Cleveland volcano had a moderate ash eruption on 28 Oct. 2006. Based on pilot reports and satellite data, AVO estimated the height of the cloud to be 20,000 ft. above sea level. 

On the 28th of October 2006, a new phase of small lava fountains and strong strombolian activity occurred at the SE crater, between 10h32 and ca. 13h00 local time, following an increase in volcanic tremor starting at 05h30. A plume of ash was produced that reached 4 km a.s.l. and travelling south.

The new vent on the S flank of Bocca Nuova at about 3050 m elevation is inactive today. A series of concentric fractures have formed on the S flank of the summit crater.

Based on pilot reports, the Buenos Aires VAAC reported continuous emissions from Ubinas on 17, 19, 21, and 23-24 October. The plumes rose to 5.5-6.4 km(18,000-21,000 ft) a.s.l. and drifted SE, SW, E, and N.

Fumarolic activity and gas discharge in and to the W of Turrialba's centralcrater continued throughout September. New points of gas discharge, smalll and slides, and accelerated vegetation die-off were noted from various locations within the crater.

IG reported that during 18-19 October, emissions from Tungurahua increased inintensity and ash content and seismic tremor was continuous. During the night, lava fountains reached heights of 6 km (19,800 ft) a.s.l. and blocks rolled 800m down the flanks. According to the Washington VAAC, a pilot reported an ash plume to an altitude of 8.5 km (28,000 ft) a.s.l. Ash plumes drifted NE and Eand generated ashfall about 50 km E, in Puyo. According to news articles, about 300 villagers evacuated from the flanks. During 20-24 October, emissions continued and produced plumes to 7-8 km (23,000-26,000 ft) a.s.l. Ashfall was reported from towns on the N, NW, W, SW, and E flanks.

IG reported that during 18-19 October, emissions from Tungurahua increased inintensity and ash content and seismic tremor was continuous. During the night, lava fountains reached heights of 6 km (19,800 ft) a.s.l. and blocks rolled 800m down the flanks. According to the Washington VAAC, a pilot reported an ash plume to an altitude of 8.5 km (28,000 ft) a.s.l. Ash plumes drifted NE and Eand generated ashfall about 50 km E, in Puyo. According to news articles, about 300 villagers evacuated from the flanks. During 20-24 October, emissions continued and produced plumes to 7-8 km (23,000-26,000 ft) a.s.l. Ashfall was reported from towns on the N, NW, W, SW, and E flanks.

Based on information from JMA, the Tokyo VAAC reported an explosion from Suwanose-jima on 18 October.

Observations and data from deformation-monitoring instruments showed that during 11-17 October the lava dome at Mount St. Helens continued to grow in the Scrater and produce small rockfalls. On 22 October, a M 3.5 earthquake triggered the collapse of material from the largest of the lava-dome spines. The resulting ash plume rose to about 3.2 km (10,500 ft) a.s.l. and quickly dissipated to the W.

During 13-20 October, lava-dome growth at Soufrière Hills continued and was concentrated on the NE part of the edifice.  A new E-facing shear lobe with a smooth, curved back enlarged during the reporting period. Rockfalls and small pyroclastic flows originating from the active lobe affected the NE flank. On afew occasions, pyroclastic flows from the N flank spilled over Farrel's wall (the crater rim). The vent above Gage's wall was less active compared to the previous reporting period. A vent S of the active lobe periodically produced both ash and gas. Ash fell in northern areas of the island. Heavy rainfall resulted in mudflow activity in all drainage systems.

Based on a pilot report, the Darwin VAAC reported that on 18 October, an eruption plume from Semeru reached 4.6 km (15,000 ft) a.s.l.

According to the Washington VAAC, a series of minor emissions from Santa María's Santiaguito lava-dome complex on 18 October was visible on satellite imagery. The small plumes of gas and light ash drifted W.

Based on a pilot report, the Washington VAAC reported that on 21 October, emission plumes from Sangay reached altitudes of 6.7 km (22,000 ft) a.s.l.

