SAN FRANCISCO, United States (AFP) — A 6.5-magnitude earthquake struck Thursday off the coast of northern California, but there was no tsunami threat, seismologists said. The US Geological Survey said there was “a low likelihood of casualties and damage” from the quake, which hit on the Mendocino fault. The Pacific Tsunami Warning Center said there was no tsunami threat. The epicenter of the quake, which hit at 6:49 am (1449 GMT), was located 97 […]