The comrades who worked the night shift in the early morning asked me if I knew about the earthquake. They felt a strong earthquake. During the earthquake, the bed was shaking and rumbling, and the water in the cup was shaking. My sister felt the earthquake while watching TV at home. She felt the residential building shaking and the LCD TV shaking. It was estimated to be an earthquake at that time, and the time was 2011.01.21,23: 55. The earthquake center is many towns in Dongtai city.