Karymsky volcano is showing incread seismic activity. Moderate ash emissions send small plumes to up to 3,000 m (9,800 ft) a.s.l. traveling SW as observed by pilots. On 23 June, the alert level at Karymsky volcano was increased to Concern Color Code Orange.
During 30 June to 1 July, thin ash plumes from Ulawun were visible on satellite imagery. The plume heights were not reported.
Wed, 29 Jun 2005, 06:00
During 24 June to 1 July, seismic and volcanic activity at Soufrière Hills was elevated in comparison to the previous week. Periodic episodes of intense ash venting continued during the report period, culminating in an explosive event beginning on 28 June at 1306. During the event, ballistics were ejected onto the Farrell's plain (to the NW) and a column collapse produced pyroclastic flows.
Read allWed, 29 Jun 2005, 06:00
GVO reported that a significant seismic crisis occurred at Nyamuragira during several days in late June. The crisis consisted of swarms of mainly long-period earthquakes, which increased in number daily and peaked on 26 and 27 June. The swarms were recorded by the entire seismic network at the volcano, as far away as 90 km S of the volcano.
Read allWed, 29 Jun 2005, 06:00
On the evening of 2 July, members of the Japan Coast Guard observed a steam plume rising ~1 km above the sea near the island of Minami-Iwo-jima. On 3 July, JMA confirmed that a small-scale eruption had occurred at the submarine volcano Fukutoku-Okanoba, prompting the Japan Coast Guard to issue a warning against sailing in the area. Observers saw rock and mud rising to the sea's surface near the volcano and a ~1-square-km area of water that had turned orange-brown.
Read allWed, 29 Jun 2005, 06:00
Satellite imagery of Cleveland taken during 24 June to 1 July showed increased heat flow from the volcano and a possible debris flow. AVO stated that although observations were inhibited by cloudy weather, they indicated the possibility of increased volcanic activity. AVO did not assign a Concern Color Code to Cleveland due to the lack of seismic monitoring at the volcano and limited satellite observations.
Read allWed, 29 Jun 2005, 06:00
During 1-5 July, volcanic and seismic activity were at relatively low levels at Tungurahua. Low-energy plumes were emitted that were composed of gas, steam, and occasionally small amounts of ash. The plumes rose to a maximum height of ~5.8 km (19,000 ft) a.s.l. on 4 July.
Read allWed, 29 Jun 2005, 06:00
During 29 June to 5 July, growth of the new lava dome inside the crater of Mount St. Helens continued, accompanied by seismic and deformation data trends similar to those of the previous few weeks. On 2 July at 0630 a rockfall from the growing lava dome removed a large piece of the top of the dome, producing an ash plume that rose above the crater rim and generating a substantial seismic signal.
Read allWed, 29 Jun 2005, 06:00
During 24 June to 1 July, satellite imagery of Shiveluch showed a persistent thermal anomaly and fumarolic activity producing steam to 4-5 km (13,100-16,400 ft) a.s.l. On 30 June, ash-and-gas plumes rose 3-5 km (9,800-16,400 ft) a.s.l. and drifted NW.
Read allWed, 29 Jun 2005, 06:00
During 30 June to 5 July, gas-and-ash emissions continued at Reventador. Plumes rose to a maximum height of 7 km (23,000 ft) a.s.l.
Read allWed, 29 Jun 2005, 06:00
Thin plumes from Manam were visible on satellite imagery during 1-2 July. The plume heights were not reported.
Read allWed, 29 Jun 2005, 06:00
Lava from Kilauea entered the sea during 4-5 July, and few surface lava flows were visible on the Pulama pali fault scarp. Background volcanic tremor remained above normal levels at Kilauea's summit and at moderate levels at Pu`u `O`o. Slight inflation and deflation occurred at the volcano.
Read allWed, 29 Jun 2005, 06:00
Satellite imagery of Karymsky showed a narrow ash-and-gas plume at a height of ~3.5 km (11,500 ft) a.s.l. on 30 June. Based on interpretations of seismic data, ash-and-gas plumes may have reached heights of 3 km above the volcano's crater (14,900 ft a.s.l.).
Read allWed, 29 Jun 2005, 06:00
Ash emission continued at Colima during 29 June to 5 July. On 30 June, lahars traveled SW down La Lumbre Ravine and SSE down Montegrande Ravine to a maximum length of ~10 km. The lahars did not reach populated areas.
Read allWed, 29 Jun 2005, 06:00
A thin plume emitted from Bagana was visible on satellite imagery on 30 June. The height of the plume was not reported.
