Although I haven't been there myself, there seems to be some good information online which might help. There's certainly a lot of rain at the moment, and there was a cyclone warning issued today for the Shefa and Tavea provinces - have a look at http://www.meteo.gov.vu/ for more info.
There have also been a few earthquakes in the past weeks - 7.3 on 26 Dec and 6.9 on 9 Jan, thankfully neither of which produced any casualties or damage. I haven't been able to find anything regarding predictions of future seismic activity, but hopefully this is somewhat helpful for you! over 6 years ago