The northern region of Indonesia's Sulawesi island was struck by a second strong earthquake on Monday, after an earlier quake triggered a tsunami warning, the country's meteorological agency said.
The second quake had a magnitude of 6.0, and followed a 7.7 magnitude quake that struck an area 138 km (86 miles) northwest of the provincial capital Gorontalo, on Sulawesi, at a depth of 10 km (6.2 miles), the agency said. (Reuters)