Category Archives: Physical Volcanology

The science and specifics of Santorini’s volcanic eruptions.

Into the Air: a Sky Filled with Ash, Gas, and Glass

Growing up in the mountains of Colorado I appreciate fresh, clean air. As I inhale, I greatly enjoy the crisp aromic air of Santorini.  In general we take for granted the air we breathe in, we know that it’s oxygen, nitrogen with a little too much carbon dioxide sometimes, and some places are more humid than others. Otherwise most places we go we don’t have to worry about blocks of hot volcanic rock the size of small cars zooming through the air or breathing in high amounts of methane, carbon dioxide, liquid glass, and hot ash.  During the cataclysmic Minoan eruption in 1613±13 BC the air here resembled the latter. Almost instantaneously the air went from out typical Santorini weather to being suffused with acidic gases, ash, pumice, and various rocks filling the sky above. As we went to various outcrops on the island we saw evidence of the massive amount of material that filled the sky’s that day 3600 years ago.

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Up Close & Personal: Rock Edition

For the last week, I’ve been outside under the Santorini sun drawing and describing the post Minoan eruption stratigraphy of the island from different localities. I’ve been attempting to find answers to the history of the island’s geography through the rocks. And these rocks are so easily taken for granted, sitting while hundreds of tourists walk by unfazed by the stories they could tell. But that’s why I’m here. My purpose in coming to Santorini was to study the geology and write about what I learn. It’s my goal to share my knowledge and translate the more advanced topics of geology to layman’s terms so those reading can understand the work I’ve completed.

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Moving Megatons: The Excavational Eruptions of Calderas

I’ve just learned the full story of the Minoan eruption. In my mind, I’m imagining 60 cubic kilometers of earth. This is about the size of a block of the Los Angeles basin, by volume; a massive amount of land. I can see all this land being ejected by the volcano miles into the sky, over a span of 24 hours. Such is the case of Santorini’s last caldera forming eruption.  Continue reading Moving Megatons: The Excavational Eruptions of Calderas

The Birth of an Island

Thousands of people mill around on the beautiful volcanic island of Santorini every day having little knowledge of the amazing geologic history that passes under their feet. The island is ever changing and is constantly forged then reforged by the liquified rocks churning beneath the sea. There are still those that know about the volcanism that has created the island you see today but fewer know of the true volcanic origins for this paradise.

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Field Trips Through Time: A Geographical History of Santorini

As I walk the streets of Fira, Santorini and swim through the waves of tourists I see that most of them look out towards the center of the caldera. To them this island has always looked this way. Many know that around 1613 BC there was a cataclysmic eruption that forms the present day caldera and was a leading factor to the end of the Minoan civilization. Although they understand this, they do not realize that three cataclysmic caldera forming eruptions preceded the Minoan eruption and that even in the thousands of years in between each eruption the geography was constantly changing and morphing through volcanism and erosion into new shapes. As our class hiked around Thera, I saw before my eyes the different parts of this complex past that make it the paradise that it is today.

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Food from Ash

Food has always been a source of happiness and comfort for me and it’s a main component of why I want to travel. Since arriving at the port of Athinos in Santorini I have had so much delicious food. I’ve eaten everything from street food gyros, to tomato basil seafood risotto, to traditional moussaka. After experiencing all the amazing food Santorini has to offer, I asked myself why the does the food here taste so much better than back home? Then I remembered I was standing on a volcano.

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