The IG reported that on 29 April an explosion from Reventador produced a steam plume with low ash content. Meteorological clouds mostly prevented observations during 30 April-4 May.
CVGHM reported that observers at a post located 12.5 km NE of Rinjani saw one whitish-colored plume that rose 100 m from the volcano during February. Dense whitish plumes (and possibly brown) rose 500-900 m in March on 26 occasions and as high as 1,500 m in April on 41 occasions. Plumes seen on 1 and 2 May were "chocolate" in color and rose a maximum height of 1,600 m.
On 30 April, INSIVUMEH reported that explosions from Santa María's Santiaguito lava dome complex produced ash plumes that rose to altitudes of 2.8-3.7 km (9,200-12,100 ft) a.s.l. and drifted N and NW. Ashfall was reported in towns downwind.
OVDAS-SERNAGEOMIN reported that during February incandescence from Villarrica was seen at night through web cameras. The report reiterated that incandescence was typical; the Alert level remained at Green, Level 1. Video and photographs taken during 24-25 April, and posted on the Projecto Observación Visual Volcán Villarrica (POVI) website, showed Strombolian activity in the crater.
Based on information from JMA, the Tokyo VAAC reported that during 28 April-5 May explosions from Sakura-jima often produced plumes. Those plumes, along with ash plumes occasionally seen by pilots, rose to altitudes of 1.2-3.4 km (4,000-11,000 ft) a.s.l. and sometimes drifted NE, E, and SE.
Based on analyses of satellite imagery, the Darwin VAAC reported that on 28 and 30 April and during 1-3 May ash plumes from Batu Tara rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted 35-95 km SW, W, and NW.
The Darwin VAAC reported that on 3 May an ash plume from Dukono was seen on satellite imagery drifting about 90 km W at an altitude of 3 km (10,000 ft) a.s.l.
Based on information from the Vanuatu Geohazards Observatory, the Wellington VAAC reported that on 29 April and 2 May ash plumes from Gaua were seen on satellite imagery drifting W and NW at an altitude of 3 km (10,000 ft) a.s.l.
Wed, 28 Apr 2010, 06:00
During 28 April-4 May HVO reported that activity at Kilauea continued at the summit and the east rift zone. At the summit, episodic rising and falling of the lava-pool surface continued at the deep pit inset within the floor of Halema`uma`u crater; glow from the vent was visible. On most mornings the plume of gas and ash from the summit vent drifted NW, W, and SW.
Read allWed, 28 Apr 2010, 06:00
KVERT reported that during 22-30 April seismic activity from Kliuchevskoi was above background levels. Strombolian activity was noted and lava continued to flow down the flanks. Gas-and-steam plumes containing small amounts of ash were seen on 22 April.
Read allWed, 28 Apr 2010, 06:00
KVERT reported that during 23-30 April seismic activity from Shiveluch was above background levels and suggested that possible ash plumes rose to an altitude of 5.7 km (18,700 ft) a.s.l. During 22-25 April ash plumes from hot avalanches rose to an altitude of 3 km (10,000 ft) a.s.l. and fumarolic activity from the lava dome was noted.
Read allWed, 28 Apr 2010, 06:00
Based on information from JMA, the Tokyo VAAC reported explosions from Suwanose-jima on 29 April, and during 1 and 4-5 May. Details of possible resulting plumes were not reported.
Read allWed, 28 Apr 2010, 05:09
The eruption at Eyafjallajökull continues. As the Icelandig Met Office reports, ash plume elevations and magma discharge levels remain similar to the preceding four days of activity. Lava continues to flow north from the eruption site toward the head of the Gígjökull glacier. Despite light ash-fall occurring up to 45 km west of the eruption site, the explosive activity and ash production represents a fraction of conditions during the height of the eruption (14-17 April). There are no measurable indications that the eruption is about to end.
Wed, 28 Apr 2010, 05:02
The Chilean geological service SERNAGEOMIN raised the alert level of Llaima volcano from 3 to 4 on 25 April because of 'the occurrence of earthquakes with high energy levels and tremor signals with durations of up to 20 minutes', a volcanologist reported to a llocal newspaper.
Read allWed, 28 Apr 2010, 04:59
Santiaguito volcano had 4 strong eruptions between 18:50 and 20:00 local time on 26 April, 2010. According to INSIVUMEH and local newspapers, the explosions from the lava dome produces ash plumes reaching 8-9 km a.s.l. Authorities closed the airspace around the volcano in a radius of 20 km.
