If a tsunami in Chaiyaphum. I still feel scared and shocked. Because of the potential tsunami in Chaiyaphum is minimal. Little or no chance that will happen at all.
If a tsunami occurs in Chaiyaphum I still feel fear and panic because the opportunity to tsunami in Chaiyaphum is extremely rare or virtually no chance that will happen.
If there was a tsunami in Chaiyaphum I felt very scared and frightened because the opportunity to be a tsunami in Chaiyaphum, there are very little or almost no chance that will happen.