Stromboli

“Strombolian” activity in the place where its definition was born

The term “Strombolian” eruption means an activity formed by explosions of low and medium energy, with the launch of bombs and incandescent lapilli around the crater area. tipica esplosione Stromboliana
Periodically, this activity is also interspersed with the emission of lava flows along the slopes of the volcano .
After a much longer period, some hundreds of years, there can even be very intense explosive activity, which affects a large part of the summit of the volcanic structure. This is the typical activity of Stromboli, and this definition is applied to hundreds of other volcanoes around the world.
Stromboli’s summit craters often change physiognomy and layout. It is typical of this activity that, after a period of lava flow, the plateau where the craters emerge collapses slightly due to the emptying of the superficial magma chamber that feeds into them. Usually there are 5-6 eruptive mouths, aligned north-east and south-west; therefore, we can distinguish between a “central crater” and the north-east and south-west craters. Over the last twenty years, this activity has taken place in 2002-03, 2007 and 2014. The type of activity is distinguished depending on the frequency of the explosive events.
The basic activity is “puffing”, i.e. small puffs of steam from all the craters; each puff occurs every 3-4 seconds. When some gas accumulates under the mouth of the volcano, it can cause a jet of steam up to 30-40 metres tall, which may also be reddish in colour. Usually, but depending on the volcano’s pattern in a certain period, this type of activity takes place every 15-20 minutes, often from one of the outermost craters.
Then there is the real explosion: below the crater several bubbles of gas can accumulate from the depths, coming together to form bubbles that are a little bigger. At some point the magma is no longer able to contain them and explodes bringing with it scraps of lava in the form of bombs (if larger than 6 cm) and lapilli (1-6 cm). These types of explosions are the most common and most spectacular and have an interval of 10-20 minutes depending on the volcano’s pattern of activity. In fact, there are periods in which the volcano is “more active” due to a recent rise of magma from the depths, and periods in which it is more “relaxed”, perhaps after a slightly bigger eruption, such as the escape of lava flows.

Stories of the sea and shipwrecks. The wrecks of the Aeolian Islands

Salina, the green island with twin mountains

Volcanoes as a natural art form

The hidden part of the Aeolian Islands

Lipari Castle, “fused” with the lava

“Strombolian” activity in the place where its definition was born

Panarea and its history

The Village of Capo Graziano

The Thermal Baths of Saint Calogerus

The senses tell The salt lake of Lingua

The Gran Cratere of the Fossa: when the volcano becomes a sculptor

Myths and legends about volcanoes

Filicudi: small island, big history

Lipari at the centre of Mediterranean history

Stromboli, the volcano that breathes

The prehistoric village of Cala Junco

The stacks of Panarea

The senses tell The Sciara del Fuoco

The Aeolian Islands, where volcanology was born

Pollara, between poetry and beauty

The underwater morphological elements of the Aeolian Islands

The Cathedral of Lipari and the Norman Cloister of the Benedictine Monastery

The senses tell The Stacks of Panarea

Filicudi, a submerged paradise

Vulcano, the youngest of the Aeolian works of art

The senses tell The Pumice Quarries of Lipari

The pure white of the pumice quarries

How pumice is formed

The Sciara del Fuoco

The summit craters

Seven islands, dozens of volcanoes

The underwater fumarolic activity of Lisca Bianca

Malvasia delle Lipari DOC

Panarea, where sea and volcanoes become sculptors

The ancient production of salt

At the heart of trade in history

The polis of the living and the necropolis of the dead

The 2002-03 eruption

Lipari, where history intertwines with volcanoes to create archaeology

The malleability of Vulcano’s mud

The senses tell The summit craters

The senses tell The Village of Capo Graziano

“Vulcanian” eruptions

Where do Vulcano’s gases come from?

The salt lake of Lingua

Tsunamis: a not uncommon phenomenon in Stromboli

Between brush strokes of sulphur and clouds of steam: the fumaroles of the port of Vulcano

Alicudi, where time has stood still