Tofua Arc at 21.3°S
About Tofua Arc at 21.3°S
During a submarine eruption in 1907 pyroclastic material was ejected to 100 m above the ocean surface, and pumice rafts were produced. The eruption was located (on Admiralty Chart 2421) ~48 km SW of Tongatapu Island. The location given in this catalog has been shifted 5 km N relative to the 1907 report, to a seamount that rises to within 100 m of the ocean surface, because the previous spot corresponds to sloping terrain at 1,800 m depth on a 1982 bathymetric map. A second eruption from this area was reported in late 1932. This seamount may be the SE part of a larger edifice extending about 15 km NW, informally designated as "Volcano 2" (R/V Sonne 167 survey).
Eruption reports
Reports from GDACS and NASA EONET linked to this volcano.
No eruption reports in our records yet. New reports appear here automatically.
Earthquakes nearby, 30 days
Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.
No earthquakes recorded nearby in the last 30 days.