The United States has declared a major disaster in American Samoa following a deadly tsunami Tuesday that reportedly killed more than 99 people when it struck the island U.S. territory and the independent nation of Samoa.

A multimedia exhibition from Norwegian photographer Jonas Bendiksen on display at the National Building Museum in Washington, D.C., documents the experiences of families living in unplanned, off-the-grid slums in Nairobi, Mumbai, Caracas and Jakarta.