East Epi

Current alert level

Signs of Volcanic Unrest

1

Description for East Epi

The East Epi group consists of multiple basaltic and dacitic submarine cones within a postulated caldera and lies off the eastern coast of Epi Island in Vanuatu. Three cones, known as Epi A, Epi B and Epi C, are located along the northern rim of the inferred caldera.

Map showing the locations of the three main cones of the East Epi group (Epi A, Epi B, and Epi C) 4-10 km NNE of Epi Island. Epi B is the site of the 2023 activity. The small island ~16 km N of the cones (top center) is Lopevi volcano.

Elevation

833 m / 2733 ft

Latitude

16° 40' 46.92"

Longitude

168° 23' 21.48"

Volcano Types

  • Cluster
  • Stratovolcanoes
  • Caldera
  • Submarine

Most recent eruptions

JANUARY - FEBRUARY 2023

Surface activity was characterized by phreatic explosions that propelled ash approximately 100 meters into the atmosphere, lasting only a few hours on February 1, 2023. However, the eruption itself began in late January and continued until early February.

Past eruptions

16TH - 24TH FEBRUARY 2004

Reported observation of an eruption between 16 and 24 February 2004, and while adjacent to Lopevi, the crew of the fishing vessel Azur reported and photographed an explosion rising above the ocean surface on 19 February. The Epi B eruption was confirmed by the infrasonic recordings of the CEA/DASE (Departement d'Analyse et de Surveillance de l'Environnement) geophysics station, located in New Caledonia, more than 600 km away.

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