The cause of the outages—which was undetermined for five days—appeared to be the company's decision to continue supplying power to the 400,000 people serviced by twenty-two feeder cables after ten of them had failed, overloading the remaining twelve. After these were repaired, a manhole-to-manhole inspection and repair of smaller cables which had also burned took place.
The power outages, which lasted for five days, were caused by the company's decision to continue supplying electricity to 400,000 people served by twenty-two feeder cables after ten of them failed, overloading the remaining twelve. After repairs were made on the faulty feeders, a manhole-to-manhole inspection and repair of smaller cables that had also burned took place.