The elevated seismic activity at the volcano continues.
Earthquakes continue to be located at gradually shallower depths between 0.4 and 4 km beneath the south, southeast and east-northeast area of the Arenas crater. Magma continues to squeeze through surrounding rocks and cracks the crust resulting in increased seismic energy and pushing its way into deeper rock layers. On 23 April at 09:20 local time, the strongest M 0.8 volcano-tectonic earthquake at 3.5 km depth was detected.
Meanwhile, vulcanian-type eruptions continue to occur by generating grey ash plumes rising to an altitude of approx. 23,000 ft (7,000 m) in the east-southeast direction. The near-constant degassing accompanies the eruptive activity.
It is inevitable to emphasize that the activity of the volcano may fluctuate and suddenly decrease to lower levels. So far, under current conditions, the alert level for the volcano remains like this for the coming weeks.
Source: Servicio Geológico Colombiano volcano activity update 25 April 2023