Great East Japan Earthquake

 earthquake_tohoku_map Scale of the Earthquake
 Date: March 11, 2011 at 14:46 JST
 Epicenter: 130km off the Pacific
         Coast of Tohoku District
 Scale: Magnitude 9.0,
      Maximum Seismic Intensity 7
(The largest earthquake ever recorded in Japan)

Scope of Damages  (As of 10 June, 2019)
Human Casualties
 Deceased: 15,897
 Missing:   2,532
 Injured:   6,157
Damaged Buildings
 Completely destroyed: 121,991
 Half destroyed: 282,900
 Partially Destroyed: 730,114
As a result of the disaster, which precipitated the triple disaster of earthquake, tsunami and nuclear accident, more than 15,000 people lost their lives and over 2500 are still officially reported as missing, while a further 6,000 suffered injuries. In total, over 470,000 people were evacuated from their homes. As of July 2019, the number of evacuees has decreased to less than 51,000 people, among 26,000 are still in temporary housings. (The update of the number of evacuees is available here (only in Japanese))
Communities across northeastern Japan (Tohoku Region) suffered extensive and severe structural damage as a result of the earthquake and tsunami, including heavy damage to roads, railways, and airports, as well as many homes being left without electricity, gas and water. In total, over 121,000 buildings were totally destroyed, a further 282,000 buildings suffered severe damage, and another approximately 730,000 buildings partially damaged. (As of 10 June 2019) (The updates of the damages in detail is available here (only in Japanese))
In addition, the tsunami triggered the nuclear accident at the Fukushima Daiichi Nuclear Power Plant. To protect residents in areas surrounding the Fukushima Daiichi Plant, the government established evacuation zones that required approximately 154,000 people to evacuate from restricted areas. (The details about the zoning and the order is available here)
According to information from the Cabinet Office, the direct financial damage from the disaster was estimated to be approximately 16.9 trillion yen (US$199 billion), with 10.4 trillion of damage to buildings, 1.3 trillion to lifeline utilities, 2.2 trillion to social infrastructure and 3.0 trillion to other areas as of June 2011. The World Bank estimated that the economic cost could reach up to US$235 billion, making it the costliest natural disaster in world history.