A POWERFUL earthquake rocked the Solomon Islands on Friday, experts say. The 6.6-magnitude tremor hit about 100 miles east of Kira Kira, a provincial capital in the South Pacific nation at about 2.30pm local time (3.30am GMT). According to the United States Geological Survey, the quake hit at a depth of 21 miles There was no immediate tsunami threat or reports of damage or casualties from the earthquake. The Solomon Islands are in the Ring of Fire – a long chain of volcanoes and earthquakes around the edge of the Pacific Ocean. There are 452 volcanoes based in the 25,000-mile ring that stretches from North and South America to Japan and New Zealand. Since 1850 about 90 per cent of the most powerful eruptions happened within this boundary. Mount Agung in Bali is one of hundreds of active volcanoes along the Ring of Fire. More to follow… For the latest news on this story keep checking back at Sun Online. Thesun.co.uk is your go to destination for the best celebrity news, football news, real-life stories, jaw-dropping pictures and must-see video. Download our fantastic, new and improved free App for the best ever Sun Online experience. For iPhone click here, for Android click here. Like us on Facebook at www.facebook.com/thesun and follow us from our main Twitter account at @TheSun.