are generated by fractures in the covering rocks as the pressure decreases and the materials become less resistant. The rocks do not fracture simply due to the release of accumulated tensions, but rather as result of gas pressure that in turn fulfills the role of lubricant for lateral or vertical movement of large rock compartments. Frequently the gas emanates at the bottom of the sea forming the so-called "hydrothermal vents".
If the gas that emerges at the bottom of the sea does so suddenly and in large volumes, it generates an elevation of the local sea level giving rise to waves that radiate from the point of emanation. When the waves reach the coast they are called tsunamis.
In these cases the tsunamis are NOT accompanied by tremors or earthquakes. Rather, they are associated with movements of underground fluids, often related to volcanic phenomena, such as the tsunami in Indonesia that had serious effects in the coastal areas without an earthquake.
According to Thomas Gold, the case of the Indonesian tsunami of December 22, 2018, would be explained by the expulsion of gases (in this case associated with volcanic phenomena (the movements of gases are both a cause and a consequence of these phenomena.
References:
1) https://www.rt.com/news/447230-indonesia-tsunami-sunda-strait/

2) "Inexhaustible? Gas and oil. ", Danilo Antón, Piriguazú Ediciones