Cresting the peak of Pacaya Volcano in Guatemala City, Guatemala, Central America

Cresting the peak of Pacaya Volcano in Guatemala City, Guatemala, Central America

Cresting the peak of Pacaya Volcano in Guatemala City, Guatemala, Central America

Cresting the peak of Pacaya Volcano in Guatemala City, Guatemala, Central America

Wave patterns on the White Sand Beach of Wineglass Bay, Freycinet National Park, Freycinet Peninsula, Coles Bay, Tasmania, Australia, Pacific

Camogli, Liguria, Italy, Mediterranean, Europe

Generated by an undersea earthquake, a tsunami may propagate over open ocean waters before cresting and inundating a coastline.

Father and daughter sitting in the water on the shoreline playing in the foamy surf along Kamaole Beach, Maui, Hawaii, United States of America

Snowmobiler cresting a small hill to come on to Frame Lake in downtown Yellowknife. Photographed at the Rock/Ice Ultra marathon in Yellowknife, Northwest Territories