Nevado del Ruiz volcano (Colombia): M 3.9 earthquake, strongest since 1985, magma reaches shallower levels

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 The elevated seismic activity at the volcano continues.

About 2,600 earthquakes have occurred beneath the southwestern area, of which seven have been located with magnitudes of 2.0 and more, peaking with a maximum magnitude of M 3.9 at 02:16 local time today. This earthquake has become the strongest one at the volcano in monitoring records since 1985.
The earthquake swarm has become shallower at depths between 2 and 4 km, indicating magma shifting inside the volcano's conduit and pushing its way into deeper rock layers.
On the contrary, the degassing activity slightly decreased yesterday, sending gas and water vapor emissions into the NW and SW direction to 6300 m height.
Source: Servicio Geológico Colombiano volcano activity update 6 April 2023

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