Researches on Earthquake Source Processes and Tsunami Generation Using Tsunami Data

Studies in Japan on earthquake source processes and tsunami generation using tsunami data during recent 15 yeas are reviewed. The new tsunami observation systems including ocean bottom tsunami meters, GPS tsunami meters, and ultrasonic wave meters, have been developed recently. The methods using the tsunami waveform data observed by those advanced systems have also been developed and the detail source processes of the recent large earthquakes are studied using those methods and data. Studies on 2004 Sumatra-Andaman great earthquake, which caused the worst tsunami disaster and affected the countries around the Indian Ocean, are reviewed. Next, studies on source models of historical large earthquakes using tsunami data are reviewed. Researches on the mechanism of tsunami earthquakes are also reviewed. Finally, tsunami studies on submarine landslides triggered by earthquakes are reviewed.