The latter plate bends and plunges deep into the earth, forming the Japan Trench
Because of the depth of the Japan Trench, the drill sites used by the team were among the deepest ever, more than four miles deep to the ocean sea floor and then another 2,700 feet underneath it.
So the stress is released in the area of the Tohoku rupture, but it is increased in neighboring sections along the Japan Trench.
Japan is now working to build such a network on the seafloor near the Japan Trench
The Cascadia Trench, however, lacks the instrumental network the Japanese have installed in the Japan Trench.
For McGuire, Lin, and others, what began on March 11 speaks to a dire need to look more closely at that first domino--the one that fell deep beneath the Japan Trench, setting in motion events that continue to unfold today.
A) The Japanese islands sit atop the Eurasian Plate near where it forces the Pacific Plate down into the Japan Trench.
Monitoring seismic and aseismic deformations over an extended period of time will enable scientists to understand how and when strain is released at the Japan Trench
, the team said.
The researchers built a high-resolution model that incorporated the known geologic features of the Japan Trench
and used CEES simulations to identify possible earthquake rupture histories compatible with the available data.
The Sendai quake occurred at the Japan Trench
, the junction of the westward-moving Pacific plate and the plate beneath northern Japan.
Japanese researchers have especially contributed to drilling activities in the Japan Trench, the Nankai Trough, and the Shikoku, West Philippine, and Japan Sea back-arc basins.
Nasu's research interest is marine geology, and he served as a co-chief scientist of Leg 57, which explored the Japan Trench.