QUITO — A 6.0 magnitude earthquake shook coastal Ecuador on Sunday, opening cracks in walls and cutting electricity in the province of Manabi, authorities said. There were no immediate reports of casualties.

The quake occurred at 6:19 a.m. local time (1139 GMT) some 16 km from the coastal town of San Vicente, Ecuador’s Geophysical Institute reported on Twitter.

“For the moment we have no victims to lament, nor significant material damage,” President Lenin Moreno said on his Twitter account.

So far only minor cracks have been detected in some houses and power was knocked out in the towns of Chone and Bahia de Caraques, risk management secretary Alexandra Ocles told radio Ciudadana.

The Ecuadoran navy’s Oceanographic Institute said there was no danger of a tsunami.

Authorities said that there wasn’t a risk of a tsunami and appealed for calm.

They also expressed optimism that Ecuadoreans were better prepared for a natural disaster after rebuilding from last year’s magnitude 7.8 quake along the Pacific coast that left more than 600 people dead and thousands more injured and homeless.

“We’ve made some giant steps and are much more prepared than we were in the past,” said Ricardo Penaherrera, a top official with Ecuador’s agency for risk management, pointing out that authorities carried out an earthquake drill last week in the same area where Sunday’s quake took place.

He said authorities were still canvassing coastal areas for damage but that other than knocking out power in some rural areas there were no immediate reports of major damage.

Fabricio Diaz, governor of Manabi province, said emergency dispatchers received just 38 phone calls, the majority from residents inquiring about the quake’s epicenter rather than reporting damages. The province’s ports, dams and major roadways were unaffected, he said. — Agencies