Not only your farmland infact in India, dams that are constructed above the fault zone are attracted political issue in these days. In my opinion the interior changes impact on the surface after a time delay of approximately 2 to 11 days, which I have proved many times. These changes are identified by the sunlight and easily decoded in advance. Just I posted such a change pertains to Banda Sea area which may going to experience 7 to 8+M I suspect is an example. Let us watch.

Shan