Based on information from JMA, the Tokyo VAAC reported that explosions from Sakura-jima on 21 October produced plumes that rose straight up to 3.4 km(11,000 ft) a.s.l.

The RVO reported that a few Vulcanian eruptions from Rabaul occurred on 18 October and produced ash plumes to 1 km (3,300 ft) a.s.l. Ashfall was reported from E Rabaul town. Seismicity was at background levels and the rate of ground deformation was low.

OVSICORI-UNA reported that during September, Laguna Caliente, a summit lake of Poás, was mostly gray in color and produced gas columns that reached the craterrim. The level of the lake had dropped 5 cm with respect to August measurements and had a temperature of 46 degrees Celsius. On 25 October, a phreatic eruption produced a plume that drifted 12 km SW of the crater. Fumarolic activity from a pyroclastic cone on the floor of the crater produced gas plumes that drifted Wand SW. New points of gas discharge were noted from the crater floor, the SE and NE crater walls, the N terrace, and the NE edge of the crater.

A new chapter in Etna's book of surprises: Early on Thursday (around 2am on 26 Oct 2006) a new, short.lived lava flow emerged from the same fracture on the S flank of SE crater as on 23 Oct. Then, two hours later (around 4am), a new lava flow issued from a completely new location, from a new fracture on the south flank of Bocca Nuova at about 3050 m elevation. The flow branches into two arms near its vent and then joins again at the base of the summit cone. At noon of 26 Oct., it was still well alimentated, with an estimated rate of 10m3/sec. It expands in the flat area below the summit cone, where it has cut the jeep road circling the summit area.
In the meanwhile, the flow from the vent ESE of SE crater at 2830 m elevation which appeared on 13 Oct continues to flow into the Valle del Bove and has now reached the Monti Centinari.

During 18-24 October, lava from Kilauea continued to flow off of a lava delta into the ocean at the East Lae'apuki and East Ka'ili'ili entries. Incandescence was intermittently visible from the East Pond and January vents, South Wall complex, and Drainhole and Beehive vents in Pu'u 'O'o's crater. Summit inflation S of Halema'uma'u caldera continued. Weak incandescence was visible on the Pulama pali during 18-19 October. Tremor at Pu'u 'O'o remained at a typical moderate level.

Seismic data and satellite observations reported by KVERT indicated that moderate ash eruptions from Karymsky continued during 14-20 October. Weak local shallow earthquakes occurred at a rate of 100-290 per day. Ash explosions that were thought to have risen to about 3.6 km (11,800 ft) a.s.l. drifted E on 17-19 October.  A thermal anomaly from the volcanic crater was noted on 13, 15, and 17-19 October. Based on a pilot observation, the Tokyo VAAC reported that on 23 October an ash plume rose to 5.2 km (17,000 ft) a.s.l. and drifted E. The Level of Concern Color Code remained at Orange.

The AVO reported that earthquake activity and gas emissions continued at Fourpeaked during 14-20 October. Steam-and-gas plumes rising from a location near the summit were visible on a recently installed web camera.

PHIVOLCS reported an explosion from Bulusan on 19 October. The following day, steam plumes drifted W and WSW. On 23 October, an explosion produced a brownish ash plume that rose to about 2.6 km (8,400 ft) a.s.l. and drifted SE and SW.Light ashfall (trace to 0.5 mm thick) from both explosions was reported from neighborhoods in the municipality of Irosin.

Based on pilot observations, the Darwin VAAC reported that ash-and-steam plumes from Barren Island on 19 and 20 October reached altitudes of 1.5 km (5,000 ft)a.s.l. and drifted WNW.

