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USGS CMG InfoBank: Loihi

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Comment: 24:37 - 25:29 (00:52)
Source: Annenberg/CPB Resources - Earth Revealed - 6. Plate Dynamics
Keywords: theory, Hawaii, "hot spot", "Pacific Plate", "mantle plume", island, volcano, "sea floor"

Our transcription: If the theory of Hawaii's formation is correct, Hawaii will drift off the hot spot in a few million years as they Pacific plate carries it away in a northwesterly direction.
The mantle plume will stay where it is and eventually create a new island over itself. Indeed, a young submarine volcano dubbed "Loihi" has been discovered forming southwest of Hawaii.
It rises some 8,000 feet from the sea floor but has another 3,000 feet to go before it breaks the surface and becomes a real island.
Loihi should build up to the surface some time between 19,000 and 100,000 years from now.
The enduring mystery is why a mantle plume, such as the one underlying Hawaii should remain in the same place for over 75 million years.

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Page Last Modified: Thu Oct 31 04:25:52 PDT 2013  (chd)