For the city of Tacloban, where over 80 percent of the buildings are destroyed and ten thousand people are feared dead, super typhoon Haiyan was literally a knock-out blow.
This before and after satellite sequence of night lights in the central Philippines shows the city going completely dark in the wake of the storm.
In fact, the power appears to get cut along a 125 mile-wide (200 km) swath north of the cities of Iloilo and Bacolod from east to west.
This imagery comes from the day-night band of the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the Suomi NPP satellite.
The before image (below) was taken on October 31.
The after image (below) was taken on November 10, about two days after the storm passed.
Gallery: Aerial views of the devastation