Solomon Island Quake

摘要

On 1 April 2007, a large magnitude 8 earthquake ruptured across a complex plate boundary in the South Pacific, revealing the dynamics of the boundary and more broadly, how strain is accommodated in the colliding plates.. Furlong et al. (p. 226) describe how the earthquake ruptured where twornplates containing very young oceanic crust are subducting beneath the overriding Pacific plates in two directions. Thus sub-duction of young crust can produce great earthquakes. Furthermore the dynamics of uplift asso-ciated with the quake implies that most of the strain before the quake was accommodated in the overriding plates.