The storm reached Category 4 strength but was a threat only to shipping lanes in the region.
Winds of up to 155 mph were generating waves almost as high as a three-story building on January 9 when Edzani was centered about 600 miles south-southeast of Diego Garcia.
Such a storm would have inflicted considerable damage had it struck an island or a populated coastal area.
Cyclone Edzani Track
Satellite Loop Data: CIMSS