SANTIAGO -- A strong earthquake hit northern Chile and southern Bolivia on Thursday, causing panic among local residents and cutting utilities, but there were no immediate reports of casualties or damage, officials in Chile and Bolivia said.

The quake, measuring 6.9 on the Richter Scale, occurred at 16:29 p.m. (1929 GMT) and triggered panic along the border in the Andes mountains, according to Chile's National Emergency Office (ONE).

The epicenter of the quake was 40 kilometers southeast of the northern Chile resort town of San Pedro de Atacama, near the Bolivian border, at a depth of 155.4 kilometers, it said.

In the Pacific coastal city of Antofagasta, 1,100 km north of Chile's capital, hundreds of residents rushed to the streets out of fear of a tsunami.

Despite the subterranean shaking, there were no reports of casualties yet, according to Chilean officials.

Officials in Bolivia also said there were no immediate reports of injury or damage there and that the earthquake zone was sparsely populated.

The University of Chile Seismology Institute put the magnitude at 6.8 on the Richter Scale, still the second most intense quake registered in northern Chile.

A more powerful quake in June left 11 Chileans dead and destroyed hundreds of houses in the Andes mountains along the border with Bolivia.