The high-resolution satellite Pleiades, operated by Airbus Defence and Space offers us images of volcanic activity of Tonga volcano. After the inspection of New Zealand teams and images in the first half of January, here is a clear satellite image that reveals a new island almost circular, with a diameter of about 1,500 meters, connected to Hunga Ha'apai by a wide isthmus.
The crater is visible, and we can see that at the date of the satellite photo, Jan. 19, 2015, the eruption has subsided.
The new island formed by the surtseyan eruption is connected to Hunga Ha'apai - 01.19.2015 Pleiades satellite
Compared with the photo of July 2014, we see that the vegetation of the nearby islands disappeared under the ashes of the eruption.
Airbus Defence and Space - Eruption d’un volcan dans l’archipel des Tonga, Pléiades assiste à la naissance d’une nouvelle île - link
via Shérine France que je remercie.