Hundreds of thousands of people are homeless following the Lombok earthquakes. Much of this suffering need not have happened if houses were constructed to better withstand shaking.
Researchers are using a rubber-soil mixture to make earthquake-proof foundations.
A tectonic earthquake doesn't always trigger eruptions of nearby volcanoes. If an eruption happens, the volcano must already have been in a critical condition.
Caught in the middle: Lombok and Bali are exposed to earthquake and tsunamis risk due to a tectonic plate boundary to the south, but also a unique zone of activity that thrusts to the north.
Human trafficking is a growing problem in Indonesia and, despite support from regional neighbours, the country isn't making much progress.