Concepcion Bay Plata
Concepción Bay is a broad anchorage on the coast of central Chile, sheltered by the Tumbes Peninsula and Quiriquina Island. The Spanish city of Concepción stood beside the bay at Penco for much of the colonial period. Earthquakes and waves repeatedly damaged the settlement; after the destructive earthquake and tsunami of 1751, its inhabitants moved the city inland to the Mocha valley. The bay remained an important maritime approach to the Biobío region.