Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 11 November-17 November 2009 (Continuing Activity)
Wed, 11 Nov 2009, 06:00
06:00 AM | BY: VNCrater D produced only fumarolic activity.
Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)
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From: Global Volcanism Program, 2009. Report on Arenal. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 11 November-17 November 2009. Smithsonian Institution and US Geological Survey.
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Wed, 7 Oct 2009, 06:00
Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 October-13 October 2009 (Continuing Activity)
OVSICORI-UNA reported that during September activity originating from Arenal's Crater C consisted of gas emissions, sporadic Strombolian eruptions, and occasional avalanches that traveled down the W flank. Acid rain and small amounts of ejected pyroclastic material affected the NE and SE flanks. Avalanches from lava-flow fronts traveled down the SW flanks. ... Read all
Wed, 24 Jun 2009, 06:00
Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 June-30 June 2009 (Continuing Activity)
OVSICORI-UNA reported that during May activity originating from Arenal's Crater C consisted of gas emissions, sporadic Strombolian eruptions, and occasional avalanches that traveled down the SW, S, and N flanks. Acid rain and small amounts of ejected pyroclastic material affected the NE and SE flanks. Small avalanches traveled down several ravines. ... Read all
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