Arenal volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 30 June-6 July 2010 (Continuing Activity)
OVSICORI-UNA reported that during June activity originating from Arenal's Crater C consisted of gas emissions, sporadic Strombolian eruptions, and occasional avalanches. Some of the Strombolian eruptions caused glass to vibrate in buildings located 4 km N. A lava flow that began in mid-January remained active on the S flank.
Wed, 30 Jun 2010, 06:0006:00 AM | BY: VN
Avalanches from edges of the lava flow and from the N and NE crater rim descended multiple flanks. Acid rain and small amounts of ejected pyroclastic material affected the NE, E, and SE flanks. Small explosions of gas and occasionally ash originated from a vent N of Crater C, while Crater D produced only fumarolic activity.
Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)
From: Global Volcanism Program, 2010. Report on Arenal. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 30 June-6 July 2010. Smithsonian Institution and US Geological Survey.
Fri, 4 Jun 2010, 08:55
It was reported that on 24 May a series of incandescent flows were flowing the W flank, towards the lake, reaching a forest. An ash plume was drifting and the N. Arenal National Park was closed briefly because to the activity. ... Read all
Wed, 26 May 2010, 12:37
Arenal volcano in Costa Rica had a stronger explosive and/or effusive eruption around 1pm on 25 June. According to various news sources, explosions produced 8 ash avalances (or lava flows) and promted the evacuation of parts of the Arenal National Park. Although almost constantly active during the past decades, the last major eruption of Arenal was in 1968 when 89 people got killed. ... Read all