Based on information from JMA, the Tokyo VAAC reported explosions from Sakura-jima during 31 July-4 August. Plumes rose to altitudes of 2.1-3.4 km (7,000-11,000 ft) a.s.l. on all days except 1 August.
Based on analyses of satellite imagery, the Darwin VAAC reported that on 29-31 July ash plumes from Batu Tara rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted as far away as 37 km NW and N.
Based on web camera views and analyses of satellite imagery, the Buenos Aires VAAC reported that during 29 July-1 August, and on 4 August, ash plumes from Chaitén's Domo Nuevo 1 and Domo Nuevo 2 lava-dome complex rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted N, S, and SE.
The government of the state of Colima reported that during 29 July-4 August white and sometimes gray plumes from Colima rose to altitudes of 4-4.3 km (13,100-14,100 ft) a.s.l. Some plumes drifted SW and W.
On 31 July, KVERT reported that activity from Ebeko had remained at low levels since 13 July. The Level of Concern Color Code was lowered to Green.
On 31 July and 3 August, INSIVUMEH reported that explosions from Fuego produced ash plumes that rose to altitudes of 4-4.6 km (13,100-15,100 ft) a.s.l. and drifted W. Some explosions were accompanied by rumbling noises.
On 4 August, INGEOMINAS reported that activity from Galeras had remained at a low level since the previous report on 28 July; the Alert Level was lowered to III (Yellow; "changes in the behavior of volcanic activity"). During the previous few days, active fumaroles were seen on the W flank of the active cone.
During 29 July-4 August, HVO reported that lava flowed SE from underneath Kilauea's Thanksgiving Eve Breakout (TEB) and rootless shield complex through a lava tube system, reaching the Waikupanaha ocean entry. Thermal anomalies detected in satellite images and visual observations revealed active surface flows on the pali. The vent in Halema'uma'u crater continued to produce a diffuse white plume that drifted mainly SW.
Wed, 29 Jul 2009, 06:00
INGEOMINAS reported that during 29 July-4 August seven pulses of seismic tremor from Nevado del Huila indicated explosions. Gas plumes seen on a web camera drifted W. On 3 August, ashfall was reported in areas to the W.
Read allWed, 29 Jul 2009, 06:00
On 31 July and 3 August, INSIVUMEH reported that white and blue plumes from Pacaya's MacKenney cone drifted S and SW. Multiple lava flows 50-300 m long traveled S and SW.
Read allWed, 29 Jul 2009, 06:00
RVO reported that during 22-30 July incandescence from Rabaul caldera's Tavurvur cone was occasionally visible at night. Steam plumes rose 1.5 km above the crater. During 28-30 July, ash plumes also rose 1.5 km above the crater, and rumbling and roaring noises were reported.
Read allWed, 29 Jul 2009, 06:00
On 31 July and 3 August, INSIVUMEH reported that explosions from Santa María's Santiaguito lava dome complex produced ash plumes and that the Caliente lava dome was incandescent. On 3 August, ash plumes rose to an altitude of 3.1 km (10,200 ft) a.s.l. and drifted W.
Read allWed, 29 Jul 2009, 06:00
KVERT reported that during 24-31 July seismic activity from Shiveluch was above background levels. Based on interpretations of seismic data, ash plumes possibly rose to an altitude of 6.5 km (21,300 ft) a.s.l. Steam-and-gas plumes with some ash content were also noted.
Read allWed, 29 Jul 2009, 06:00
Based on information from JMA, the Tokyo VAAC reported an explosion from Suwanose-jima on 5 August. Details of possible resultant ash plumes were not reported.
Read allWed, 22 Jul 2009, 09:04
The activity at Anak Krakatau has been quieting down to a few small explosions and the growth of a new lava dome in the new crater has slowed.
Wed, 22 Jul 2009, 06:00
INGEOMINAS reported that during 22-28 July four pulses of seismic tremor from Nevado del Huila indicated explosions. Gas plumes were seen on a web camera and during a commercial flight. On 23 July, ashfall was reported in an area to the NW.
