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earthquake

Issues before Japan

Japan’s ruling Liberal Democratic Party (LDP) entrusted the task of leading the party to its former secretary-general Shigeru Ishiba by electing him as its president on 27 September.

Deep earthquakes could reveal secrets of Earth’s mantle

This low-viscosity layer could explain some other observations by seismologists that suggested there are "stagnant" slabs of rock that don't move very much, located around the same depth at the bottom of the upper mantle.