Rome, 19 Aug. (LaPresse) – The National Institute of Geophysics and Volcanology (INGV), Etna Observatory, reports that, as of 5 am this morning, “Strombolian activity has resumed at the Voragine Crater, producing an ash plume which, according to forecast models, is dispersing towards the southern quadrant”. From a seismic perspective, from around 4.00 am “the average amplitude of volcanic tremor has shown a sudden increase; at present, the amplitude remains at a high level”. The centres of the tremor sources “are located in the area of the North-East Crater at altitudes ranging between 1,800 and 2,000 metres above sea level”. In terms of ground deformation, “the GNSS network is not currently showing any significant changes”. From around 4.30 am, some clinometric stations, particularly the three at the summit, “have recorded changes in their trends”. The summit station at Cratere del Piano “has currently accumulated a few tenths of a microradian, and the current change is consistent with the onset of a deflation process”.
Etna: Strombolian activity resumes at the Voragine crater, accompanied by ash
Rome, 19 Aug. (LaPresse) – The National Institute of Geophysics and Volcanology (INGV), Etna Observatory, reports that, as of 5 am this morning, “Strombolian activity has resumed at the Voragine Crater, producing an ash plume which, according to forecast models, is dispersing towards the southern quadrant”. From a seismic perspective, from around 4.00 am “the average amplitude of volcanic tremor has shown a sudden increase; at present, the amplitude remains at a high level”. The centres of the tremor sources “are located in the area of the North-East Crater at altitudes ranging between 1,800 and 2,000 metres above sea level”. In terms of ground deformation, “the GNSS network is not currently showing any significant changes”. From around 4.30 am, some clinometric stations, particularly the three at the summit, “have recorded changes in their trends”. The summit station at Cratere del Piano “has currently accumulated a few tenths of a microradian, and the current change is consistent with the onset of a deflation process”.