The time is coming when Jesus Christ Himself will tell His people plainly when this to happen. His people will be alerted to shift away from areas of danger before this time of upheaval starts and animals and birds will try to leave the danger areas. Quoting: Anonymous Coward 6972181
The Servant of the Lord
1“Here is my servant, whom I uphold,
my chosen one in whom I delight;
I will put my Spirit on him
and he will bring justice to the nations.
2He will not shout or cry out,
or raise his voice in the streets.
3A bruised reed he will not break,
and a smoldering wick he will not snuff out.
In faithfulness he will bring forth justice;
4he will not falter or be discouraged
till he establishes justice on earth.
In his law the islands
will put their hope.”