United States · Stratovolcano
Guguan
- Type
- Stratovolcano
- Elevation
- 232m
- Last eruption
- 1883
- Type
- Stratovolcano
- Country
- United States
- Region
- Northwestern Pacific / Mariana Volcanic Arc
- Elevation
- 232m
- Coordinates
- 17.314, 145.840
- Last eruption
- 1883
- Tectonic setting
- Subduction zone / Crustal thickness unknown
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
The island of Guguan, ~2.8 km in diameter, is composed of an eroded volcano on the south, a caldera with a post-caldera cone, and a northern volcano. The latter has three coalescing cones and a breached summit crater that fed lava flows to the W and NW. The only known reported eruption, between 1882 and 1884, produced the northern volcano and lava flows that reached the coast. Freycinet (Uranie 1817 Expedition) confused Guguan and Alamagan; reported eruptions in 1819 and 1901 (Kuno, 1962 CAVW) actually refer to solfataric activity on Alamagan (Corwin, 1971).
From Wikipedia
Guguan is an island in the Northern Mariana Islands in the Pacific Ocean. The island is currently uninhabited. Guguan is located 30 nautical miles (56 km) south from Alamagan and 250 nautical miles (463 km) north from Saipan, and is 67 nautical miles (124 km) northeast from Sarigan.
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Eruption history
1 recordedGlossaryDetailed timeline
- 1883 (±1 yrs)VEI 2Observed1883-07-02 – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.