United States
Supply Reef
Stratovolcano
- Elevation
- -8 m
- Last documented eruption
- Not available
No current report does not mean extinct or safe. Source coverage varies between volcanoes.
Geography & tectonics
- Coordinates
- 20.13°, 145.1°
- Volcanic region (GVP)
- Mariana Volcanic Arc
- Tectonic setting
- Subduction zone / Crustal thickness unknown
- GVP
- 284142
Source: Smithsonian Global Volcanism Program