A certain location has experienced several earthquakes in past centuries. What can be said about future earthquakes in this region?

Future earthquakes are unlikely because all the weak rocks in that location are broken and only stronger ones are left.
Future earthquakes are likely because underground stress builds up in similar locations.
Future earthquakes are likely because rocks in some places on Earth are generally weaker and liable to break.
Future earthquakes are unlikely because all the underground stress in that location has been