Proof of successful repairs

Presumably due to gas exploration induced earthquakes the now more than 400 years old castle "Fraeylemaborg" was breaking apart the recent years. To gain an empirical correlation between the breaking up of the castle and the earthquakes we mounted a sensor in the foundations of the west wing.

The repairs (Credits to Foto Okkie Smit)

Immediately on mounting of the sensor we registered the tell tales signs of an active subsiding and breaking up foundation.  From February 2015 until December 2015 we monitored the stability of the foundations while preparations for repairs where made. In December 2015 and January 2016 the repairs where executed. The constructive works caused tremendous vibrations. Directly upon the repairs the foundations and wall where stabilized and they still where perfectly stable up until this article was written.

The graph below is a beautiful showcase, clearly showing all periods, movements, vibrations and results in a single image. 

Evidence of subsidence and successful repairs