The Argentine Mining Geological Service (SEGEMAR) reported that new ash emissions occurred from the summit vent yesterday.
At 05:43 PM, the monitoring instrument in the volcano’s vicinity registered a long-period (low-frequency) earthquake. The quake has been presumably associated with elevated fluid movements gas, water and possibly magma under the edifice. The elevated activity resulted in a short-lived pulse of a minor amount of ash emissions from the crater. The small ash plume rose about 180 meters above the vent and dissipated to the SE.
From available satellite images, it seems the small lava pond continues to be active at stable conditions suggesting a delicate equilibrium between heat and magma supply and loss (through cooling and mild emissions during degassing).
Source: Argentine Mining Geological Service volcano activity update 3 September 2023
#VolcanVillarrica, 2 septiembre: aquí te mostramos cómo fue el pequeño pulso eruptivo de las 16:43 hrs. El evento generó un movimiento sísmico sólo detectable con instrumentos. Pozo de lava se mantiene activo en el fondo del cráter. Altas concentraciones de dióxido de azufre. pic.twitter.com/WdZijtHOsr
— P.O.V.I. (@povi_cl) September 3, 2023
