Eyjafjallajokull: Difference between revisions
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===Eruption April May 2010=== | ===Eruption April May 2010=== | ||
The volcano entered a precursor eruptive phase on 20 March 2010 that included lava flows but no significant ash and | The volcano entered a precursor eruptive phase on 20 March 2010 that included lava flows but no significant ash and SO<sub>2</sub> 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, | The explosive part of the eruption can be divided into three phases (Zehner, | ||
2012; Stevenson et al., 2012; Petersen et al., 2012): | 2012; Stevenson et al., 2012; Petersen et al., 2012): | ||
Phase I: 14–18 April. | 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. | 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. | Phase III: 5 May–24 May. Magmatic eruption phase; more intense explosive phase; ash production and SO2 | ||
Revision as of 11:40, 6 February 2013
| 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
