[Peach]

But there could be a tsunami in another area, do you think?

[Strategerist]

If there's a tsunami at all, it will have hit Sumatra. If no tsunami hits Sumatra then the quake didn't generate a tsunami at all.

[WestCoastGal]

"But there could be a tsunami in another area, do you think?"

YES

WARNING... THIS EARTHQUAKE HAS THE POTENTIAL TO GENERATE A WIDELY
DESTRUCTIVE TSUNAMI IN THE OCEAN OR SEAS NEAR THE EARTHQUAKE.
AUTHORITIES IN THOSE REGIONS SHOULD BE AWARE OF THIS POSSIBILITY
AND TAKE IMMEDIATE ACTION. THIS ACTION SHOULD INCLUDE EVACUATION
OF COASTS WITHIN A THOUSAND KILOMETERS OF THE EPICENTER AND CLOSE
MONITORING TO DETERMINE THE NEED FOR EVACUATION FURTHER AWAY.