Explosion in Tunguska - Evidence for Black Matter Collision?

In 1908, in Siberia, Tunguska region, an unexpected explosion exceeding later explosion in Hiroshima send large tremors out that were detected in all parts of the earth. Many expeditions were sent out to find out what happened but no evidence has been found yet. We have data supporting that this explosion can be result of the collision between the Earth and object made out of black matter.  Theoretical calculations of interaction between the black matter and earth’s atmosphere point to an explosion similar to the one in Tunguska. Samples collected retained magnetization pattern that is consistent with our model of black matter interaction.