Work, uni, a 7 year old, Christmas and life in general has made posting near in possible the past month or so. The volcanoes around the world have been just as busy as I, so here’s a quick summery;
Yes this blogs most talked about lava field is still growing. A press release from the Icelandic MetOffice states the lava flow now covers in excess of 80 cubic kilometres.
Seismicity continues throughout the length of the dyke and within the Bardarbunga caldera albeit at a reduced rate then earlier in the eruption. Subsidence in the caldera has reached 56 meters in depth, and roughly 1.7 cubic kilometre. Gas emissions continue with elevated pollution warnings still in place through much of Iceland.
On the 29th December the fissure eruption will have been consistent for 4 months, although activity is not as great as in the earlier stages, the eruption shows no indication that the end is in sight.
The June 27th lava flow is still on the move at roughly 300 yards a day. The flow front currently sits less than half a mile away from Pahoa Marketplace where many of the businesses have had to close due to the on coming threat.
Sections of the flow have been made available, first for students and journalists, and now public to see the lava up close. Eruptions also continue at Kilauea’s summit and East Rift Zone.
Pico Do Fogo
Follow recent events on the Cape Verde island of Fogo has really triggered an anger inside of me in recent weeks and this eruption will have its own post soon after this one is published. However for a brief over view, Pico do Fogo begain eruption back on November 23rd. Since lava flows have devoured local villages forcing over 1500 to flee their homes. Gas and ash emissions have nearly ceased and lava output is now low, although remaining buildings in the village of Bangaeira are still being engulfed by the flow.
Nevado del Ruiz
This Colombian volcano caused one of the greatest natural disasters of the 1980’s. Seismicity has picked up since December 3rd inducing an increased aviation code to yellow. Ash emissions have been sporadic, with a white plume drifting almost 20 km south on December 15th.
During 9-16 December white plumes were occasionally observed rising from Mayon’s crater and drifted WNW and WSW, sometimes downslope. Three volcanic earthquakes were recorded on 9 December and one was recorded on 11 December. Alert Level remained at 3 causing PHIVOLCS to remind residents of the 6-km-radius Permanent Danger Zone (PDZ) around the volcano and the 7-km Extended Danger Zone (EDZ) on the SE flank due to recent rockfalls and threat of eruption.
The Tokyo VAAC reported that on 14 December an explosion at Suwanosejima produced a plume that rose to an altitude of 1.8 km (6,000 ft) and drifted SE.
Eruptions at Sinabung have continued and pyroclastic flows and emissions seem to have increased in intensity mid December. Ash plumes have risen in excess of 20,000 ft up to December 16th.
Poor weather conditions have meant little visual conformation of the Aleutian Island volcano, however due to increased seismicity it is believed that low level lava flows continue from previous weeks. The aviation code remains at orange.
This is just a small sample of the list of volcanic activity in recent weeks, for further updates visit the Smithsonian Global Volcanism Program;