EGU Blogs

Highlights

GeoLog

Top ten tourist beaches threatened by tsunamis

Top ten tourist beaches threatened by tsunamis

December 2004 saw one of the deadliest natural disasters in recorded history. 228,000 people were killed when an earthquake off the coast of the Indonesian island of Sumatra triggered tsunami waves up to 30 m high. The destruction was extreme as the waves hit 14 different countries around the Indian Ocean. Economic losses totalled over 10 billion US dollars. The tourism industry in particular suff ...[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

Fire, Fog, Frost, Famine – French Revolution? The Lakagígar eruption in Iceland, 1783-1784 [Part 2]

Fire, Fog, Frost, Famine – French Revolution? The Lakagígar eruption in Iceland, 1783-1784 [Part 2]

PART II: Were the Haze Hardships caused by Men? Famine Before the Lakagígar eruption, the population of Iceland was 48810 people; four years later, it was down to 38518. Disregarding about 1500 deaths which were caused by a smallpox epidemic, the eruption may still have killed about 1/6 of the population [5]. These deaths were not directly caused by the lava or by toxic gases. The main cause was h ...[Read More]

NH
Natural Hazards

Natural Groundwater Quality: an underestimated and yet dangerous hazard.

Natural Groundwater Quality: an underestimated and yet dangerous hazard.

Today I have the pleasure to interview Dr. Evangelos Tziritis, a brilliant scientist and a friend. He will talk to us about Natural groundwater quality hazard and its implications. This blog aim is to discuss Natural Hazards. Therefore, today we will focus on the natural component of water quality, disregarding anthropogenic sources.  Evangelos is a Research Scientist at the Soil and Water Resourc ...[Read More]

GeoLog

Imaggeo on Mondays: A volcanic point of view

Imaggeo on Mondays: A volcanic point of view

It’s not every day that you can peer into a volcano, much less gaze out at the sky from the inside of one. The Algar do Carvão, or “the Cavern of Coal,” is one of the few places on Earth where you can explore the underground reaches of a volcanic site. The volcanic pit is found on the island of Terceira, part of the Azores archipelago. This collection of islands is an autonomous region of Portugal ...[Read More]

CR
Cryospheric Sciences

Image of the Week — Biscuits in the Permafrost

Image of the Week — Biscuits in the Permafrost

In Svalbard, the snow melts to reveal a mysterious honeycomb network of irregular shapes (fig. 1). These shapes may look as though they have been created by a rogue baker with an unusual set of biscuit cutters, but they are in fact distinctive permafrost landforms known as ice-wedge polygons, and they play an important role in the global climate. Ice-wedge polygons: Nature’s biscuit-cutter In wint ...[Read More]

GD
Geodynamics

EGU 2018: Experience of a first time attendee

EGU 2018: Experience of a first time attendee

Your first time at the General Assembly can be a daunting experience. It’s not easy to navigate the scientific programme and let’s not even mention navigating the building! It becomes even more difficult if you do not know many people in your scientific community yet. Luckily, one of the easiest things to do at EGU is meeting new people. Jyotirmoy Paul, PhD student at the Indian Instit ...[Read More]

ST
Solar-Terrestrial Sciences

Prof. Ilya Usoskin – A discussion with an inquiry mind

Prof. Ilya Usoskin – A discussion with an inquiry mind

In the May issue of the Life of a Scientist we have the pleasure to talk to Prof. Ilya Usoskin from the Univeristy of Oulu, Finland. Among numerous things, he is the head of the Oulu Cosmic Ray station and receipent of this year’s Julius Bartels EGU Medal; a decision that was based:  “on his contributions to the understanding of the heliosphere, long-term changes in the solar activity ...[Read More]

GeoLog

Plate Tectonics and Ocean Drilling – Fifty Years On

Plate Tectonics and Ocean Drilling – Fifty Years On

What does it take to get a scientific theory accepted? Hard facts? A strong personality? Grit and determination? For many Earth Scientists today it can be hard to imagine the academic landscape before the advent of plate tectonics. But it was only fifty years ago that the theory really became cemented as scientific consensus. And the clinching evidence was found in the oceans. Alfred Wegener had p ...[Read More]

GeoLog

Imaggeo on Mondays: River in a charoite schist

Imaggeo on Mondays: River in a charoite schist

Polarized light photomicrograph of a thin section of a charoite-bearing schist. Charoite is a rare silicate found only at one location in Yakutia, Russia. For its beautiful and uncommon purple color it is used as a semi-precious stone in jewelry. Under the microscope charoite-bearing rocks give an overall feeling of movement, with charoite forming fibrous mats that swirl and fold as a result of de ...[Read More]

GeoLog

Geosciences Column: Extreme snowfall potentially worsened Nepal’s 2015 earthquake-triggered avalanche

Geosciences Column: Extreme snowfall potentially worsened Nepal’s 2015 earthquake-triggered avalanche

Three years ago, an earthquake-induced avalanche and rockfalls buried an entire Nepalese village in ice, stone, and snow. Researchers now think the region’s heavy snowfall from the preceding winter may have intensified the avalanche’s disastrous effect. The Langtang village, just 70 kilometres from Nepal’s capital Kathmandu, is nestled within a valley under the shadow of the Himalayas. The town wa ...[Read More]