Joint search command are holding a media conference right now announcing the reports from the Chinese news agencies are not yet verified but that the signal has been picked up a second time within 2km of the original signal.
Additionally white floating objects have been sighted about 90 km from where the signal was first picked up.
RAAF and RAN assets are being deployed to the new search area.
Apparently the RAN vessel Ocean Shield is investigating another acoustic event 300NM away from the Chinese vessel.
EDIT: ABC News report:
http://www.abc.net.au/news/2014-04-0...igated/5370558