The Indonesian government plans to strengthen domestic housing construction standards to mitigate the impact of potential megathrust ... The major earthquakes in Java and Sumatra in 2006, 2007 ...

The largest megathrust earthquake in history occurred in the subduction zone of Valdivia, South Chile, at 9.5 magnitudes. In Indonesia, the active subduction zones cover the southern area of Java ...

These “seismic gaps” indicate high-risk zones for future big earthquakes. A seismic gap, for example, exists between the megathrust zones off the western and eastern coasts of Java.

She said that the BMKG had also mapped 13 zones in Indonesia with the highest potential to be hit by megathrust earthquakes. Four of Indonesia's five big islands, Java, Sumatra, Sulawesi and Papua ...

Once every several hundred years or so, they generate a major megathrust earthquake and large tsunami. According to Suzanne Carbotte, the study's lead author and Columbia University marine ...