Analysis of volcanic tremor during the 2021 Fagradalsfjall eruption
| Thesis title in Czech: | Analýza vulkanického tremoru během erupce sopky Fagradalsfjall, 2021 |
|---|---|
| Thesis title in English: | Analysis of volcanic tremor during the 2021 Fagradalsfjall eruption |
| Academic year of topic announcement: | 2021/2022 |
| Thesis type: | diploma thesis |
| Thesis language: | angličtina |
| Department: | Institute of Hydrogeology, Engineering Geology and Applied Geophysics (31-450) |
| Supervisor: | prof. RNDr. Tomáš Fischer, Ph.D. |
| Author: | hidden - assigned by the advisor |
| Date of registration: | 27.10.2021 |
| Date of assignment: | 19.01.2022 |
| Date of electronic submission: | 10.05.2022 |
| Date of proceeded defence: | 30.05.2022 |
| Opponents: | RNDr. Jan Burjánek, Ph.D. |
| Preliminary scope of work |
| Volcanic eruption is usually preceded by increased seismic activity in the area of the volcano with earthquake hypocenters mapping the extent of the pressurized magma accumulation. In addition to the earthquake activity the so called tremors are observed which reflect the processes in the magma including its movement, depressuriation and similar. The tremors are being observed not only by seismic stations but also as infrasounds in the atmosphere. The topic will be focused on the 2021 Fagradasfjall eruption in southern Iceland, Reykjanes peninsula. The tremor activity was found to correlate with the lava flow, which allows to reconstruct the history of the volcanic eruption using tremors recorded by the local seismic network Reykjanet. The seismic data also involve the local seismic activity which appears to cease during the eruption periods. The aim of the thesis is to reconstruct the history of the volcanic eruption for the whole eruption period and verify the anticorelation of the siesmic activity with the tremor activity. |
| Preliminary scope of work in English |
| Volcanic eruption is usually preceded by increased seismic activity in the area of the volcano with earthquake hypocenters mapping the extent of the pressurized magma accumulation. In addition to the earthquake activity the so called tremors are observed which reflect the processes in the magma including its movement, depressuriation and similar. The tremors are being observed not only by seismic stations but also as infrasounds in the atmosphere. The topic will be focused on the 2021 Fagradasfjall eruption in southern Iceland, Reykjanes peninsula. The tremor activity was found to correlate with the lava flow, which allows to reconstruct the history of the volcanic eruption using tremors recorded by the local seismic network Reykjanet. The seismic data also involve the local seismic activity which appears to cease during the eruption periods. The aim of the thesis is to reconstruct the history of the volcanic eruption for the whole eruption period and verify the anticorelation of the siesmic activity with the tremor activity. |