For what it's worth, the article actually says the magnitude was 8.7 (at a depth of 33 kilometers), not 8.9 as in the title here—not that it matters much.
I hope it doesn't cause as much damage as the one in 2004!
The one in 2004 was 9.1. Quite a difference considering that scale is logarithmic. Since then lots of infrastructure and processes are created to evacuate people and issue tsunami warnings. So people are at least better prepared.
A 8.7 quake can still cause a devastating tsunami. In addition to the strength of the shocks, the directionality of the energy release (horizontal or vertical) is crucial.
I hope it doesn't cause as much damage as the one in 2004!