6-magnitude quake jolts Indonesia

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JAKARTA, Aug. 23 (UPI) -- A 6-magnitude undersea earthquake jolted southwest Sumatra, Indonesia, early Tuesday, the U.S. Geological Survey said, but no tsunami warning was issued.

There were no immediate reports of injuries or damage.

Indonesia's Antara news agency, quoting the Indonesian meteorological agency, reported the quake with a magnitude of 6.2 occurred at 3.12 a.m. and struck southwest of Krui area in Lampung Province.

The U.S. agency said the quake's center at a depth of 19.4 miles was 195 miles west of the capital Jakarta.

Indonesia sits on a vulnerable quake-prone zone called the "Pacific Ring of Fire," where two continental plates meet and cause frequent seismic and volcanic movements.