Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 June-30 June 2009 (Continuing Activity)
Wed, 24 Jun 2009, 06:00
06:00 AM | BY: VNCrater D produced only fumarolic activity.
A small eruption on 16 June was verified by field observations on 17 June. The eruption caused avalanches that descended the S flank to an 800-m elevation a.s.l. An ash plume drifted W.
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 24 June-30 June 2009. Smithsonian Institution and US Geological Survey.
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Wed, 17 Jun 2009, 06:00
Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 June-23 June 2009 (Continuing Activity)
Three strong eruptions on 16 June resulted in pyroclastic flows. The National Park was evacuated as a precaution, but reopened the next day. Increased degassing the previous week had prompted an elevation of the hazard status to Level 3 (on a scale of 1-4). ... Read all
Wed, 6 May 2009, 06:00
Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 6 May-12 May 2009 (Continuing Activity)
OVSICORI-UNA reported that during April 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 of volcanic material traveled down several ravines. ... Read all
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