Wednesday evening in Waikiki ended in classic Hawaiian style, with a stunning red, orange and gold sunset, children laughing and splashing in waves lapping the shore – and parents sipping cocktails from plastic cups.

A powerful magnitude 8.8 earthquake off Russia's Far Eastern Kamchatka Peninsula triggered tsunami waves of up to 16 feet nearby, and sparked evacuation orders in Japan, Hawaii and across the Pacific on Wednesday (July 30).

As threat assessments touched off warning sirens across Waikiki, hotels began moving guests mostly to higher floors — a standard protocol known as vertical evacuation.