It is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the Americanplate has a sinking part.
很难看出这如何适用于南大西洋的山脊，在那里，非洲板块和美洲板块都没有下沉的部分。
2
Nearly 700 miles long, the earthquake zone is located by the North AmericanPlate off the coast of Pacific British Columbia, Washington, Oregon and Northern California.
地震带位于太平洋的大不列颠哥伦比亚省、华盛顿州、俄勒冈州和北加州沿海的北美板块，近700英里长。
3
This huge jolt happened as the Nazca plate moved down and landward below the South Americanplate.