Eyjafjallajokull

Eyjafjallajokull
Elevation	1666 m
Latitude	63° 38′ ″ N
Longitude	19° 36′ ″ W

Eyjafjallajokull is a is a stratovolcano, located close to Iceland’s southern coast.

Eruption April May 2010

The volcano entered a precursor eruptive phase on 20 March 2010 that included lava flows but no significant ash and SO₂ emission. Following earthquake activity an explosive eruption began on the 14 April 2010. The explosive part of the eruption can be divided into three phases (Zehner, 2012; Stevenson et al., 2012; Petersen et al., 2012):

Phase I: 14–18 April. Phreatomagmatic eruption phase; ice and water directly in contact with the fresh magma in the vent. Large amount of ash injected in the atmosphere, as well as steams plumes. Injection altitude of the plume is estimate between 2 and 10 km height (Marzano et al, 2011; Stohl et al., 2011)

Phase II: 18 April–4 May. Magmatic eruption phase; lower intensity of the eruption; altitude of the eruption column is between 2 and 5 km (Zehner et al, 2010; Stohl et al., 2011).

Phase III: 5 May–24 May. Magmatic eruption phase; more intense explosive phase; ash production and SO2 increase; eruption column altitude is reported between 4 and 10 km (Stohl et al., 2011).

IASI SO₂ retrieved amount [DU] and altitude [km] for the period 14 April to 17 May 2010 (Carboni et al 2012)

IASI SO₂ amount and altitude from Carboni et al 2012.

Analysis of the IASI retreival for Eyjafjallajokull eruption, together with estimate of total mass of SO₂ and comparison with other satellite data in Carboni et al 2012.