A widespread search for victims of the March 11 earthquake and tsunami was launched by about 22,000 troops in Japan.

National Police Agency in Japan reported that death toll from the tragic incident had already risen to almost 13,000 people. Still, there is about 14,691 people missing. There were 4,683 people injured and 151,00 others have been displaced.

On Thursday, Japan was struck with a 7.1 magnitude aftershock. The earthquake killed 2 people and injured 283 others. It has caused power interruption, which has left 250,000 individuals to endure a dark Saturday night.

Sendai, which is one of the most-hit cities, is already preparing to begin operations. However, limited commercial service close the coast and at the airfield, which is located south of the city, will be restored by Wednesday.

Three “relief” flights going to and from Haneda airport in Tokyo will operate everyday as announced by the Japanese airline ANA. The airlines said it would be until last week of May before regular operations be restored in Sendai.

According to CNN, many of the region’s roads and railroads were knocked out by the incident. The opening of the airfield will bring much relief to the region.

Eastern Japan, as well as Tokyo, is likely to expect more aftershocks in the coming months, a Japanese researcher from Tokyo University’s Earthquake Research Institute said.

Satoko Oki said Japanese residents shouldn’t be surprised when aftershocks of magnitudes 7 will occur anywhere in Japan even a year after the March 11 incident.