Read allWed, 22 Jul 2009, 06:00
Based on a pilot observation, the Washington VAAC reported that on 23 July a possible ash plume from Sangay rose to an altitude of 7.9 km (26,000 ft) a.s.l. The plume was not identified in satellite imagery.
Read allWed, 22 Jul 2009, 06:00
Based on analyses of satellite imagery, SVERT reported that on 22 July a gas-and-steam plume from Sarychev Peak drifted 35 km N. Cloud cover prevented observations during 23-26 July. On 27 July, a steam-and-gas plume possibly containing some ash rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted 55 km NW.
Read allWed, 22 Jul 2009, 06:00
Based on information from JMA, the Tokyo VAAC reported explosions from Suwanose-jima during 23-24 July. Details of possible resultant ash plumes were not reported.
Read allWed, 22 Jul 2009, 06:00
Based on information from JMA, the Tokyo VAAC reported that on 22 July explosions from Sakura-jima produced plumes that rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted E and SE. On 23 July and 27 July pilots observed ash plumes that rose to altitudes of 2.1 and 3 km (7,000 and 10,000 ft) a.s.l. and drifted E and SW, respectively.
Read allWed, 22 Jul 2009, 06:00
KVERT reported that during 17-18 and 20-24 July seismic activity from Shiveluch was above background levels. During 17-20 and 22 July, gas-and-steam plumes seen on a video camera rose to an altitude of 3.7 km (12,100 ft) a.s.l. Based on interpretations of seismic data, ash plumes possibly rose to an altitude of 5.2 km (17,000 ft) a.s.l. on 20, 21, and 22 July, and steam-and-gas plumes with some ash content were noted on other days.
Read allWed, 22 Jul 2009, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that on 23 July an ash plume from Batu Tara rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted 55 km W. On 27 and 28 July, ash plumes rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted as far away as 150 km NW.
Read allWed, 22 Jul 2009, 06:00
Based on web camera views from the S, SERNAGEOMIN reported that during 16-22 July gas-and-ash plumes rose 1.5 km from Chaitén's growing Domo Nuevo 1 and Domo Nuevo 2 lava-dome complex. Collapses originating from unstable slopes generated block-and-ash flows, particularly in the W area of the complex. The Alert Level remained at Red.
Read allWed, 22 Jul 2009, 06:00
During 22-28 July, HVO reported that lava flowed SE from underneath Kilauea's Thanksgiving Eve Breakout (TEB) and rootless shield complex through a lava tube system, reaching the Waikupanaha ocean entry. Thermal anomalies detected in satellite images and visual observations revealed active surface flows at several locations on the pali. Explosions from the Waikupanaha ocean entry were reported on 22 July.
Read allWed, 15 Jul 2009, 06:00
Based on information from JMA, analyses of satellite imagery, and pilot observations, the Tokyo VAAC reported that during 15-21 July explosions from Sakura-jima's Showa crater occasionally produced plumes that rose to altitudes of 1.8-2.7 km (6,000-9,000 ft) a.s.l. Plumes were observed drifting SW, N, and NE. On 19 July, JMA raised the Alert Level from 2 to 3 (on a scale of 1-5).
Read allWed, 15 Jul 2009, 06:00
On 20 July, Servicio Nacional de Estudios Territoriales (SNET) reported that the amplitude of seismic events from San Miguel had decreased to normal or background levels. Access to areas within a 2-km-radius continued to be restricted.
Read allWed, 15 Jul 2009, 06:00
Based on analyses of satellite imagery, the Darwin VAAC reported that on 19 July an ash plume from Bagana rose to an altitude of 1.8 km (6,000 ft) a.s.l. and drifted 100 km NW.
Read allWed, 15 Jul 2009, 06:00
Based on analysis of satellite imagery, the Darwin VAAC reported that during 19-20 July an ash plume from Barren Island rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted 45-65 km NE.
Read all
