Earth:Terevaka
| Ma'unga Terevaka | |
|---|---|
 | |
| Highest point | |
| Elevation | 1,664 ft (507 m) [1] |
| Coordinates | [ ⚑ ] : 27°5′4″S 109°22′46″W / 27.08444°S 109.37944°W |
| Geography | |
| Location | Easter Island |
| Geology | |
| Mountain type | Shield volcano |
| Last eruption | Pleistocene, less than 110,000 years ago |
Ma'unga Terevaka is the largest, tallest (507.41 m (1,664.73 ft)) and youngest of three main extinct volcanoes that form Easter Island. Several smaller volcanic cones and craters dot its slopes, including a crater hosting one of the island's three lakes, Rano Aroi.
While Terevaka forms the bulk of Easter Island, the island has two older volcanic peaks: Poike which forms the eastern headland and Rano Kau the southern. Terevaka last erupted in the Pleistocene and is less than 400,000 years old. Its lava field at Roiho has been dated at between 110,000 and 150,000 years old. Terevaka can be climbed via a trail that starts next to the moai at Ahu Akivi.
Terevaka is the 12th most topographically isolated summit on Earth.[2]
Terevaka from space with Hanga Roa above and Rano Kau at top – a west up photo from Nasa
See also
- List of volcanoes in Chile
- List of islands by highest point
- Topographic isolation
References
- Karsten M. Haase; Peter Stoffers; C. Dieter Garbe-Schönberg (October 1997). "The Petrogenetic Evolution of Lavas from Easter Island and Neighbouring Seamounts, Near-ridge Hotspot Volcanoes in the SE Pacific". Journal of Petrology 38 (6): 785–813. doi:10.1093/petrology/38.6.785. http://www.oxfordjournals.org/our_journals/petroj/online/Volume_38/Issue_06/html/ega038_gml.html. Retrieved 2010-03-16.
- Kaneoka I, Katsui Y, 1985. K-Ar ages of volcanic rocks from Easter Island. Bull Volc Soc Japan, 30: 33–36.
- Vezzoli L, Acocella V, 2009. Easter Island, SE Pacific: an end-member type of hotspot volcanism. Geol Soc Amer Bull, 121: 869–886.
External links
- Education-Conservation-Research Terevaka Archaeological Outreach (non-profit)
- Guide to Easter Island from the Easter Island Foundation
- Old photos of Rano Aroi (upper right)
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