Sendai has been subject to several major earthquakes in recent history, including the 1978 Miyagi earthquake, which was a catalyst for the development of Japan's current earthquake resistance standards, and the 2005 Miyagi earthquake. Most recently, the coastal area of Sendai, including Sendai Airport, was severely damaged in the 2011 Tōhoku earthquake and tsunami. The tsunami reportedly reached as far as Wakabayashi Ward Office, from the coastline. Thousands were killed, and countless more were injured and/or made homeless. Sendai's port was heavily damaged and temporarily closed, reopening on 16 April 2011.