It's discussed in the article, including also the story of Jericho - whose fall happened around the same time frame, and could be explained by blast wave destro

It's discussed in the article, including also the story of Jericho - whose fall happened around the same time frame, and could be explained by blast wave destroying city wall (archeological evidence shows damage concentrated on one side) with thermal radiation starting fire that devastated the rest of the city. Interestingly enough, the explosion is hypothesized to cause hypersalinity in the area, which caused its abandonment for around 600 years (as it made it impossible to grow crops).