The death toll from an earthquake and a subsequent tsunami in Indonesia has risen to 1,234.

Some 191,000 people are estimated to be in urgent need of humanitarian assistance in Indonesia's quake- and tsunami-stricken region of Sulawesi, the United Nations warns.

Volunteers in Indonesia are preparing a mass grave, which could contain the bodies of over 1,000 victims of a powerful earthquake and ensuing tsunami waves, as the death toll surpasses 840.

The death toll could rise into the thousands as initial reports are emerging from densely-populated areas, in particular Donggala, a region of 300,000 people north of Palu and closer to the epicenter.

Aftershocks continued to rock the coastal city of Palu in Indonesia's central Sulawesi province on Saturday, September 29.

Officials say nearly 400 people have been killed in a powerful quake that sent a tsunami barreling into the Indonesian island of Sulawesi on Friday.

A major 7.7 magnitude quake has stricken off the Indonesian island of Sulawesi, prompting a tsunami alert.

At least one person is killed and 32 go missing after a powerful earthquake paralyzes the northern island of Hokkaido in Japan.

At least 91 people have died and many more have been injured as a major earthquake hits Indonesian holiday island of Lombok.

Seven years after a massive quake triggered a tsunami and nuclear disaster that killed 15,000, tour companies bring sightseers to ghost towns circling Japan's stricken Fukushima Daiichi nuclear plant, hoping to revive the region.