Mount Etna, Sicily, Italy (37.7°N, 15.0°E)
ETNA Radio Observatory
Right now
Etna: 35 · global avg: 53
Quieter than: Eskdalemuir (65), California (72), Alberta (75)
Latest Spectrogram
It's been a lively week at the Etna station, with some exciting spikes in activity! We saw a really strong peak reaching 95, and a good number of days where things were quite energetic, with 25 readings going above 80. Things did quiet down at other times, but overall, it was a dynamic period for the Schumann Resonance here.
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Open aimag.me30-day hourly activity
Each cell is one UTC hour. Click any active cell to explore that day.
Notable events (last 30 days)
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95
View day →2026-05-15
The rightmost portion of the spectrogram shows sustained, high-intensity vertical bursts that span the entire frequen…
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95
View day →2026-05-15
The rightmost portion of the spectrogram shows persistent, high-intensity vertical activity extending across the 6-40…
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95
View day →2026-05-15
The rightmost portion of the spectrogram shows sustained, high-amplitude vertical activity across all Schumann resona…
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95
View day →2026-05-07
The rightmost portion of the spectrogram displays persistent, high-intensity yellow and red coloration across all Sch…
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95
View day →2026-05-07
The rightmost portion of the spectrogram shows persistent, high-intensity horizontal bands across the 5-40 Hz range, …
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95
View day →2026-05-07
The rightmost portion of the spectrogram displays persistent, high-intensity yellow and red coloration across all Sch…
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95
View day →2026-05-07
The rightmost portion of the spectrogram displays high-intensity, broadened horizontal bands across all Schumann reso…
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95
View day →2026-05-07
The rightmost portion of the spectrogram displays sustained, high-intensity yellow and red horizontal signatures acro…
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95
View day →2026-05-07
The rightmost portion of the spectrogram displays elevated, high-intensity signal levels across all Schumann resonanc…
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95
View day →2026-05-06
The rightmost portion of the spectrogram shows sustained, high-intensity yellow and orange vertical activity across t…
Last 14 days
Quick scan of recent activity — tap a day for the full check-in.
Explore
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Live lunar phase, illumination, and the 2026-2027 full moon calendar.
Open calendarETNA — volcano-flanked seismic lens
ETNA sits on the eastern slopes of Europe's most active volcano, in a region where tectonic stress and space weather intersect in fascinating ways.
Operated by INGV (Italian National Institute of Geophysics and Volcanology), it combines Schumann resonance monitoring with seismic observation — a rare dual-purpose site.
Mediterranean storms and occasional volcanic tremors show up in its signal, making ETNA one of the most distinctive-looking spectrograms in the network. Visit etna-ero.it
Trust & authority
ETNA Radio Observatory
Operating since 2016 · 10 years of continuous monitoring
Frequently asked questions
How does ETNA measure Schumann resonance?
ETNA uses a coil magnetometer tuned for ELF/VLF frequencies (0–105 Hz). It produces an 8-hour rolling spectrogram updated several times per day, visible at etna-ero.it.
Why is ETNA important to our network?
ETNA sits on an active volcano and is operated by INGV (Italy's national volcanology institute), which combines seismic monitoring with electromagnetic observation. It is our only dual-purpose geophysical site.
When was its last major event?
Check the Notable events section above — it lists the top 10 highest-score events at ETNA from the last 30 days, each linked to its full daily context.
How reliable is the data?
INGV is Italy's national scientific authority for geophysics. The ETNA station has been operating since 2016 and the data is used in INGV's own research. We cross-validate readings against other stations with our IDW weighting algorithm.
Where does the raw data come from?
Raw spectrogram images come directly from etna-ero.it. We ignore known artifacts (50 Hz mains interference) and focus on the 3–40 Hz Schumann band. Visit etna-ero.it for the original feed.
