The explosion of a black hole is a highly speculative and currently theoretical concept. According to our current understanding of black holes, they are regions in space where gravity is so strong that nothing, not even light, can escape. This happens because the black hole's intense gravity has compressed a massive amount of matter into a single point called a singularity. However, if we imagine a scenario where a black hole were to "explode," it would likely involve the release of a massive amount of energy. This energy might be released through various mechanisms, such as the evaporation of the black hole due to the emission of Hawking radiation. Stephen Hawking proposed that black holes can gradually lose mass and eventually dissipate over an extremely long period. If a black hole were to suddenly lose a significant amount of mass or experience some unexpected event causing a release of energy, it could potentially have significant consequences for its surroundings. The explosion could release an enormous amount of radiation and high-energy particles, causing devastation in its vicinity. However, it is important to note that the concept of a black hole explosion is still purely speculative, and our understanding of physics and the behavior of black holes is continually evolving.

The concept of a "preonnova" or a hypernova made of preons is not a well-established scientific theory. Preons are hypothetical particles that are theorized to be even smaller than subatomic particles like quarks. While the idea of preons has been proposed in some theoretical physics models, they are currently speculative and have not been observed or confirmed. Similarly, a hypernova is a theoretical and extremely energetic explosion that could occur at the end of a very massive star's life. Hypernovae are thought to release an incredible amount of energy and could potentially result in the formation of a black hole. Combining these speculative ideas, if we were to imagine a situation where a hypernova made of preons occurred, it would imply an explosion with tremendously high energy levels involving these hypothetical preonic particles. The result could be the release of an enormous amount of energy and potentially the formation of a black hole. The black hole's mass might contain the preons, but the exact behavior of these particles within a black hole is not currently well understood due to the extreme conditions involved. It is important to note that these concepts are purely speculative and currently lie at the forefront of theoretical physics. They go beyond our current experimental and observational capabilities, and further research and scientific advancements are necessary to validate or discard these ideas.