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VolcanoWatch Weekly [30 July 2009]

Posted by feww on July 30, 2009

Volcanic Activity Report: 22 July – 28 July 2009

VOW: Batu Tara

batu tara July 27 2009
Batu Tara remained active in late July 2009. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this photo-like image the volcano releasing a faint plume on July 27, 2009. The distinct segments of the plume suggest that the volcano has released ash and/or steam in pulses. The plume blows toward the northwest over the Flores Sea.  NASA image courtesy MODIS Rapid Response Team, Goddard Space Flight Center. Caption by Michon Scott.

batutara EO 18 may 2009
Batu Tara remained active in mid-May 2009. On May 17, 2009, as the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this image, the tiny volcanic island released a plume of ash and/or steam. The volcano’s plume forms a counter-clockwise arc north of the volcano. East of that plume is another, fainter plume, almost certainly of the same origin, blowing westward over the Flores Sea. NASA image courtesy MODIS Rapid Response Team, Goddard Space Flight Center. Caption by Michon Scott.

New activity/unrest:

Source: Global Volcanism Program (GVP) – SI/USGS Weekly Volcanic Activity Report

Notes:

KVERT reported that during 17-18 and 20-24 July seismic activity from Shiveluch was above background levels. According to news sources, an ash plume rose to an altitude of 7 km (23,000 ft) a.s.l. late on 25 July. Increased seismicity, powerful ash bursts, and avalanches were also reported.

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. (Source: GVP)

Ongoing Activity:

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