"The sea water level has risen by 9m (29ft) and has destroyed the Mukalla seafront," resident Mohammed Ba Zuhair told the Reuters news agency.
Below are some videos from Sara al aidarous on Twitter, which I can't verify, but I understand from Emirates 24/7 are of Al Mukalla, a city of about 300,000 people on the coast of Yemen:
— ُSara al aidarous⭐ (@SoS0i0s) November 3, 2015