A new seismic swarm started to occur beneath the volcano, the Instituto Geográfico Nacional (IGN) reported.
Between 04:00 and 07:20 UTC yesterday morning, the anomalous microseismic activity was observed in Cañadas del Teide, southwest of Pico Viejo, on Tenerife. At least 500 earthquakes were detected in the same area where similar activity has been recorded in previous years (October 2016, June 2019, and June-July 2022).
The sequence began with 10 small earthquakes, each with a magnitude below M 1.1, occurring at depths of 8 to 12 kilometers. These were followed by long-duration signals with high-frequency quakes and no clearly defined seismic phases. Subsequently, the activity evolved into a series of hundreds of small, similarly sized events occurring at nearly regular intervals, described as resembling a „drumroll.“
Because of the faintness of the seismic signals, some of the lower-magnitude events were detected by automated systems but lacked the quality needed for inclusion in the official IGN catalogue.
Source: Instituto Geográfico Nacional volcano activity update 15 November 2024