Unusually high SO₂ emissions and plume height from Piton de la Fournaise volcano during the April 2020 eruption.

ABSTRACT: Piton de la Fournaise volcano, La Réunion, France, erupted between the 2 and 6 April 2020, one of a series of eruptive phases which occur typically two or three times per year. Here, we use back trajectory analysis of satellite data from the TROPOMI instrument to determine that gas emissions during the June 2020 eruption were of unusually high intensity and altitude, producing 34.9 ± 17.4 kt of SO₂ and plume heights up to 5 km a.s.l. The early stages of the eruption (2-4 April 2020) were characterised by relatively low SO₂ emission rates despite strong low frequency tremor (LFT); the latter phase followed an increase in intensity and explosivity in the early hours of 5 April 2020. This period included lava fountaining, significantly increased SO₂ emission r

SUBMITTER: Hayer C 

PROVIDER: S-EPMC9993386 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature