Another swarm of volcano-tectonic earthquakes occurred during the night. This was the fourth swarm since 24 October. The swarm lasted from 17:20 last night to 01:20 this morning, and had 25 earthquakes. Most of these were large enough to be located, and were at shallow depths beneath the crater. The earthquakes were slightly larger than those in the recent swarms.
Apart from the volcano-tectonic earthquakes, the level of activity has been low, with a few rockfall signals and one long-period earthquake recorded.
The volcano is very cloudy this morning, and so no views of the crater have been possible.
The volcano remains in a highly dangerous condition. Pyroclastic flows and possibly another explosive eruption could start with little warning. All residents of Montserrat are urged to exercise caution while visiting the evacuated zone. The Tar River and Long Ground areas are extremely dangerous, and people entering these areas face a high risk of death.