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seismic vertical |
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seismic vertical [′sīz·mik ′vərd·ə·kəl] (geology) The point on the earth's surface directly over the point within the earth from which an earthquake impulse originates. The vertical line between the surface point and the point of origin. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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