In September, activity originating from Arenal's Crater C consisted of gas emissions, sporadic Strombolian eruptions, lava flows traveling N, and occasional avalanches from lava-flow fronts. Blocks from the lava-flow front straveled N, NE, and NW, periodically reaching vegetation where they produced small fires. Volcanic activity was at relatively low levels, however, with few eruptions occurring and a small amount of pyroclastic material ejected.
Eruptions produced ash plumes that rose about 2.2 km (7,100 ft) a.s.l. Ash and acid rain fell on the NE and SE flanks. Small avalanches of volcanic material traveled down several ravines. Crater D showed only fumarolic activity.

After new explosive activity the day before yesterday, that culminated in sustained lava fountains 50-100m high from the summit crater, a new fissure vent has opened on the S flank of SE crater cone, and a new lava flow emerged from there. The flow branched into two arms, both travelling towards the Torre del Filosofo. As of today, activity at the SE crater has ceased for the time being.

The effusive eruption at Piton de la Fournaise volcano is continuing and shows little variation, except that the intensity of the tremor has increased again to 60% of its original value.

In addition to the lava flow from the fissure at 2830 m elevation, SE crater seems to resuming explosive activity. Yesterday, INGV reported a number of strombolian explosions from its summit vent.

Tungurahua had a series of strong eruptions on the afternoon and evening of 18 October 2006. Lava fountains up to 1000 m height were observed. An associated as plumes rose to 8-10 km, visible on satellite images, and ballistic bombs were ejected to distances of 800 m of the crater. Westerly winds caused strong ash fall in the sector of Puyo east of the volcano.
During the night of 18-19 Oct, activity decreased again, but as a precaution, 300 people from nearby villages are reported evacuated.

Bulusan had another phreatic explosion on Thursday 19 Oct, 2006, at 18h44 local time, emitting an ash plume rising to 3-4 km elevation.

An unusually strong explosion took place on Stromboli on 16 Oct. at 19h11 local time. One of the vents of the central crater emitted a lava fountain that lasted 14 seconds, throwing large incandescent blocks all over the crater terrace and the upper slopes of the Sciara del Fuoco. The lava emission was followed by a strong jet of gas that lasted 3 minutes.

The lava flow on Etna is still active and flowing into the Valle del Bove, with little changes since its start on 13 Oct.

PHIVOLCS reported on 1 October that fumarolic activity from Mayon produced steam plumes that drifted ENE. Intense incandescence was observed at the summit. Observations were not possible 2-3 October due to cloud cover. According to news articles, the Alert Level was lowered to 2 on 3 October.

The AVO reported that volcanic unrest continued at Fourpeaked during 30 September-6 October. A seismometer that was installed on 25 September indicated ongoing low-level seismicity. Due to the limited number of seismometers, earthquake epicenters were not located. Emission rates of sulfur dioxide were high, similar to the previous week.

The eruption of Piton de la Fournaise (start Aug. 30) is going on. Inside Dolomieu crater there was formed a 25 m high new crater. The eruption centre is in the south-east part of the crater and the eruption has covered about 76% of the crater with a new lava flow . On October 9 there was a second crater formed that is still active.

A strong earthqake 6,5 on RICHTER-Scala hits Hawaii on Saturday 15th October

The eruption inside Dolomieu crater at Piton de la Fournaise volcano is continuing at low levels and tremor has been decreasing.
On Monday 9 Oct. a new vent opened about 100 m SW from Piton Wouandzani (the new cone formed in the eruption over the past weeks). It produced a new lava flow between the SE rim of Dolomieu crater and Piton Wouandzani. Since Thu 12 Oct., all activity from this vent has stopped, while it is still continuing at Piton Wouandzani which has an agitated lava lake deep inside and is feeding lava flows towards the W of Dolomieu crater.

Adam watching the flowing lava...

Lava flow on Etna volcano from 13 Oct. 2006 (1)

A new lava flow started today from a vent at 2830 m elevation SE of the SE crater - in perfect timing with the arrival of our ongoing tour on Etna.
The flow emerges as a viscous aa-type flow located on the ESE-WNW fracture system that has been feeding the recent effusive and explosive activity at the SE crater. The flow is descending into the Valle del Bove.

