# The 2014 Effusive Eruption at Stromboli: New Insights from In Situ and Remote-Sensing Measurements
## 3 Results
\begin{table}
\begin{tabular}{c c} \hline \hline
**Date** & **Live-Cams Observations** \\ \hline \multicolumn{3}{c}{ Frequent explosive activity (\(\sim\)15 explosions/hour)} \\
30 May 2014–31 Jul 2014 & Overflows \\ \multicolumn{3}{c}{ Landslides} \\ \hline
01 Aug 2014–05 Aug 2014 & Increased explosion frequency (up to 30 explosions/hour) \\ \hline
06 Aug 2014 at 08:50 & Overflow (between NEC2 and NEC-hornito) \\ \hline
06 Aug 2014 at 11:00 & Arcuate fractures on the NE crater rim between NEC1 and NEC-hornito \\ \hline
06 Aug 2014 at 12:22 & First incandescent blocks from the NEC2/NEC-hornito into the sea \\ \hline
06 Aug 2014 at 12:29 & Overflow (between NEC-hornito and SWC) \\ \hline
06 Aug 2014 12:32–13:00 & Landslide (N flank of the crater terrace) \\ \hline
06 Aug 2014 12:35–13:00 & Incandescent blocks accumulation along the coast \\ \hline
06 Aug 2014 at 13:08 & Overflow from NEC-hornito reached the coast \\ \hline \multicolumn{3}{c}{ Three hot “gravical flows” from the NEC-hornito along the SdF, reached the coast and} \\ \multicolumn{3}{c}{went on spreading along the sea surface for several tens of meters} \\ \hline
06 Aug 2014 at 14:50 & Overflow from NEC-hornito reached the coast \\ \hline
06 Aug 2014 at 15:46 & Overflow from NEC-hornito reached the coast \\ \hline
06 Aug 2014 at 16:02 & Hot “gravical flows” from the NEC-hornito along the SdF \\ \hline
06 Aug 2014 at 16:08 & Overflow from NEC-hornito reached the coast \\ \hline
07 Aug 2014 –02:30 & Hot “gravical flows” from the NEC-hornito along the SdF \\ \hline \multicolumn{3}{c}{- NEC-hornito lava decreased} \\
07 Aug 2014 -03:00 & - Explosive activity from NEC increased \\ \multicolumn{3}{c}{- Increased size of the hot avalanche deposit} \\ \hline
07 Aug 2014 at 03:40 & Hot “gravical flows” from the NEC onto the Pianoro flat area \\ \hline \multicolumn{3}{c}{NE flank of NEC1 started to collapse} \\
07 Aug 2014 04:01 & Lava flow from the NEC towards the Pianoro flat area \\ \multicolumn{3}{c}{Hot “gravical flows” from the NEC-talus onto the Pianoro flat area and along the SdF} \\ \hline
07 Aug 2014 05:01 & Downslope curved fracture opened on the flank of the cone \\ \hline \multicolumn{3}{c}{ V1 opened at 05:04 and V2 at 05:16, both at \(\sim\)650 m a.s.l.} \\
07 Aug 2014 05:04–05:16 & Landslides onto the Pianoro flat area and along the SdF \\ \multicolumn{3}{c}{Lava flow onto the Pianoro flat area} \\ \hline
07 Aug 2014 05:30 & Lava flow along the SdF \\ \hline
07 Aug 2014 -06:02 & Hot “gravical flows” from the NEC-talus reached the coast \\ \hline
07 Aug 2014 06:24 & Lava flow from V1 reached the coast \\ \hline \end{tabular}
\end{table} 
Table 1: Summary of the eruptive activity during the run-up and onset phases of the 2014 flank eruption, as derived from the camera monitoring network. in the explosion rate and intensity was recorded on 6 August 2014 morning, especially from the NEC. Several overflows occurred since 08:50 (flows F1 to F3 in Figure 4), and the rim of the crater terrace started to be clearly unstable since 11:00, when three arcuate fractures on the NE crater rim formed between NEC1 and NEC-hornito (Table 1, Supplementary Materials). The GBInSAR recorded an increase in the displacement rate (since 10:00 of 6 August 2014) in both the external flank of the crater terrace and the NEC-talus. The maximum displacement was recorded mainly in the NEC-hornito area (Figure 5a). Rock-falls started to occur at 12:22, and soon after a lava flow erupted from the saddle between the NEC-hornito and the SWC (Flow F2A in Figure 4a), expanding N along the SdF (12:32). Between 13:00 and 14:21, the GBInSAR recorded a large loss in the SAR coherence in the NEC-hornito, consistent with the occurrence of fast-moving material (landslides and/or overflows) from the NEC-hornito (Figure 5b). Three landslides (starting at 14:05, 14:06, and 14:07, Figure 6), described as rock-falls/gravel slides evolving in rapid gravel flows, were directly observed (Figure 2b).