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The Sciences

SI/USGS Weekly Volcano Activity Report for 4/1-7/2009

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Your weekly dose of volcanic activity. As a sidenote, you can now get placemarks for the weekly activity report via Google Earth. Select "Google Earth Placemarks" from the SI / USGS Weekly Volcanic Activity Report page.

Highlights of this week's report:

  • New explosions at Ebeko. See my article today for more details.

  • More evidence of increased activity at Nyamuragira and Nyiragongo, Congo. One interesting note is that scientists from the Goma Volcano Observatory noted that earthquake swarms usually precede eruption by 3-5 months.

  • I've seen very little news about this, but Pacaya in Guatemala has been experience some intense Strombolian eruptions and has produced multiple lava flows.

  • Minor ash and pulsating steam plumes at Galeras, Colombia

  • Light ashfall in towns 3-5 km from the Tavurvur vent at Rabaul, Papau New Guinea.

  • Sakurajima, Japan produced a 7,000-10,000 foot / 2-3 km ash plume.

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