Matano Fault

It extends for about 190 km from near the southern end of the Palu-Koro Fault in the west, to Kolono Bay on the east coast of the island.

From west to east, these are the Kuleana, Pewusai, Matano, Pamsoa, Ballawi and Geresa segments.

The current slip rate along the Matano Fault is estimated to be in the range 17 to 28 millimetres (0.67 to 1.10 in) per year.

The most recent is dated to between 1432 and 1819 with a rupture length of ~110 km and an estimated magnitude of ~7.4 Mw.

The recurrence interval interpreted from these observations is 335±135 years, suggesting that a further rupture is likely due.