Ruby

United States · Stratovolcano

Ruby

Type: Stratovolcano
Elevation: 174m (submarine)
Last eruption: 2023

Ruby submarine volcano in the southern Mariana arc is seen in this bathymetric data looking from the NW with 2x vertical exaggeration. Depths in this image range from 184 to 2,955 m, and it rises to within 230 m of the ocean surface NW of Saipan. There was an eruption detected in 1966 by sonar signals. In 1995 submarine explosions were heard, accompanied by a fish kill, sulfurous odors, bubbling water, and the detection of volcanic tremor. · Photo: Image courtesy of Susan Merle (Oregon State University/NOAA Vents Program).

Type: Stratovolcano
Country: United States
Region: Northwestern Pacific / Mariana Volcanic Arc
Elevation: 174m (submarine)
Coordinates: 15.605, 145.572
Last eruption: 2023
Tectonic setting: Subduction zone / Crustal thickness unknown
Landform: Composite
Major rock type: Basalt / Picro-basalt

Geological summary

Ruby is a basaltic submarine volcano that rises to within about 200 m of the ocean surface near the southern end of the Mariana arc NW of Saipan.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →