[fella]

In the oil patch they have these shaker trucks that send sound waves down to reflect back and map rock formations and locate oil and gas. They can be modified to create localized earthquake effects, it has happened by accident in the past. It'd be kind of cost effective get rid of hamas and bury them all at the same time.

[SeeSharp]

In the oil patch they have these shaker trucks...

What those trucks would really be useful for is mapping where the tunnels are. Unfortunately, in order to record the reflected shock waves they require long cables stretched out in every direction with geophones connected every so many feet.