A new eruption took place the  morning of 10 Oct at Bulusan volcano causing ash fall up to 5 mm of thickness in the area of Irosin and Bulan.

Tavurvur volcano (Rabaul caldera) entered a more violent phase again. A powerful vulcanian explosion this morning at 10h00 local time produced an ash column that reached 7.6 km altitude.

Bulusan stratovolcano has a new eruptive episode yesterday 10 Oct, 2006, at 17h15 local time and produced an ash cloud reaching 3 km altitude that drifted towards the villages of Casiguran, Irosin and Bulan.
Since its reawakening on 21 March 2006, Bulusan has had 10 eruptions producing ash fall in the surrounding areas. On 24 June, a large lahar (=mud flow) travelled down the slopes of the volcano.

After the gant explosion on 6 Oct, probably larger than the eruption in 1994, Tavurvur continues to erupt at much lower intensity, with explosions producing ash plumes not higher than 3 km at the moment. 

Tom Pfeiffer´s photo of Stromboli

Tom Pfeiffer´s volcano photo of Stromboli volcano got a title photo of all promotion material for a exhibition about the nature hazards. There will be a exhibition program of German Senkenberg nature museum in Frankfurt/Main from 29.9.06 - 19.2.2008. There are brochures, a poster and a cataloque printed with his photo at the front. Also at the official homepage of Senkenberg Museum his photo is published.

Tavurvur volcano (Rabaul caldera, Papua New Guinea) had a large explosive eruption on 6 October, 2006, sending a plume of gas and ash to a height of 18 km. Rabaul was receiving moderately heavy ash fall, to the south and west heavy lapilli were falling around the south and south-west parts of the caldera these were ~1mm in diameter, with a few lithics up to 3 cm, about a 1cm has been deposited in the Blue Lagoon-Vulcan sector.  Ashfall was occurring in Kokopo and even Warangoi. Tavurvur was obscured from all directions.

SE crater in strombolian eruption on the evening of 4 Oct. 2006 Lights of Catania in background.

SE crater and the traces of a glowing block tumbling down from the lava flow emerging frmo the SE breach of the SE crater.

The eruption at the SE crater that had started on the 3rd of Oct. 2006 ended this this morning again (6 Oct.). The activity (which had begun in perfect timing for our tour on Etna scheduled from 4-7 Oct)  was characterized by near-constant strombolian explosions from the summit crater of SE crater, throwing bombs to about 50-150m height, as well as the emission of a viscous lva flow reaching about 300-500m length. Large, round incandescent boulders often detached from the flow and rolled down the slope into the Valle del Bove.

Tom Pfeiffer reports new activity at Etnas south-east crater. Lava is flowing again. More reports by Tom in the next days!

Visual observations show that the dome has continued to grow at a moderate rate during the reporting period. Growth appears to have occurred predominantly in the summit area, on the eastern side of the dome, with a prominent lobe growing in this location. The vents which became active at the end of August, one situated just inside Gage’s wall and the other situated on the summit of the dome, remain active, periodically producing both ash and gases. There have also been a number of pyroclastic flows during the reporting period, some of which appear to have had explosive onsets. Northerly winds during the 28 and 29 September resulted in minor ash fall in inhabited areas.

The eruption at Piton de la Fournaise volcano is fading away. Although some weakl alimented lava flows are still active inside Dolomieu crater, there is no more lava lake activity visible inside the new crater. The amount of tremor has been decreasing a lot over the past days.

update 1 October 2007:
As of today, all eruptive activity at the summit craters has ceased. However, it is expected that activity could soon resume again.
26 Sep 2007:
Etna is active again. The 3rd eruption of Europe's largest active volcano in 2006 started on 24 of Sep 2006 and seems to be a like a continunation of its second short-lived one terminated a few weeks ago. From the central crater of the SE cone, mild strombolian explosions are taking place, along with a slow-moving lava flow emerging from a breach in its eastern flank.