Dhaka, Nov. 22 -- A 5.7-magnitude earthquake on Thursday triggered major disruptions in Bangladesh's national power system, knocking at least 1,100 megawatts (MW) of electricity offline after six power plants tripped simultaneously.

Officials of the Bangladesh Power Development Board (BPDB) said that by the afternoon, around 200-250MW had been restored, and further recovery was expected later in the night.

"At least six power plants went out of operation immediately after the quake. We are working with alternative equipment to resolve the issues and bring this substation back online soon, as it is linked to multiple distribution lines," said Zahurul Islam, BPDB member (production).

The highest single loss came from the 660MW first unit o...