Woke, marxist, libtard news organization NPR, who totally hates Trump and America GREATNESS published an evil and dishonest story that used an unproven concept called “math” such an old fashioned word, even older than groceries, so out dated, to lie about how great our full payload of BOMBS are, totally the best BOMBS, soldiers came to me with tears in their eyes and said “sir thank you for the bigger bombs, under Biden and Obama we only had weak sissy rubber bombs that didn’t explode”.
TLDR: depending on geology and the type of rock the MOP may only reach a depth of 8 meters and changes in the geology could deflect and absorb the shock waves.