AlQa'dah 14, 1433, Sep 30, 2012, SPA -- A magnitude-7.1 earthquake struck off Colombia on Sunday, prompting a tsunami warning, the US Geological Survey said according to dpa. US media said no damage or injuries were reported. The epicentre of the earthquake was at a depth of 150 kilometres and about 345 kilometres north-east of Quito, Ecuador, it added. The tsunami bulletin was issued for areas bordering the Pacific Ocean south of California.