Mi, 28. Dez 2011, 21:20
Mi, 28. Dez 2011, 20:19
The new island in the Red Sea seen on 23 Dec 2011 (NASA Earth Observatory)
NASA satellite images show that the eruption in the Red Sea in the Zubair archipelago has produced a new island. The island is circular, about 500 m wide and located about 1 km north of Rugged Island. It consists of fresh probably basaltic lava flows and an active vent seems to be in its center.
Mi, 28. Dez 2011, 09:23
Ijen volcano in East Java, famous for its turquoise crater lake and the massive sulfur deposits inside the crater, might be close to an eruption.
Mi, 28. Dez 2011, 06:00Based on information from JMA, the Tokyo VAAC reported that during 28 and 30 December-3 January explosions from Sakura-jima produced plumes that rose to altitudes of 1.5-2.7 km (5,000-9,000 ft) a.s.l. and drifted NE, E, SE, and S.
Mi, 28. Dez 2011, 06:00
INSIVUMEH reported that during 29 December-3 January explosions from Fuego generated ash plumes that rose 400-800 m above the crater; the plumes usually drifted SSW and WSW, but on 30 December they drifted 10 km E and NW. During the week explosions generated shock waves and rumbling sounds that were detected 10 km away. House windows and roofs vibrated in nearby villages.
Mi, 28. Dez 2011, 06:00Instituto Geográfic Nacional (IGN) reported that during 28 December-3 January, the submarine eruption continued S of El Hierro Island. The tremor signal almost disappeared for a few hours on 28 December, after three hours with pulses every 30 seconds. The tremor amplitude started increasing again at approximately 16:35.
Mi, 28. Dez 2011, 06:00
KVERT reported that seismic activity continued at a moderate level at Karymsky during 23-30 December and indicated that possible ash plumes rose to an altitude of 5 km (16,400 ft) a.s.l. Satellite imagery showed a thermal anomaly at the volcano during 22-24 and 27-28 December; clouds prevented views on the other days. The Aviation Color Code remained at Orange.
Mi, 28. Dez 2011, 06:00During 28 December-3 January, HVO reported that the lava lake circulated and periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater, remaining below the inner ledge (75 m below the crater floor). Almost daily measurements indicated that the gas plume from the vent continued to deposit variable amounts of ash and fresh spatter nearby.
Mi, 28. Dez 2011, 06:00
KVERT reported moderate seismic activity at Kizimen during 23-30 December and a large thermal anomaly that was detected daily in satellite images. Video and satellite observations indicated that a large lava flow on the E flank continued to effuse. Gas-and-steam plumes drifted 150 km N and 30 km SE on 24 and 27 December, respectively.
Read all
Mi, 28. Dez 2011, 06:00CENAPRED reported that during 28 December-3 January steam-and-gas emissions rose from Popocatépetl and a gas plume rose to an altitude of 1 km on 28 December. Two small landslides were recorded inside the crater on 2 January. During 2-3 January gas plumes rose to an altitudes of 600-700 m above the crater and drifted NE.
Read all
Mi, 28. Dez 2011, 06:00
Based on seismicity during 28 December-3 January, OVDAS-SERNAGEOMIN reported that the eruption from the Cordón Caulle rift zone, part of the Puyehue-Cordón Caulle volcanic complex, continued at a low level. Small incandescent explosions were observed at night during 28 December-3 January. Plumes observed with a web camera during the week rose 1-5 km above the crater.
Read all
Mi, 28. Dez 2011, 06:00KVERT reported that moderate seismic activity was detected at Shiveluch during 23-30 December. Satellite imagery showed a daily thermal anomaly over the lava dome and gas-and-steam plumes drifting 30 km N and SE on 24 and 27 December, respectively. Ground-based observers noted that a viscous lava flow continued to effuse in the crater formed during a 2010 eruption.
Read all
Mi, 28. Dez 2011, 06:00
Based on a pilot observation, the Buenos Aires VAAC reported that the top of an ash plume from Callaqui was at 3 km (10,000 ft) a.s.l. on 2 January. Ash was not detected in satellite imagery under clear skies.
Read all
Mi, 28. Dez 2011, 06:00AVO reported that an ash cloud from Cleveland rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted 80 km ESE on 29 December. AVO raised the Volcano Alert Level to Watch and the Aviation Color Code to Orange.
Read all
Mi, 28. Dez 2011, 06:00
INGEOMINAS reported that activity continued at Galeras during 28 December- 3 January, with steam rising from the main crater and two craters to the N and SW (Paisita and Chavas, respectively). A web camera showed gas emissions on 28, 30, and 31 December and on 1 January. The Alert Level remained at III (Yellow; "changes in the behavior of volcanic activity").
