Detailed text transcripts for TV channel - CNN - 20100228:02:20:00
Of quakes? >> yes. it is a very active fault system. you've got the tectonic plates, sub ducting between the south american plate fairly rapidly eight centimeters a year, three inches a year the plates collide. the oceanic plate goes beneath the south american plate in this area. it generates a lot of et quakes. we've had 13 magnitude 7.20 and larger since 1973. to the south of this recent earthquake was the largest earthquake we have recorded with instruments, 9.5 in 1960. >> larry: you are not surprised by the aftershocks? >> we are certainly not surprised by the aftershocks in this earthqua...
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