Flores and the Lewotobi eruption

Update 8 Nov 2024 As commented below, NASA has produced a new image and image slider showing the ash cloud from the eruption: https://earthobservatory.nasa.gov/images/153549/mount-lewotobi-laki-laki-spews-ash The lava flow running east is the one produced in January-March. The blacker ash covers around 20km>sup>2 in this image. That suggests a volume of 0.01 to 0.001 km3: no more…

Ibu, an overlooked caldera

Indonesia is a country of volcanoes. An impressive amount of subduction-related volcanoes. The country features four different volcanic arcs, chains of volcanoes above subducting oceanic plates. The most important one is the Sunda Arc, home to way too many famous volcanoes like Toba, Krakatau, Galunggung, Merapi, Semeru, Bromo, Kawah Ijen, Batur, Agung, Rinjani, or Tambora.…

The collapse of Anak Krakatau

The parent is famous. The shock waves of the eruption of Krakatoa in 1883 reverberated around the world – in the atmosphere, in the sea and in the news media. This was the first large eruption in the era of instant communication. The eruption itself was luckily on an island at some distance from human…

Tambora: making history

In between Lombok (the location of infamous Rinjani) and Flores (with the magic lakes of Kelimutu) is the island of Sumbawa. It lies in the heart of the most volcanic region of the most volcanic nation on Earth. The two largest eruptions of the last 1500 years both came from this region. Lombok has never…

Bawean Island

And then there was a volcano no one has ever heard off. It is on an island that is far off-grid and which takes a 9-hour ferry to get there. (There is a small plane, if you are happy to travel without luggage.) The volcano has long gone extinct. All that remains is this island,…

Mount Merapi and the temple it dooms

For a brief period this was the nation’s capital. During the war of independence (called a ‘police action’ by the Dutch, in an older echo of some current events), Yogyakarta served as the seat of the Republic between 1946 (the fall of Jakarta to the Dutch) until 1948. Indonesia later rewarded the city by granting…

Ten volcanoes with super-eruption potential: Part I

Where will the next VEI 8 supereruption (>1000 km3 of erupted volume) of the planet take place? This is the question that these articles are here to answer. To put it another way, this list will evaluate and rank the supereruption potential of several volcanic systems. I didn’t use any objective parameter to calculate which…

Did you notice the erupting Supervolcano?

Carl This post was written by Carl in 2012, during an eruption of Soputan. Some updates have been done and some hindsight has been added. Some volcanoes just can’t catch a break. Imagine for a little while that you are a bona fidé supervolcano. You are the largest of your type on the planet, you…

Prelude to Krakatau. III

In Part 1 and Part II we went over the current state of Krakatau and its history over the 300 years before the Big One. Now it is time to find out what caused the Big Bang, whether it is a recurrent offence, and to try our hand at the big question: why is such…