The most common type of tsunamis are those generated by earthquakes that displace the seafloor. The majority of these are initiated at convergent margins such as along trench-forearc accretionary wedges, where large displacements of the seafloor are relatively common. Most convergent margins are located around the edges of the Pacific Ocean, so it follows that most tsunamis strike the margins of the Pacific Ocean. Many others are generated along the convergent margins in the Indonesian region, including the devastating December 26, 2004, Indian Ocean tsunami.
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