Error-Prone Banks or High-Risk Banks?

In recent days, government officials and regulatory authorities have reportedly announced that the activities of some unhealthy banks will be terminated. 
The idea that banking supervision should be strengthened by giving more powers to supervisory authorities who should exercise those powers in a timely manner should be supported. But the important question is what is meant by an unhealthy bank? A bank that has had many errors? Or a bank that takes more risks?