Reports of volcanic Teide unrest

June 20 2014 12:00 AM

Small seismic series in Tenerife

🇬🇧 🇺🇸 Small seismic series between Vilaflor and Guía de Isora with 11 earthquakes at a depth of between 2 and 7 km and a maximum magnitude of 1.8. None were felt by the population (IGN,2014).

🇪🇸 🇮🇨 Pequeña serie sísmica entre Vilaflor y Guía de Isora con 11 terremotos a una profundidad de entre 2 y 7 km y una magnitud máxima de 1,8. Ninguno fue percibido por la población. (IGN, 2014)

June 20 2014 12:00 AM

Teide degassed more hydrogen sulfide than usual

🇬🇧 🇺🇸 From June through August 2016 there was a change in degassing at Teide, including increased H₂S (hydrogen sulfide) emission. On the 2nd of October, a seismic swarm occurred over five hours, with at least 766 earthquakes detected. These changes suggest magma was rising deep below and releasing fluids into the shallow hydrothermal system (IGN,2014).

🇪🇸 🇮🇨 De junio a agosto de 2016 se produjo un cambio en la desgasificación del Teide, que incluyó un aumento de las emisiones de H₂S (sulfuro de hidrógeno). El 2 de octubre se produjo un enjambre sísmico de más de cinco horas de duración, en el que se detectaron al menos 766 terremotos. Estos cambios sugieren que el magma estaba subiendo desde las profundidades y liberando fluidos en el sistema hidrotermal superficial. (IGN, 2014)

January 23 2025 2:00 PM

PEVOLCA scientists agree on the “anomalous” activity of Teide, although there are no signs of an eruption

PEVOLCA meeting on January 23rd 2025. Sourced from Gobierno de Canarias (2025)
PEVOLCA meeting on January 23rd 2025. Sourced from Gobierno de Canarias (2025)

🇬🇧 🇺🇸 Experts from the Scientific Committee for the Evaluation and Monitoring of Volcanic Phenomena (CCES), provided for in the Special Plan for Civil Protection and Emergency Response due to volcanic risk in the Autonomous Community of the Canary Islands (PEVOLCA), agree in describing the volcanic activity of Teide as “anomalous”, although the signs “do not seem to be precursors of an eruptive process in the short term, but they do imply an increase in the probability of it occurring in the medium to long term”. (Gobierno de Canarias, 2025)

🇪🇸 🇮🇨 Los expertos del Comité Científico de Evaluación y Seguimiento de Fenómenos Volcánicos (CCES), previsto en el Plan Especial de Protección Civil y Atención de Emergencias por riesgo volcánico en la Comunidad Autónoma de Canarias (PEVOLCA), coinciden en calificar como “anómala” la actividad volcánica del Teide, aunque los indicios “no parecen ser precursores de un proceso eruptivo a corto plazo, pero sí suponen un aumento en la probabilidad de que se produzca a medio largo plazo”. (Gobierno de Canarias, 2025)

January 24 2025 1:00 PM

GeoTenerife twitter thread

Posting to Twitter and Bluesky, GeoTenerife breaks down the recent Pevolca press release, explaining what it means and why it’s relevant to residents and tourists on the island of Tenerife. We also used this opportunity to show where resources regarding eruption preparedness can be found, including the Tenerife emergency plans openly accessible on our Volcanic Readiness page.

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February 6 2025 7:44 AM

3.3 mbLg earthquake 65 km north of Tenerife

Sourced from IGN (2-25)
Sourced from IGN (2-25)

🇬🇧 🇺🇸 At 07:44 am local time, IGN detected a 3.3 mbLg earthquake 75 km north of Santa Cruz, Tenerife. The earthquake occurred at a depth of 47 km. This follows an earthquake of 2.9 mbLg which occurred yesterday 110 km North of Santa Cruz, 5th February 2025, at 03:51 am at a depth of 75 km into the earth.

Learn more at IGN

🇪🇸 🇮🇨A las 07:44 a. m., hora local, IGN detectó un terremoto de 3,3 mbLg a 75 km al norte de Santa Cruz, Tenerife. El terremoto se produjo a una profundidad de 47 km. Esto sigue a un terremoto de 2,9 mbLg que ocurrió ayer 110 km al norte de Santa Cruz, el 5 de febrero de 2025, a las 03:51 a. m. a una profundidad de 75 km en la tierra.

Más información en IGN