Liquefied natural gas is the natural gas cooled to the extent that it condenses which takes place at -162 Celsius and atmospheric pressure. The gas liquefaction reduces the volume by approximately 600 times, depending on the molar mass of the gas. This process is the most economical way of storing the fuel where there are no other forms of storage, as well as the most interesting to transport it over long distances. The code was developed in EES platform and, first, it models mathematically the spillage and the fluid mechanics of the flow of a cryogenic pool on quiescent and sheltered waters of a marine terminal, after the LNG carrier has been suffered collision, perpetrated by another vessel. Immediately after the stroke/spillage, a pool fire is supposed to occur with turbulent diffusion flame. The ratio of the length of the visible fire column to the diameter of the circular pool that sustains the column’s combustion in the sea, and its average surface emissive power, are modeled varying with the height along the axis of the thermal plume. The thermal radiation generated by the temporal flame average surface emissive power is attenuated by the environment with full hemispherical transmittance of the atmosphere. If direct use of the code is adopted, following propagation through the atmosphere, the radiation is supposed to reach vulnerable resources around a marine terminal, distant to a certain length from the tear perpetrated on the ship’s hull. International standards establish maximum acceptable levels of thermal radiation striking on these vulnerable resources, located at certain distances around the terminal, thus defining exclusion zones. With the results here obtained it is possible to define the location of vulnerable resources in relation to the LNG terminal, allowing the adoption of mitigation and/or compensatory measures by authorities and communities to reduce the effects of this radiation, providing quantitative subsidies that could enable the implementation of the terminal.