Officials in Chile now say at least ten people were killed in a powerful earthquake Wednesday night. A widespread tsunami warning followed.

The earthquake shook northern and central Chile. Its center was about 500 kilometers north of the capital city, Santiago. People felt the quake as far away as Buenos Aires, Argentina.

Strong aftershocks followed. Many people spent the night outside.

Chilean President Michelle Bachelet spoke on television after the earthquake. Once again we must confront a powerful blow from nature, she said. A 2010 earthquake in Chile killed 500 people and badly damaged the city of Concepcion.