Meanwhile, in other slow-motion disaster newsA nuclear expert has told the BBC that he believes the current water leaks at Fukushima are much worse than the authorities have stated.Mycle Schneider is an independent consultant who has previously advised the French and German governments.
He says water is leaking out all over the site and there are no accurate figures for radiation levels.
Meanwhile the chairman of Japan's nuclear authority said that he feared there would be further leaks.
The ongoing problems at the Fukushima plant increased in recent days when the Tokyo Electric Power Company (Tepco) admitted that around 300 tonnes of highly radioactive water had leaked from a storage tank on the site.
Assumption Parish officials on Wednesday released a video showing the sinkhole swallowing several trees in a matter of seconds.
The video, posted on the city's blog, is described a "slough in" that happened around 7:15 p.m. Wednesday.