Read allWed, 29 Jun 2005, 06:00
On 3 July at 1646 an eruption at Anatahan produced a SSE-drifting plume to a height of ~12.2 km (~40,000 ft) a.s.l. according to Guam Meteorological Office radar. Volcanic fog (vog) briefly drifted S over the islands of Saipan and Tinian.
Read allWed, 29 Jun 2005, 04:28
The Mexican Civil Defense informed that during last 24 hours two ash eruptions have been registered as well as lahars without damages to the populations bordering to the volcano .
On slopes of the volcano a great amount of demolished trees was observed generated by the piroclastic flows, which increases the risk of pyroclastic avalanches in any future volcanic activity.
During the past week, several ash explosions have taken place, sending plumes to heights of up to 5,500 m a.s.l., drifting N and NW.
Fri, 24 Jun 2005, 01:48
Langila volcano continues to erupt, producing ash fall over near-by communities, where about 10,000 people live. Ashfall is causing respiratory problems and has damaged small plantations, food and water supply. Authorities have started to evacuate some people in the most affected villages and to bring in temporary shelter, water and food suplies.
Fri, 24 Jun 2005, 01:01
Read allWed, 22 Jun 2005, 17:56
Reventador Volcano in Ecuador has started to erupt again on Tuesday. According to Hugo Yepez, director of Geophysics Institute of the National Polytechnical School (IGEPN), a lava flow inside the crater has appeared. There is an increased possibility of explosive events in the near future.
Reventador, 3,485 meters high, is a symmetrical stratovolcano that had a major explosion on November 3, 2002, when a thick layer of ash reached the capital Quito.
Wed, 22 Jun 2005, 06:00
A short plume was visible in satellite imagery at ~3 km (9,800 ft) a.s.l. during 22-27 June and on 27 June a pilot report noted that the plume extended 37 km (20 nautical miles).
Read allWed, 22 Jun 2005, 06:00
On 24 June a narrow plume was identified in multispectral satellite imagery about an hour after an ash eruption was observed by the Instituto Geofísico. The ash plume was at an altitude of ~5.5 km (18,000 ft a.s.l.) and extended 35-45 km (20-25 nautical miles) W from the summit.
Read allWed, 22 Jun 2005, 06:00
On 22-24 June explosion columns from Santa Maria reached ~900 m above the crater (15,300 ft a.s.l.) and extended several kilometers to the SSW and W. On 27 June, in the region of Palajunoj, on the SW flank, constant avalanches of lava blocks were observed.
Read allWed, 22 Jun 2005, 06:00
On 27 June the Darwin VAAC received a pilot report of an ash plume 37 km (20 nautical miles) to the NW of the volcano.
Read allWed, 22 Jun 2005, 06:00
During 22-27 June, Popocatépetl volcano had several steam explosions. On 22 June, there was a volcano-tectonic micro-earthquake of magnitude 2.0, located 500 m NW of the crater at a depth of 4.6 km. On 23 June a pilot reported an ash cloud 8 km (26,000 ft) a.s.l.
Read allWed, 22 Jun 2005, 06:00
By 27 June a lava flow extended ~300 m down the SW flank. A white column reached ~150 m (8,860 ft a.s.l.) over the central crater and extended SW. Incandescent lava expulsions reached a height of 15-50 m.
Read allWed, 22 Jun 2005, 06:00
Seismic activity at Karymsky increased starting on 22 June. Ash explosions up to 3,000 m (9,800 ft) a.s.l. traveling SW were observed by pilots. According to seismic data, about 10 ash-and-gas plumes and avalanches occurred at the volcano. On 23 June Karymsky increased to Concern Color Code Orange.
Read allWed, 22 Jun 2005, 06:00
From 22-24 June, small incandescent lava expulsions reached ~50 m high and columns of grayish smoke rose ~300 m above the vent (13,300 ft a.s.l.) and drifted W. Weak rumbling and short avalanches of incandescent material accompanied these expulsions. On 27 June a lava flow was observed on the South flank extending approximately 300 m.
Read allWed, 22 Jun 2005, 06:00
The Russian Emergency Situations Ministry's Sakhalin department reported renewed activity at Ebeko. Emission clouds reportedly rose to a maximum height of 200 m above the crater and drifted SW.
Read allWed, 22 Jun 2005, 06:00
During 22-28 June, growth of the new lava dome inside the crater of Mount St. Helens continued, accompanied by seismic and deformation data trends similar to those of the past few weeks. The smooth lava spine continued to grow at a rate of about 1.8-3.7 m per day.
Read all