Read all
Mi, 28. Dez 2011, 06:00According to news articles, at least three people were killed and 1,000-2,600 more from several villages were displaced by lahars from Gamalama during on 27-28 December. The lahars destroyed many homes in the Tubo and Tofure villages and along the Togorara and Marikurubu rivers. The Alert Level remains at 3 (on a scale from 1-4).
Read all
Mi, 28. Dez 2011, 06:00
CVGHM reported that white plumes rose 50-250 m above the summit of Lewotolo during the month of December. Seismicity increased on 31 December and intensified on 2 January, the same day incandescence was observed. Based on visual and seismic observations, CVGHM raised the Alert Level from 1 to 2 (on a scale of 1-4) on 2 January, then later that day raised the Alert Level to 3.
Read all
Mi, 28. Dez 2011, 06:00CVGHM reported that on 27 December seismic activity at Lokon-Empung suggested that an eruption had occurred, but fog prevented visual observations of the crater area. CVGHM noted on 28 December that the Alert Level remained at 3 (on a scale of 1-4), and reminded residents and tourists to not approach within a 2.5 km radius of the crater. Based on information from CVGHM, the Darwin VAAC reported that on 29 December an ash plume rose to an altitude of 3.7 km (12,000 ft) a.s.l.
Read all
Mi, 28. Dez 2011, 06:00
OVSICORI-UNA reported that fieldwork at Poás on 16 December showed new geyser activity from a vent on the N flank of the lava dome that formed in 2011. A water-and-mud fountain rose 5-6 m high, flowed into the lake, and built a terrace along the S shore. Gas-and-steam plumes rose from the lava dome.
Read all
Mi, 28. Dez 2011, 06:00CVGHM lowered the Alert Level for Sorikmarapi on 30 December from 2 to 1 (on a scale of 1-4).
Read all
Mi, 28. Dez 2011, 06:00
IG reported moderate seismic activity at Tungurahua during 28 December-3 January. On 31 December small steam emissions were observed, and on 3 January a gas-and-steam plume rose 200 m above the crater. Ash-fall from last week's explosions accumulated to a depth of 2-4 mm in villages to the SW.
Read all
Di, 27. Dez 2011, 19:00
![]()
Seismicity between 28 Sep - 27 Dec 2011
The number of earthquakes beneath Santorini volcano remains at slightly elevated levels. The activity is concentrated along the volcano-tectonic SW-NE alignment passing through the submarine volcano Kolumbo 8 km to the NE of the island and the center of the caldera where most volcanic vents in the past hundreds of thousands years of activity at Santorini were located.
Di, 27. Dez 2011, 11:05
Mt. Lokon volcano near Tomohon city in North Sulawesi erupted again with 3 explosions on Tuesday (26 Dec) early morning shortly after 3 am local time, the Jakarta Post reports. The eruptions followed a rapid increase in seismic activity detected since Monday. An exclusion zone of 2.5 kilometers around the volcano is in place.
Read all
Di, 27. Dez 2011, 10:58Bulusan volcano (Philippines) could be close to a new eruption. The volcano has been showing increased seismic activity and slight inflation on the NNE flank during the past 2 weeks, the Philippine Institute of Volcanology and Seismology (PHILVOLCS) reports.
Read all
Fr, 23. Dez 2011, 19:17
![]()
The sulfur dioxide plumes from Nyiragongo volcano (b) and Nyamuragira volcano (t), both in eruption, on 23 Dec 2012 (NOAA)
The flank eruption of Nyamuragira volcano north of Goma city, DRCongo, which had started in early November, is still going on, although at much smaller intensity than during the first weeks.
Read all
Do, 22. Dez 2011, 13:42
![]()
Eruption from Dukono volcano on 21 Dec 2011 (photo: Andi / VolcanoDiscovery Indonesia)
The remote Dukono volcano in Halmahera Island continues to produce ash explosions with plumes rising up to 1 km above the crater. Eruptions are following each other in intervals of 5-15 minutes and there are frequent small tremors.
Mi, 21. Dez 2011, 08:15
![]()
MODIS thermal image of the area of the reported eruption (the Zubair islands are in the center). No hot spot is visible, which could indicate either the eruption was extremely short and small, or there was another cause of the report.
(update 21 Dec:)
Read all
Mi, 21. Dez 2011, 06:00INGEOMINAS reported that activity continued at Galeras during 21-27 December, with steam rising from the main crater and two craters to the N and SW (Paisita and Chavas, respectively). The Alert Level remains at III (Yellow; "changes in the behavior of volcanic activity").
Read all
