Instruments recorded 306 very low magnitude earthquakes (M [less]

Weak volcanic unrest continues at the volcano. During 21-23 Dec 2018, another small seismic swarm took place under the volcano totaling 88 recorded earthquakes of very small magnitudes at shallow depths (less than 2.5 km beneath the summit of the lava dome). Read more... read all

In the first half of the year, seismicity progressively began to increase, culminating in an energetic earthquake swarm in April. During the second half of 2018, at least 6 additional swarms of earthquakes have occurred, dominated by small earthquakes related to rock fracturing at depth, likely caused by increased pressure and intrusion of fluids (gasses, water, magma) at depth.
This trend has been continuing during the past weeks and days and is being closely monitored by the Guadeloupe Volcano Observatory (Observatoire Volcanologique et Sismologique de Guadeloupe, OVSG-IPGP) who maintain alert level "yellow". [less]