The September 2009 Padang earthquake

摘要

On 30 September 2009, the city of Padang in Indonesia was rocked by an earthquake with a moment magnitude of Mw '= 7.6 . Despite its size, the earthquake did not rupture the Sunda megathrust and did not significantly relax the 200 years of accumulated stress on the Mentawai segment. The megathrust strain-energy b udget remains substantially unchanged and the th rea t of a great, Mw > 8.5, tsunamigenic earthquake o n the Mentawai patch is unabated.