Open Access

Fig. 4.

image

Same format as Fig. 3, but for a burst event recorded near January 29, 2020, 17:15:47 UTC. For this event, the frequency peak symbols are not color-coded, and they are offset upward in frequency for plotting.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.