Intrusive Seismic Swarms as Possible Precursors of Destructive Earthquakes on Mt. Etna’s Eastern Flank

Table 1

List of earthquakes recorded between 1980 and 2019 occurring on Mt. Etna’s eastern flank with . EMS = European macroseismic scale;  = macroseismic magnitude;  = local magnitude [62]. Bold lines represent the destructive events.

	Date	Time (UTC)	Epicentral area	Longitude	Latitude	EMS
1	20/07/1983	22:03	Viagrande	37.613	15.101	7	4.0	4.3
2	19/06/1984	15:19	Fiandaca	37.636	15.131	7	3.8	4.0
3	19/10/1984	17:43	Zafferana E.	37.698	15.105	7	3.8	4.6
4	25/10/1984	01:11	Fleri	37.660	15.095	8	4.3	4.4
5	02/02/1986	16:10	S. G. Bosco	37.653	15.163	7	3.8	4.1
6	29/01/1989	07:30	Codavolpe	37.705	15.165	7	3.8	3.4
7	29/10/2002	10:02	Bongiardo	37.674	15.143	8	4.3	4.5
8	29/10/2002	17:14	Milo	37.717	15.118	7	4.0	3.9
9	26/12/2018	02:19	Fleri	37.648	15.117	8	4.3	4.8