The explosive eruption at the volcano continues.
The Volcanic Ash Advisory Center (VAAC) Washington reported near-constant vulcanian-type explosions from the summit vent releasing emissions of ash to elevations between 20,000 ft (6,100 m) and 22,000 ft (6,700 m) towards the western, northern and northwestern direction over the past few days.
Seismic recordings detected an increased number of earthquakes hinting elevated fluid movements of gas, water and possibly magma under the surface. Volcano-tectonic earthquakes have been located mainly beneath the northwestern and northeastern slopes of the volcano at depths between 3 and 7 km from the crater. Over the past week, the largest quake happened to occur on 25 July with a magnitude M 1.7.
The alert status remains at Yellow.
Source: Servicio Geológico Colombiano volcano activity update 28 July 2023