Stromboli: the lighthouse of the Mediterranean
Stromboli has been erupting almost without pause for the whole of recorded history — a small blast of glowing lava every 10 to 20 minutes, hundreds of times a day. Ancient sailors steered by its glow. It is the volcano that gave its name to an entire eruption style, and it is still at it tonight.
By VolcanoDB Research Team. Data: Smithsonian Global Volcanism Program (Stromboli, id 11) and INGV Osservatorio Etneo. Live status verified Oct 28, 2026.
A volcano that never stops
Stromboli is the northernmost of Italy's Aeolian Islands, a 924-metre cone rising straight out of the Tyrrhenian Sea north of Sicily. The whole island is the volcano — about 500 people live in villages at its foot. What makes it famous is its metronome: Stromboli produces roughly 300 to 500 small explosions a day, lobbing incandescent clots of lava from vents at the summit. Because the bursts are so frequent and so bright at night, mariners have used Stromboli as a natural beacon for centuries — the "Lighthouse of the Mediterranean."
Our Smithsonian GVP record logs this persistent activity as a single ongoing eruption that has run, with brief pauses, since the 1930s — which is why the last catalogued start date in the database is 1934 even though the volcano is unmistakably active in 2026. You can watch its live status alongside the rest of the world's restless volcanoes on our active volcanoes tracker and erupting-now dashboard.
The eruption style named after it
Volcanologists classify eruptions by behaviour, and one whole category is named after this one island. A Strombolian eruption is the rhythmic, relatively mild explosion of gas-charged basaltic lava — a bubble of gas builds up in the conduit, bursts, and throws out bombs and cinders, then the cycle repeats minutes later. It happens because Stromboli's magma is fluid enough to let gas separate into big bubbles rather than shattering the rock in a single catastrophic blast. On the spectrum of eruption styles, Strombolian sits near the gentle end — far below the stratosphere-piercing Plinian blasts of a volcano like Vesuvius.
The exception that kills: paroxysms
The danger at Stromboli isn't the everyday fireworks — it's the rare, much larger explosion called a paroxysm. Every so often the system clears a deeper, gassier batch of magma all at once, and the result is a blast tens of times bigger than normal. On July 3, 2019, a paroxysm with almost no warning showered the upper slopes with hot material and sent an ash column nearly 5 km high. It killed a 35-year-old hiker, Massimo Imbesi, on the trail below the summit. A second paroxysm struck on August 28, 2019. Earlier major paroxysms hit in 1930, 2002, 2003 and 2007.
Our eruption database makes the split visible. Of Stromboli's size-rated eruptions, 11 rate VEI 2 — the everyday persistent activity — while 6 reach VEI 3, the paroxysmal events that occasionally turn deadly. That two-speed record is the whole safety story of the volcano in one chart: almost always mild, occasionally not.
How Stromboli's 22 size-rated eruptions break down by Volcanic Explosivity Index. Select a bar to see what that size means.
Explosive — ash plumes reaching 1–5 km, localized impact.
Of Stromboli's 22 size-rated eruptions on record, the most common was VEI 2 (11 of 22, 50%). Its record is centred on moderate explosive eruptions (VEI 2–3), with larger events far rarer. No eruption on record exceeded VEI 3.
Based on the Smithsonian GVP eruption record. This describes Stromboli's past eruptions only — it does not predict future activity. What is the VEI? · Most explosive volcanoes
The paroxysms also drive lava and avalanches down the Sciara del Fuoco("Stream of Fire"), the great horseshoe scar on the northwest flank that funnels material straight into the sea — the route of the short-lived lava overflow INGV recorded on October 5, 2026. A 2002 flank collapse there even generated a small tsunami that damaged the island's harbours.
Source: Smithsonian GVP (Stromboli, 211040) and INGV. Full data: /11/Stromboli.
Visiting Stromboli — and the rules that keep you alive
Stromboli is reached by ferry or hydrofoil from Sicily (Milazzo) or the other Aeolian Islands. Independent walkers can go up to roughly 400 m on their own; above that, Italian civil protection restricts access and you need a licensed guide — the exact ceiling moves up and down with the volcano's activity, so it can be lowered at short notice after a paroxysm. The classic trip is an evening guided climb timed to watch the explosions glow against the dark, or a sunset boat tour that views the Sciara del Fuoco from the water.
The 2019 death is the reminder that matters: Stromboli's reliability is exactly what makes a paroxysm so dangerous — people on the slope aren't expecting one. Always check the current alert level and the day's permitted altitude before booking. Prefer other options? Europe's other active volcanoes include Etna, a short hop away on Sicily.
Compare guided hikes, crater walks, and day trips near Stromboli from local operators in Italy.
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Stromboli, quick answers
Is Stromboli erupting right now?
Yes. Stromboli is in near-continuous eruption and has been for the whole of recorded history. As of late 2026 Italy's INGV keeps it at the Yellow alert level (level 2 of 4) with an Orange aviation code, with ordinary Strombolian explosions from the summit craters and occasional short lava overflows onto the Sciara del Fuoco — the most recent on October 5, 2026. 'Erupting' is Stromboli's normal state, not an emergency.
What is a Strombolian eruption?
A Strombolian eruption is a rhythmic series of mild-to-moderate explosions that throw glowing blobs of lava, cinders and bombs tens to hundreds of metres into the air, separated by minutes of relative calm. The style is named directly after Stromboli, which does it 300–500 times a day. It's one of the gentler eruption styles — far smaller than the ash-column blasts of a Plinian eruption.
Did Stromboli kill anyone?
Yes. On July 3, 2019, a sudden paroxysm — a much larger explosion than Stromboli's usual bursts — showered the upper slopes with hot material and sent an ash column nearly 5 km high. It killed a 35-year-old hiker, Massimo Imbesi, on the trail below the summit. A second paroxysm followed on August 28, 2019. These rare, violent events are why the upper mountain is off-limits without a licensed guide.
Can you climb Stromboli?
Partly. Independent hikers can walk to around 400 m on their own, but access to the summit craters (about 924 m) is restricted and requires a licensed mountain guide, with the exact altitude limit set by civil-protection authorities and raised or lowered with the volcano's activity. The classic experience is an evening guided climb to watch the explosions after dark, plus boat tours that view the Sciara del Fuoco glowing from the sea.
Continue exploring
Climbed Stromboli recently? Tell us the altitude limit your guide was working to on the day — civil protection changes it with the volcano's mood, and we keep this page current from reader reports and INGV bulletins.