Special Event Page
- Sumatra-Andaman Islands Earthquakes-

• December 26, 2004•

  • Time :        00:58:49 UTC (USGS)
  • •Location : 3.244°N 95.825°E (USGS)
  • •Magnitude (Mw):8.7  
  • Moment: 0.162E+23 (Dr.Yagi)
  • •Depth: 10 km
  • •Epicentral Distance from Dahran: 5489 km
  • •Damage Effects : 300,000 dead  

  March 29, 2005•

  • Time :        16:09:36 UTC (USGS)
  • •Location : 2.065°N 97.010°E (USGS)  
  • •Magnitude (Mw): 8.7 
  • Moment: 0.159E+23 (Dr.Yagi)
  • •Depth: 30 km (USGS)
  • •Epicentral Distance from Dahran: 5489 km
  • •Damage Effects : 1000 dead

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Click pictures to see in larger size. 

An example recorded Seismogram  at the Seismic Station of Earth Science Department

• Tsunamis, or water waves

– Result from vertical displacement along a fault located on the ocean floor

– In shallower coastal waters the water piles up to heights that occasionally exceed 30 meters

• The Science Behind The Aceh Earthquake
• Scientific Background Behind the Aceh Earthquake
• The Indian Ocean Disaster:Tsunami Physics and Early Warning Dilemmas, EOS, Vol 86, 2005.
• Aceh−Andaman earthquake: What happened and what's next?

Animal and Earthquakes

Links

• Special Page for large earthquakes (IISEE)
• Past Seismic Activity of Northern Sumatra from Utsu Catalog (plotted by Dr. Hara)
• Relocated hypocenters by the modified joint hypocenter determination (MJHD) (Dr. Hurukawa)
• USGS Earthquake Hazards Program (EHP)
• Earthquake and Volcano Deformation and Stress Triggering Research Group

  Institutions

  • United States Geological Survey (USGS), USA
  • Incorporated Research Institutions for Seismology (IRIS)

Forum Discussion: Tsunami Earthquake