Volcanoes of the Mariana Islands Facts & Information

Volcano list

Agrigan

(Stratovolcano 965 m / 3,166 ft)

Agrigan volcano is an active stratovolcano and the highest of the volcanoes in the Marianas volcanic arc. It contains contains a 500-m-deep, flat-floored caldera. The last confirmed eruption was in 1917. [more]

Ahyi

(Submarine volcano -137 m / - 449 ft)

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Alamagan

(Stratovolcano 744 m / 2,441 ft)

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Anatahan

(stratovolcano 790 m / 2,592 ft)

Anatahan volcano forms the small 9 x 3.7 E-W elongated Anatahan Island in the northern Marianas, about 120 km north of Saipan, the regional Commonwealth of the Northern Mariana Islands capital.
The volcano is at the southern end of the 1500 km long chain of volcanoes forme... [more]

Asuncion

(Stratovolcano 857 m / 2,812 ft)

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East Diamante

(Submarine volcano -127 m / - 417 ft)

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Eifuku

(Submarine -551 m / -1808 ft)

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Esmeralda Bank

(Submarine volcano -43 m / - 141 ft)

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Farallon de Pajaros

(Stratovolcano 360 m / 1,181 ft)

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Forecast Seamount

(Submarine volcano unknown summit elevation)

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Guguan

(Stratovolcano 287 m / 942 ft)

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Kasuga 1

(Submarine -598 m / -1962 ft)

Kasuga 1 is the northernmost of three seamounts in the Kasuga seamount chain. It rises to within about 600 m of the sea surface. Pumice from a submarine eruption was witnessed in 1959. (Image: NOAA, 2003, http://oceanexplorer.noaa.gov/explorations/03fire/logs/mar02/media/kasuga.html)

The Kasuga 1 seamount is a conical volcano that rises to within 598 m of the sea surface SE of Fukujin submarine volcano. It was listed as an active volcano by the Japan Meteorological Agency, and floating pumice attributed to a submarine eruption was seen south of the volcano in... [more]

Kasuga 3

(Submarine -1325 m / -4347 ft)

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Mariana Back-Arc Segment at 15.5°N

(submarine volcano -4100 m / -13,451 ft)

Approx. 130 km west of Saipan lies a volcanically active submarine spreading zone at water depths of more than 4,000 meters. Evidence of significant volcanic activity from this area has been found recently. [more]

Maug Islands

(Stratovolcano 227 m / 745 ft)

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NW Rota-1

(Submarine volcano -517 m / - 1,696 ft)

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Pagan

(stratovolcanoes 570 m / 1,870 ft)

Pagan volcano consists of 2 stratovolcanoes (North and South Pagan) connected by a narrow isthmus and forms the largest and one of the most active of the Mariana Islands. It is located 173 nautical miles north of Saipan.
Nearly all historical eruptions of Pagan, which were... [more]

Volcanoes of the Mariana Islands and Guam (26)

Volcano list

Agrigan

Ahyi

Alamagan

Anatahan

Asuncion

East Diamante

Eifuku

Esmeralda Bank

Farallon de Pajaros

Forecast Seamount

Guguan

Kasuga 1

Kasuga 3

Mariana Back-Arc Segment at 15.5°N

Maug Islands

NW Rota-1

Pagan

Ruby

Sarigan

Seamount X

South Sarigan Seamount

Supply Reef

Tracey Seamount

Unnamed 20.30°N/143.20°E

Unnamed 21.00°N/142.90°E

Zealandia Bank

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