For those who are curious, here's some news about the Mentawai islands from employees of the health and development NGO Surf Aid, off their webpage. Sounds like things are scary but in pretty good shape considering the pounding they've taken over the last two days. I imagine tsunami warnings are uniquely frightening when you're on a small island.
"No one left in Tuapejat. All have evacuated to higher ground. Very eerie, no power."
"90% of houses in Siberut island were damaged."
"Earthquake just after 7am local time this morning was a really big one. ... Ground fully shaking, women and children cowering in the street.
"SurfAid's Mentawai program manager Praem Poobalan just sent a message saying about 20 houses fully damaged in Tuapejat. ... SurfAid staff are at her house, plus some of the community in her garden - all on higher ground as there were tsunami warnings after big shake this morning. People really scared."