Tsunami Warning

Map of recent earthquakes.Real-time alerts and data related to the tsunami and earthquake off the coast of Japan.

  • West Coast and Alaska Tsunami Warning Center
  • Pacific Tsunami Warning Center
  • Related datasets
  • A world map displaying recent earthquakes with a magnitude of 3.0 or greater on the Richter scale and a depth of 50 kilometers or less. To highlight activity off the Japanese coast, click on the location features for Japan and explore the magnitudes of the quakes by looking at different Richter scale values. This Semantic-Web powered demo was built by Li Ding, a research scientist at Rensselaer Polytechnic Institute.