Japanese Tsunami 2011


Facts about the earthquake and tsunami that struck Japan on March 11th, 2011.

Earthquake:‚Äč

  • Magnitude: 9.0 (5th largest in historic times)
  • Duration of quaking: as long as 5 minutes
  • Japan's main island of Honshu moved eastward by 8 feet (2.4 meters)
  • A low-frequency rumble (infrasound) produced by the earthquake was detected by the Goce Satallite
  • About 250 miles (400 km) of Japan's northern Honshu coastline dropped by 2 feet (0.6 meters), compounding the ineffectivenes of seawalls

Tsunami:

  • International Nuclear Event Scale rating of the Fukushima Nuclear Plant disaster: Level 7, comparable to the 1986 Chernobyl disaster
  • Maximum distance inland reached by the tsunami: 6 miles (10 km) in Sendai
  • Area of land covered by tsunami waters: about 217 sq miles (561 km sq)
  • Speed of a tsunami over the open ocean: about 500 mph (800km/her)
  • Shortest travel time of tsunami: 8 min (Sendai, Japan)
  • Longest travel time of tsunami: 30 hrs, 19 min (Brazil)
  • Human toll: over 15,800 dead, nearly 6000 injured, and about 3650 missing
  • Economic toll: $300 billion (US), 45,700 buildings destroyed, about 230,000 vehicles destroyed