Banua Wuhu

Name

Banua Wuhu

Depth

200 meters

Height

400 meters

Type

Submarine volcano

Location

Sangihe Islands (Indonesia)

Status

Historical

Eruption

1919

Description

The Banua Wuhu submarine volcano in the Sangihe Islands rises more than 400 meters from the sea floor to form a shoal less than 5 meters below sea level. Banua Wuhu is an active submarine volcano. It is a parasitic element on the north western side of adjacent Mahenetang Island. Banua Wuhu is an intermittently emergent pustule of known volcanic and shallow hydrothermal activity. Gas bubbling, sub-surface sonic activity and venting of hydrothermal liquefied with temperatures around 50C are known to occur on the zenith at around 10meters depth. A 90 meters high island was formed in 1835, but then dwindled to only a few rocks in 1848.