Earthquake Mining Machine

Description

A massive cube measuring twenty feet on a side. The sides are covered with small, irregularly spaced convex windows of a cloudy, glasslike substance. When the device is made active it can be adjusted to pull a deeply buried stratum up through intervening layers of rock. The machine can reach down four to five miles and can affect an area up to one cubic mile in area at a time. However, the machine has the unfortunate side effect of causing earthquakes when it is used.

The size and depth of the area affected are directly correlated to the magnitude of the earthquake. For this reason, mi-go tend to use such machines only in largely uninhabited areas, to avoid detection. A human unfamiliar with mi-go technology would be unlikely to be able to use the earthquake mining machine, except perhaps accidentally.