Etna volcano update: Earthquake swarms under eastern and western flanks
Mon, 28 May 2018, 16:4716:47 PM | BY: T
Recent earthquakes under Etna volcano
Depth vs time of recent quakes
The volcano is becoming increasingly restless. Two earthquake swarms have occurred during the past days:
Bocca Nuova on 25 May 2018
The first was at medium depths (mostly 10-30 km) beneath the eastern flank during 24-26 May, the second one started yesterday and is still continuing under the western flank at depths around 5-10 km. Both could indicate an intrusion of magma, and tremor levels are slightly elevated. Whether this heralds a new eruption in the near future (days, weeks?) is matter of speculation. So far, the quakes have been relatively weak.
When we visited Bocca Nuova last Saturday, we noticed relatively strong, pulsating gas emissions from not-very-deep seated explosions inside the main western vent. According to the mountain guides, this activity had increased, as well as degassing from some areas at the southern rim of the central crater as well as the NE crater.
Thu, 21 Sep 2017, 21:57
Since last Monday the SE crater is showing small signs of activity again. During last nights weak sporadic glowes were seen from the depression on the eastern slope of the crater and starting this morning small ash emissions are occurring intermittently from the top of the crater. ... Read all