A magnitude 7.6 earthquake jolted western Indonesia on Wednesday leaving over 500 dead and stretching efforts of relief agencies as they try to address four different disasters this week in the South East Asian region.

A total of 529 people have been confirmed dead and 440 seriously injured from the quake, which struck around 5 p.m. near the West Sumatra capital of Padang.

"There are many people still trapped under rubble in Padang," Fr. Sigit Pramudji, regional director of Catholic relief service Caritas said. "One of our concerns is that there are only three hospitals, and two have been badly damaged in the tremor. Other challenges are getting access to Padang and poor communications."

Caritas and other international relief agencies including World Vision and Catholic Relief Services (CRS) have been stretched this week in their recovery efforts in the South East Asian, addressing the needs of Typhoon Ketsana victims in the Philippines and Vietnam as well as victims of Tuesday's 8.3 magnitude earthquake in the Samoan Islands.

"The scale of the devastation is stretching all of us," World Vision Philippines advocacy director Minnie Portales told the Christian Post.

"We have mobilized, and with our Caritas Catholic Church partners, we are providing emergency assistance to the families affected by these disasters," CRS President Ken Hackett stated. "These are our brothers and sisters who are in dire need. Our prayers are with them and we will do all we can to help.

And while emergency support continues to be of primary need in most regions, agencies have also begun planning for long-term reconstruction and recovery efforts.

"The emergency phase of these disasters will pass quickly," said Hackett. "But the recovery phase will go on for many months."