Richard,
It was a concern initially,of course.
We watched the progress but knew when no wave was detected in Guam there would not be a problem.
Some of the locals went down to the beach to watch ,but in the morning reported nothing.
The biggest issue here is ignorance.
With previous earthquakes here in vanuatu we have watched in horror as the locals,pack up their belongings and head up to the hills 2-3 hours after an earth quake.they then stay up in the high areas for days!!!!
We have finally explained that if a really big earthquake occurs,just grab your kids and head up hill.
There would be a tsunami within 15 mins to 40 mins tops!
But the reality is that with our geographical position we are protected both by outer islands and by the very deep water that surrounds us.
A rise in water level would be the only effect if any.
But will keep our fingers crossed just in case.
