The UWI Seismic Research Centre says seismic activity at La Soufrière in St Vincent and the Grenadines has remained low since the tremor associated with the explosion and ash venting on April 22.
In the last 24 hours, only a few small earthquakes were recorded.
It notes several photos of the crater taken by pilots of the British Guard ship on June 11 have shown no lava dome being present but several actively steaming hydrothermal areas.
Thermal anomalies continue to be detected but do not indicate an explosive event is imminent but that there is a source of heat, most likely from a small body of magma left over, close to the floor of the Summit Crater.
Work is underway to restore capacity lost during the explosive phase of the eruption.
This will continue until the end of June.
UWI SRC says the continued presence of near surface hot spots, daily seismic activity and substantial degassing is proof that the volcano is still in unrest and escalation in activity may still take place with little or no warning.
The volcano is at alert level Orange.