The Crozet Islands (French: ÃŽles Crozet; or, officially, Archipel Crozet) are a sub-antarctic archipelago of small islands in the southern Indian Ocean. The research station there is staffed by 18 to 30 people (varying by season). They perform meteorological, biological, and geological research, and maintain a seismograph and a geomagnetic observatory (IAGA code: CZT). The Comprehensive Nuclear Test Ban Treaty Organization also has listening equipment on the island.
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