Unnamed, Tonga

Submarine volcano · -68 m (-223 ft) · Tonga-SW Pacific

Unnamed is a submarine volcano in Tonga, -68 m (-223 ft) high. Its last known eruption: 1900 to 1963. NOAA records 1 significant eruption here.

Unnamed on the map

Unnamed and the volcanoes within 300 km, colored by when each last erupted.

Since 1964
1900 to 1963
1800s
AD 1 to 1799
Before AD 1, or undated

Open the live map with volcanic ash advisories

The volcano

Type: Submarine volcano
Elevation: -68 m (-223 ft)
Country: Tonga
Region: Tonga-SW Pacific
Summit: 21.338° S, 175.650° W
Last known eruption: 1900 to 1963
Holocene activity known from: Historical
Smithsonian volcano number: 243010

Significant eruptions

1 on record, newest first.

July 1907VEI 0 · tsunami

Around it

The volcanoes within 300 km.

Earthquakes near Unnamed Volcanic ash advisories on the live map

Sources

Volcanoes and significant eruptions from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s.