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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Temporal variations in discharge rate and component characteristics of tephra-fall deposits during the 2014–2015 eruption of Nakadake first crater, Aso Volcano, Japan

Fig. 5

Temporal variations in 60-min average amplitude of volcanic tremor (a), tephra discharge rate, cumulative erupted mass (b) and proportion of ash components (c). The volcanic tremor (N-S component) was observed at about 0.7 km WNW of the Nakadake first crater by the Japan Meteorological Agency (Fukuoka District Meteorological Observatory 2016). The cumulative discharged magma was estimated based on proportions of glass shards

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