Geologic Background:
Ruby is a prominent, active submarine volcano in
the Mariana Arc (2,300 km S of Tokyo) located NW of the
Island of Saipan. Ruby, a submarine volcano that rises to
within 230 m of the sea surface.
Historic Activity:
- Evidence for Ruby's active status came from 1966
hydrophone data.
Recent Activity:
- Fishermen first reported indications of an eruption
on Oct. 11, 1995. Eruption was confirmed on Oct. 25. In
1995 submarine explosions were heard, accompanied by a
fish kill, sulfurous odors, water bubbling, and the
detection of volcanic tremor.
Data Sources:
- Global Volcanism Network (V. 20, No. 10)
|