Tunguska (Revisited) 2

The Zetas have stated:

    Methane gas occurs naturally, a result of the decomposition
    of organic materials. Landfills must vent this or experience
    explosions. Some humans know they can light and briefly
    burn their farts. Humus or accidentally buried organic
    material is a source of methane gas, and if not vented, this
    attempts to rise, being light, and will pool if trapped. Siberia
    was once lush, a fact the carcasses of mastodons reveal, as
    their bellies are full of grass. Flash frozen and covered with
    volcanic dust, organic material lies as a potential. Where
    Siberia may appear to be a frozen wasteland, the center of
    the Earth is hot, and decomposition of trapped matter,
    proceeding slowly but over a long time, can accumulate a
    large, trapped pool of methane gas. Released due to a shift
    in the Earth's crust and encountering a raise in temperature
    sufficient to act as a spark, this would explode, with the
    size of the explosion in proportion to the volume of violently
    venting gas.

    The burn was lit by the wick traveling back along the wisp
    of methane that had been blow up and southwest by the
    prevailing westerlies over Siberia. What witnesses saw was
    the burn off of methane that had disbursed into the air and
    was not sandwiched between burning masses so that its heat
    had nowhere to go, the basis of exploding, rather than
    burning, gas bombs. The process was:

     1. Methane gas hisses out from under frozen permafrost
        that had been cracked like a sheet of glass due to earth
        stress, pre-shock to the earthquake that was recorded
        during the Tunguska explosion.

     2. Methane gas mixes with the air as it rises, followed by
        more hissing air, so that a huge cloud of methane has
        formed in the atmosphere over Tunguska, equivalent to
        all the natural gas at any given time in the US.

     3. A wick of methane that has drifted upward and
        southeast, driven by the prevailing westerlies, is sparked
        due to the air movement, the same process that causes
        lighting due to rapid air movement during storms.

     4. The lit methane burns rapidly back along the wick, the
        "meteor" that was seen, lights all the gas that is
        encountered but before all but the nearest witnesses can
        see it, those who died in the explosion, an overburn over
        gasses closer to the surface prevents heat from rising and
        an explosive situation occurs.

    The explanation that a meteor exploded above ground is
    an attempt by the establishment to avoid the methane gas,
    and thus the pole shift and shifting crust issue. Comets
    and meteors do not explode when encountering Earth's
    atmosphere. This is not what your history or science
    presents to you! If they are monstrous, they plunge to
    Earth and leave a crater such as the Gulf of Mexico off
    Yucatan. If they are tiny, they burn up in the atmosphere
    as shooting stars. If they are midsized, they burn on their
    periphery but land to be rocks picked up and examined by
    your scientists. The lack of meteor particles or dust proves
    that it was not an exploding meteor. Methane, once burned
    or disbursed into the air, leaves no trace. Meteors leave
    traces, methane does not.
        ZetaTalk™, Tunguska
            (http://www.zetatalk.com/science/s57.htm)