An energetic explosion occurred at the volcano in the night of 2 February.
At about 10:00 PM local time, the above-average eruption produced incandescent lava bombs, surpassing hundreds of meters above the edifice. Much of the ejected bright material landed within the caldera. However, some of the ejecta was being thrown onto the outer slopes, forming glowing rock falls as visible in the webcam screenshot.
Whether the powerful eruption took place from the cinder cone or from the actively growing lava dome is unclear yet.
Ash emissions reached up to 3,300 meters (10,800 ft) altitude and dissipated southwest.
The seismic network reported a signal with a maximum amplitude of 28 mm and a duration of 140 seconds.
The continuing lava dome is actively growing as viscous magma continues to rise into it and form a faint glow on the top of the dome. Thus, it extrudes lava dome blocks into slowly advancing lava flow (so-called coulée) on the northern flank.
In order to mitigate risk, people are advised to avoid the area within a radius of 2 km and 3.5 km from the crater.