(Bloomberg) -- Puerto Rico was hit by a series of new earthquakes on Saturday including one which measured 6.0 on the Richter scale, according to the United States Geological Survey.

There were no immediate reports of injuries and no tsunami warning was issued.

The Pacific Tsunami Warning Center said in a statement on its website that “based on available data, there is no significant tsunami threat” from the latest incident.

However, the center added, “there is a very small possibility of tsunami waves along coasts located nearest the epicenter,” which was about 13 kilometers (8 miles) south of the village of Indios on the island’s south coast.

The cities of Lares, Adjuntas, Ponce and San German suffered a blackout due to the quake, Puerto Rico’s electricity authority said on Twitter. Tests were being carried out to restore the service as soon as possible, the AEE added.

The quake was the latest of a series of seismic events since the island was hit by a 6.4 magnitude tremor on Tuesday, shutting down the complete power infrastructure and leading to Governor Wanda Vazquez Garced calling a state of emergency for the U.S. commonwealth.

Garced on Saturday said she was in contact with mayors in the area of the latest quake. All agencies were in the southern part of the island assisting the people affected by the tremors, she added.

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