Sat, 24 Apr 2010, 06:33
The eruption at Eyafjallajökull volcano on Iceland continues at a similar rate as during the past days, with strombolian and phreatomagmatic activity at the summit, generating ash plumes reaching 2-5 km height. Deflation of the volcano indicates that the eruption might be nearing its end.
Read allWed, 21 Apr 2010, 14:23
Shiveluch on the Kamchatka Peninsula in eastern Russia continues to be very active. An eruption last week produced an ash plume reaching 7.5 km.
Wed, 21 Apr 2010, 14:11
The eruption of Gaua volcano (located in the far north end of the archipel of Vanuatu) is increasing and the situation is worsening for the inhabitants of the island, news articles report. As plumes reach 10,000 ft (3000m) elevation and the fresh ash contaminates water and food supplies on the island, promting authorities to prepare for an evacuation of about 3000 people from the island if the situation continues or gets worse.
Wed, 21 Apr 2010, 08:07
Explosion inside the crater of Eyjafjallajökull on 20 April with a visible shock wave in the ash cloud.
As our team members Jorge Santos and Marco Fulle report from on location, the eruption seems to be declining. Since 20 April, it consists of separated bursts of lava from the summit crater, accompanied by loud shock waves rattling windows at up to 20km distance. On one occasion, Jorge managed to photograph such a shock wave near the crater.
Read allWed, 21 Apr 2010, 06:00
The Institute of Earth Sciences at the Nordic Volcanological Center (NVC) reported that the summit eruption from Eyjafjallajökull continued during 21-27 April. The eruption rate on 21 April was inferred to have been an order of magnitude smaller than during the initial 72 hours of the eruption, having declined over the previous few days. Phreatomagmatic activity with some lava spatter occurred from the northernmost of two craters in the summit caldera, generating plumes to an altitude of 3 km (9,800 ft) a.s.l. that drifted S.
Read allWed, 21 Apr 2010, 06:00
The IG reported that on 20 April scientists conducting an overflight of Reventador saw steam-and-gas emissions. They also observed an explosion generate a pyroclastic flow that traveled 200 m down the S flank. Deposits from previous pyroclastic flows were seen on the same flank.
Read allWed, 21 Apr 2010, 06:00
On 20 April, INSIVUMEH reported that explosions from Santa María's Santiaguito lava dome complex produced ash plumes that rose to altitudes of 2.8-3.4 km (9,200-11,200 ft) a.s.l. and drifted S and SE. On 26 April, ash explosions and pyroclastic flows generated ash plumes that rose to an altitude of 8.3 km (27,300 ft) a.s.l. and drifted NW and N.
Read allWed, 21 Apr 2010, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that on 23 April a possible ash plume from Tongkoko rose to an altitude of 10.7 km (35,000 ft) a.s.l. [Note: The Darwin VAAC later stated that, according to CVGHM, the plume was caused by a fire and not an eruption.]
Read allWed, 21 Apr 2010, 06:00
Based on information from JMA, the Tokyo VAAC reported that during 14-26 April explosions from Sakura-jima sometimes produced plumes identified in satellite imagery. Those plumes, along with ash plumes occasionally seen by pilots, rose to altitudes of 1.5-3.7 km (5,000-12,000 ft) a.s.l. and sometimes drifted in multiple directions.
Read allWed, 21 Apr 2010, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that during 19-20, 23, 25, and 27 April ash plumes from Bagana rose to altitudes of 1.5-3 km (5,000-10,000 ft) a.s.l. and drifted 35-85 km S, SW, W, and NW.
Read allWed, 21 Apr 2010, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that during 25-27 April ash plumes from Batu Tara rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted 45-85 km W and N.
Read allWed, 21 Apr 2010, 06:00
The Darwin VAAC reported that on 27 April an ash plume from Dukono was seen on satellite imagery drifting 45 km NW at an altitude of 3 km (10,000 ft) a.s.l.
Read allWed, 21 Apr 2010, 06:00
On 26 April, INSIVUMEH reported that explosions from Fuego produced gray plumes that rose to altitudes of 4.3-4.6 km (14,100-15,100 ft) a.s.l. and drifted E. A few of the explosions produced avalanches around the volcano, and rumbling sounds were heard.
Read all
