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Envisioned focal area of M9.1 Nankai Trough Megathrust Earthquake, by Headquarters for Earthquake Research Promotion, 2013.. Nankai megathrust earthquakes (Japanese: 南海トラフ巨大地震, Hepburn: Nankai Torafu Kyodai Jishin) are great megathrust earthquakes that occur along the Nankai megathrust – the fault under the Nankai Trough – which forms the plate interface between the ...
The Japanese government had previously predicted a 70-80% chance of a magnitude 8 to 9 earthquake happening along the Trough in the next 30 years. ... Nankai Trough earthquakes have been recorded ...
The Nankai Trough has produced large earthquakes roughly every 100 to 150 years, a study indicated last year. Japan’s Earthquake Research Committee said in January 2022 said there was a 70% to ...
In 2013, a government disaster prevention team said a magnitude 9.1 Nankai Trough quake could generate a tsunami exceeding 10 meters (33 feet) within minutes, killing as many as 323,000 people ...
Following the earthquake, the Japan Meteorological Agency (JMA) issued a 'Nankai Trough Earthquake Extra Information' advisory [28] that the probability of a megathrust earthquake along the Nankai Trough increased from a 0.1% per week to 1% chance [29] in what was the first advisory of its kind but clarified that it was not imminent.
Nankai earthquakes are caused by ruptures in the west zone (A and/or B segments) of the Nankai megathrust. The Nankai earthquakes (南海地震, Nankai jishin) are major megathrust earthquakes that affect the Nankaidō (Southern Sea Circuit) region of Japan, west of the Tōnankai region (Southeastern Sea) and Tōkai region (Eastern Sea), and are caused by ruptures in the Nankai zone of the ...
For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.
The Nankai Trough (南海トラフ, Nankai Torafu, Southern Sea Trough) is a submarine trough located south of the Nankaidō region of Japan's island of Honshu, extending approximately 900 km (559 mi) offshore.