Reventador volcano (Ecuador): pyroclastic flow followed eruption

The pyroclastic flow followed vulcanian-type eruption at Reventador on 8 April (image: Benjamin Bernard)

The pyroclastic flow followed vulcanian-type eruption at Reventador on 8 April (image: Benjamin Bernard)

The effusive-explosive eruption of the volcano continues and has remained essentially unchanged.

Near-constant vulcanian explosions continue to take place from the summit crater that reached 4,6 km (15,000 ft) height and drifted north and northwest over the past few days.

Multiple incandescent avalanches continue to be observed, reaching length of at least 900-1,200 meters from the summit vent.

On 8 April, an explosion generated a pumice-and-ash flow caused likely by the eruption column collapse. Pyroclastic flows are deadly, turbulent hot avalanche of lava rock fragments of all sizes embedded in a mixture of turbulent gas and ash racing down slopes

Lahars (mud flows) could also occur if heavy rainfalls remobilise the fresh ash deposits.

Source: Instituto Geofísico volcano activity update 24 April 2025