Somalia does not border the Indian Ocean, it borders the Arabian Sea. :)
Ahh!! The geography police have arrived.
CIA World Factbook: Somalia Location: Eastern Africa, bordering the Gulf of Aden and the Indian Ocean, east of Ethiopia
Even if one made the strained case that the Arabian Sea wasn't part of the Indian Ocean, and that there was some invisible line separating it from the Indian Ocean, most of the coast of Somalia would be south of that invisible line dividing the Arabian Sea from the Indian Ocean.
Somalia borders the Arabian Sea which is an arm of and thus part of the Indian Ocean. Southern Somalia borders the Indian Ocean.
Yup the wave jumped the Indian Ocean fence and took over the Arabian Sea...