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An Icelandic volcano in the Fagradals Mountains dormant for 6,000 years erupted Friday night, with lava seeping from two sides in opposite directions.

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It is the first volcanic eruption in 781 years on the Reykjanes Peninsula. Its glow could be seen nearly 20 miles away in Reykjavík, Iceland’s capital.

The eruption is not considered a threat to any city or towns.

The Icelandic Meteorological Office considered it a small eruption and said on Saturday that its activity has decreased. The agency said the fissure is about 2,200 feet long and the lava area is about a 1/3 square mile.

The Department of Emergency Management was not anticipating evacuations because the activity is in a remote valley more than 1 mile from the nearest road.

Southwest Iceland has been hit with thousands of small earthquakes since Feb. 24 including many that registered at 3.0 magnitude or higher, a threshold where they could be felt, CBS News reported. A day before the eruption more than 400 earthquakes were reported over seven hours.

The Associated Press contributed to this report.