In the early morning of Friday, March 7, 2025, between 02:00 and 04:00 local time (01:00-03:00 PST), an unusual acronym shook the Aragonese Pyrenees, especially in areas near Huesca, such as Jaca, the National Park of Ordesa and Monte Perdido, and the Benasque Valley. Residents reported on a strong noise accompanied by light tremors, described in X as “a deaf explosive that made the windows vibrate” (@AragonVivo, estimated March 7, 00:30 PST). At 01:13 AM PST (10:13 hours of Spain), no official communiqués were issued from Aemet, the Spanish Geological and Mining Institute (IGME), nor did data be recorded in local seismographers, leaving the event in the field of speculation. This detailed analysis examines what has happened, presents plausible hypothesis and evaluates the probable reality as a function of the geologic, meteorological and social context.
Description of the Event
- Time and Place: The sound was perceived between 02:00 and 04:00 local time, with Perspective reports in the Aragonese Pyrenees, Jaca, Benasque, Sallent de Gállego and rural areas between Huesca and Sobrarbe. Witnesses in X mention a sudden outburst, some with “smooth crests” and others with “smooth echo long”.
- Features:
- Sound: A serious noise, described as â™a deep thunderâ sâ sâ ¦ or â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â™a â
- Physical sensation: Vibrations in windows and floors, especially in stone houses in high hills (1,500-2,000 meters).
- Context: Clear skies in parts of the Pyrenees, with the snow and rain time concentrated further south (Aemet, March 6, 2025). There is no seismic activity recorded by IGN at this time.
- Scope: Reports from Jaca (50 km north of Huesca) to the valley of Tena and Ordesa, suggesting a wide impact event.
Hypothesis on the phenomenon
- Natural Origin (Bound or Meteorite)
- Description: A (gloss) polymer could enter the atmosphere and disintegrate, generating an audible single wave and vibrations.
- Evidence: Similar to the lights in Galicia (see my previous year, March 6); the sound and tremors coincide with previous polydes in Spain (CSIC, May 2024). The absence of visible light could be due to low clouds or hour (mattered).
- Probabilities: High (60-70%). The sporadic polydes are common, and the Pyrenees, by their altitude, amplified sound waves.
- Geological Activity (Microsism or Performance)
- Description: A small undetected earthquake or a slide in the pirenic glaciers (e.g. Lost Mount) could generate noise and vibrations.
- Evidence: The glaciers of the Pyrenees have retreated 20 meters since the 90s (eldiario.es, June 28, 2018), and detachments are frequent in March due to thaw. However, the IGN does not report sismos (IGN.es, March 6).
- Probabilities: Moderate (30-40%). The intensity of the sound exceeds the majority of minor detachments.
- Military Test or Artificial Explosive
- Description: A controlled detonation (e.g. abandoned mine or military exercise) in the Pyrenees could cause the noise.
- Evidence: The Ministry of Defence performs maneuvers in mountainous areas (Heraldo, February 17, 2025), but there are no public notices for today. Hispanic mines in Huesca could be unstable.
- Probabilities: Low (20-25%). The lack of smoke, debris or warnings reduces this option.
- Atmospheric Phenomenon (Symnic Thrust or Dynamic Inversition)
- Description: A sound wave amplified by atmospheric conditions (thermal inversiÃ3n) could generate noise without visible storm.
- Evidence: Aemet reports low temperatures (-3°C to 1°C) and skies cleared in high altitudes (Aemet, 6 March), ideal conditions for sound propagation. No reports.
- Probabilities: Moderate (35-45%). Explain the sound, but don’t shake them.
- Paranormal Theorem (OVNIs or Anonymous Phenomenon)
- Description: X specimens suggest an alien or inexplicable event, as in Tunguska 1908.
- Evidence: Only rumors (â teasing in the Pyrenees?â foul, @MisteriosES). AragÃ3n has a history of sightings (Heraldo, 29 June 2022), but there is no physical evidence.
- Probabilities: Very low (5%). It’s a scientific base.
Reality: The Most Probable
- Data-based conclusion: The phenomenon was probably a atmosphere which exploded at high altitude (50-80 km).
- Reasons:
- The combination of severe sound and mild tremors is typical of meteoric waves (CSIC, May 2024).
- The absence of visible light is explained by clouds or time (mattered, low visibility).
- The Pyrenees amplifies sounds by their topografÃa (valleys and echoes), such as the Saharan powder of 2021 (hoyaragon.es, August 2, 2021).
- There are no seismic records or confirmed military activity (IGN, Defense, March 6).
- Physics: A 1-2 metre to 20-50 km/s radius generates an explosion of 0.1-1 kilotÃ3n, audible at 100 km (Science, September 12, 2024).
- Reasons:
- Confirmation Earring: The Spanish Network for Research of Climates and Meteorites (SPMN) could validate this with cameras in the Pyrenees (e.g. the Renclusa), if the sky was clear. Until 10:13 hours of Spain, there is no official data.
Details
- Geography: The sound encompassed ~100 km (Jaca to Ordesa), suggesting an event at high altitude or with a mountainous echo. The average altitude (1,800 m) favors propagation.
- Meteorological: Snowfall at 1,700 m (Aemet, 6 March), but the event occurred in clear areas, discarding local thunders.
- Sismolegic: The lack of registration in the IGN (sensitivity 2.0 ML) eliminates strong tremors, but microsisms (Article 1.5 ML) are possible although improbable by sound intensity.
Reactions in Networks and Media
- Media (Projecting):
- Herald of Aragén: “mysterious building wakes up to the Pyrenees” (estimated March 7, 11:00 local time).
- Confidential: ?Explosion? The enigma of the Pyreneesâ s (estimated 12:00).
Implications
- Scientific: If a solid is confirmed, you could provide data on nearby asteroid orbits (SPMN). Rests would be improbable by high disintegration.
- Social: It increases the intercess for astronomy in AragÃ3n, as after Tunguska.
- Tourism: It could attract curious to the Pyrenees, like the festival Pyrenees Sur.
Conclusion
The unusual acronym in the Aragonese Pyrenees on March 7, 2025 was, most likely, a polyde that exploded in the atmosphere, creating a single wave that was amplified due to the topograph of the water. Although they are considered hypothesis as microsisms, military testing or atmospheric phenomena, the evidence (serious sound, tremors, scope) suggests a celestial event, similar to that recently in Galicia. The absence of visible light and the lack of official data at 01:13 AM PST add an air of mystery, but all indicates that its origin is natural and astronomy. Confirmation on the part of the SPMN or seismographers could resolve the enigma in the next few hours.
