Current Activity: Hunga Ha' Hapai , Sinabung and Holuhraun.

The eruption of Hunga Ha 'Hapai in the Tongan archipelago, continues without images ... unfortunately due to cloud cover.

New Zealand authorities issued an aviation alert following the Wellington VAAC report relating a "dark volcanic cloud" emitted by the volcano, at more than 4,800 meters high and up to 18 km from the eruptive site. According to the media Stuff.nz, the eruptive plume above the cloud cover, and was photographed by a passenger during a flight to Tonga.

The Air New Zealand flights from Auckland to Samoa were diverted, while Fiji Airways canceled a flight Nadi -Tonga

Sources:

- Stuff. Nz - Tongan volcano eruption leads to flight diversions - link

- VAAC Wellington / met service  - link

Hunga Ha 'Hapai - ash advisory 12.01.2015 / doc VAAC Wellington

Sinabung eruption continues with his daily lot of plume and pyroclastic flows.

After Sunday's lahars, ash fallout have particularly affected the village of Berastagi this January 12th. Volunteers distribute masks to villagers to protect the airway.

In its edition today, the Jakarta Post reminds the situation of displaced people who no longer receive local government support ... no longer considered as refugees. Only families in the red zone, or within a radius of three kilometers, still receive some assistance. The displaced numbered 3549 in December 2014, including 2,433 still living in shelters.

Sources: Jakarta Post - Thousands of Mt. Sinabung evacuees receive no help - link
 

Sinabung - co-pyroclastic plume 01.12.2015 / 14h05-14h45 - photo Bidar Sinabung

Sinabung - co-pyroclastic plume 01.12.2015 / 14h05-14h45 - photo Bidar Sinabung

Sinabung 01/12/2015 - Ash on Berastagi - a click to enlarge - photos endrolew@

Sinabung: mud and ash everywhere! - Photo AP - Binsar Bakkara & Twitter Mitigasi Bencana

In Iceland, the lava field Holuhraun reached to January 10 over 84 km².

Scientists at the University of Iceland estimate the thickness of the lava field averaged 10 meters, 12 meters in the center and 14 meters in its western part. The lava emitted volume is estimated at 1.1 cubic kilometers, enough to considered the eruption as Flood basalt.

Subsidence of the caldera of Bárðarbunga decline from 80 cm to 25 cm / day, a sign that less magma comes to the surface ... satellite observations also shows a decline: the heat flux fell from over 20 gigawatts in early September less than 5 gigawatts in late November, but that does not mean the end of the eruption.

Sources:
- Icelandic Met Office
- Iceland Review
- University of Iceland

Holuhraun - stir in the lava lake - photo University of Iceland 10/01/2015

Holuhraun - the lava lake within its walls - photo University of Iceland 01/10/2015

Holuhraun - photo University of Iceland 10/01/2015