Alamagan
- STS107-E-5464
- 24 January 2003
- 04:02 UTC
Located 29 km north from Guguan and 48 km south from Pagan, Alamagan like all the islands of the north is a volcanic peak emerging abruptly from the ocean floor.
The 11 km² island of Alamagan is circular in shape, measuring up to 3 km across. The interior has steep slopes cut by deep ravines; the west contains grasslands, with bare lava flows occupying much of the southeastern region. The summit of the Alamagan volcano rises to a height of 744 m above sea level and contains a summit-crater of 350 m in depth. The extensive basaltic-andesite lava flow that has extended the northern coast of the island is clearly visible in this low-resolution image.
Situated southeast of Alamagan are the Zealandia Banks — a shallow water platform located in 20-30 m of water.
image: earth sciences and image analysis laboratory, nasa johnson space center.