An offshore earthquake of magnitude 5.9 struck 48km southeast of the island of Kasos, prompting emergency services to issue a tsunami warning and advise residents to evacuate the coast.
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A powerful 7.0 magnitude earthquake struck off the northern California coast, according to the US Geological Survey. The epicentre was near Ferndale, a small town in Humboldt County, about 260 miles (418km) north of San Francisco.