Volcanic activity world-wide 3-5 November 2012 [1]

Source: Volcano Discovery [2] - By T, 11/05/12

The seismic swarm in the Tjörnes Fracture Zone [3] north off Iceland continues with little changes. About 50-100 earthquakes mostly of magnitudes of around 1-2 are being recorded daily. The largest recent one was a felt magnitude 3.8 quake at 5.6 km depth on Saturday 3 Nov.

At Kilauea volcano on Hawai'i [4], the 2 lava lakes at the summit and in Pu'u 'O'o on the rift zone remain active. A spatter cone near Pu`u `O`o continued to emit lava flows. In the coastal plain, lava flows remain active as well have been advancing slowly, but are still at least 1 km away from the coast.

Popocatépetl [5]'s activity has continues to increase a bit over the past days with about 3 weak to moderate explosions per hour, some producing small ash plumes.

Activity of Fuego volcano [6] in Guatemala continues dominated by the effusion of a lava flow, reaching now 800 meters length. Mild explosive activity was observed as well with 13 weak strombolian explosions during 4-5 Nov with ash plumes rising 2-500 m and spreading west and northwest. Incandescent material was thrown to 100 meters above the crater and generated weak avalanches on the upper crater's flanks.

The viscous lava flows from Santiaguito [7] lava dome resumed their progress. Strong glow from the western lava dome rim and constant avalanches from the flow fronts were observed during 4-5 Nov.

Seismic activity at El Salvador's San Miguel volcano [8] has calmed down compared to some weeks ago, but still shows many small quakes and long-period events.

Eruptive activity at Reventador volcano [9] in Ecuador probably continues. During a rare window of clear weather, a steam column was seen rising 3 km from the crater on 3 Oct. The seismogram shows intense activity as well.

An eruption of Manam volcano [10] in Papua New Guinea produced an ash plume rising to 10,000 ft / 3 km altitude on 3 Nov, indicating that sporadic explosive activity from the volcano goes on.

After a relatively quiet period between 30 Oct - 3 Nov, Sakurajima volcano [11] on Kyushu in Japan had a record number of 6 moderate explosions on 4 November (GMT time). Ash rose to altitudes of 6-8,000 ft (1.8-2.4 km).