The quake`s epicenter was located at 2.04 degree northern latitude and 97.86 degree eastern longitude, 35 km southwest of Aceh Singkil District, and at a depth of 10 km below sea level, Edison Kurniawan, head of the Medan meteorology, climatology and geophysics office, said on Sunday.
The tremor was a shallow crustal earthquake caused by subduction activity of Indo-Australia plate toward Eurasia plate, he explained.
The earthquake was felt by residents of Aceh Singkil and Gunung Sitoli on Nias Island in North Sumatra Province at II-III MMI (modified mercalli intensity).
Reporting by Muhammad Said
Reporter: Antara
Editor: Fardah Assegaf
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