Carnival Valor was stranded for nearly an hour before the vessel regained power and continued her voyage.
A Carnival spokesperson said the ship had experienced a "temporary issue that affected the power supply to certain functions of the ship." He added that all functions had been "quickly restored."
Further details are currently not available.
Carnival Valor left Galveston on Monday, January 21, for a 5-day round trip Western Caribbean cruise to Cozumel and is due to return to Galveston on Saturday, January 26.
In May 2019, Valor will move the homeport to New Orleans, Louisiana.
For other Carnival Valor accidents and incidents see at the ship's CruiseMinus page.