Seismic Activity Detected Beneath Mount Teide in Tenerife

Recent seismic activity has been recorded beneath the island of Tenerife, particularly in the vicinity of Mount Teide, according to a report from the National Geographic Institute (IGN). This activity has raised interest among both scientists and residents, given the significance of Mount Teide as a prominent volcano and a key geological feature of the Canary Islands.

Overview of the Seismic Events

The initial tremors were detected on Saturday, April 11, in the Izaña region, where a total of 16 minor earthquakes were automatically recorded by the IGN. Out of these, 11 were confirmed and accurately located, indicating a robust monitoring system in place. The magnitudes of these earthquakes ranged from 1.0 to 1.9 on the Richter scale, occurring at depths between 3 and 10 kilometers. Such low-magnitude earthquakes are not uncommon in volcanic regions, but their occurrence can provide valuable insights into the geological processes at play.

Experts from the IGN have categorized these occurrences as volcano-tectonic events. This classification suggests that the seismic activity is related to both volcanic and tectonic processes, which is consistent with similar seismic activities noted in the same area from May to November 2025. The similarities in strength and depth between the recent events and those from 2025 highlight the ongoing geological dynamism of the region.

Further Seismic Activity and Analysis

A second wave of seismic activity was noted early on Monday morning, occurring between 12:10 AM and 12:30 AM, west of Las Cañadas del Teide. This phase included two long-period (LP) events, which are characterized by low-frequency pulses, along with several low-magnitude hybrid seismic events. These LP events are particularly interesting to seismologists, as they often indicate fluid movement within the Earth’s crust, which can be associated with volcanic activity.

The IGN indicated that these LP events were similar to those recorded in February and March of this year, although they were of lesser intensity and shorter duration. The occurrence of 38 seismic events during this recent episode demonstrates the active geological environment beneath Mount Teide. Among these, three were manually located at depths ranging from 12 to 13 kilometers in the western section of Las Cañadas del Teide, providing further data for researchers to analyze.

Public Safety and Ongoing Monitoring Efforts

Importantly, the IGN has emphasized that the current seismic activity does not follow the repetitive patterns observed since February. None of the tremors, including both hybrid and LP events, were felt by residents, which is a reassuring factor for the local population. The agency has been proactive in communicating with the public, ensuring that residents are informed about the nature of these seismic events.

The agency reassured the public that this type of seismic activity, which includes hybrid events alongside long-period signals, does not signify an increased risk of volcanic eruption in the near or medium-term future. This statement is crucial for maintaining public confidence, especially in a region where volcanic activity is a significant concern. The IGN’s commitment to transparency and ongoing monitoring is evident in their communication strategy.

Furthermore, due to the low amplitude of the recorded signals, all data regarding the number of events, their magnitudes, and depth ranges remain provisional and subject to further revision. This caution underscores the importance of continuous monitoring and analysis in understanding the complex geological processes at work beneath Mount Teide.

Key points

• A new wave of seismic activity has been detected beneath Tenerife, particularly around Mount Teide.
• Seismic events included 16 small earthquakes in the Izaña area on April 11.
• Magnitudes of the earthquakes ranged from 1.0 to 1.9, with depths between 3 and 10 kilometers.
• Experts classify these events as volcano-tectonic, similar to past activities in 2025.
• A second phase of activity occurred early Monday, featuring low-frequency pulses and hybrid seismic events.
• The IGN confirmed that this activity does not indicate an increased risk of volcanic eruption.
• All data regarding the seismic events are provisional and may be revised.