Since 15 January 2022, the islands of the Tonga archipelago and surrounding territories have been suffering the effects of what has turned out to be one of the biggest eruptions of this century. The eruption occurred on Hunga Tonga-Hunga Ha’apai, an island created by the emergence of a large submarine volcano. HTHH is located among the ~170 islands of the Kingdom of Tonga and about 65 km nor ...[Read More]
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GeoLog
The Top Five EGU Education Initiatives We Think You Should Know About
The EGU Education Committee has opened a call for new members to join. Positions on the committee are open to anyone with an interest in and passion for improving learning at the interface between geoscience and educators, so long as they are an EGU member. In particular, the Committee is keen to include the voices of Early Career Scientists (ECS). Details on the application process are detailed h ...[Read More]
Geodynamics
2022 ASPECT Users Workshop
On January 19th and 20th, ASPECT had it’s annual virtual user workshop. With more than 60 participants, the virtual workshop has grown quite a bit since it started in 2020. This two day world-wide virtual event was full of great developments and showing exiting new applications in which ASPECT is being used. I will give here a short summary of the topics which where presented and discussed, ...[Read More]
Tectonics and Structural Geology
TS Must-Read – Cowie and Scholz (1992) – Physical explanation for the displacement-length relationship of faults using a post-yield fracture mechanics model
The Must-Read paper by Cowie and Scholz (1992) uses theory from fracture mechanics to explain fault growth and fault displacement profiles. The article initially points out the weaknesses in previous work, specifically highlighting how the abrupt termination of displacement profiles at fault tips would imply an infinite stress in the surrounding material. The paper then introduces a physical model ...[Read More]
Stratigraphy, Sedimentology and Palaeontology
The Sedimentology of Palaeontology
A chance to reflect Over the last year, I have been lucky enough to spend more than two months in the field examining a variety of outcrops representing terrestrial, glacial and marine depositional settings. To protect Alberta’s fossil heritage, the law demands that all sites where excavation will be undertaken must be assessed for their paleontological potential. Should it prove likely that signi ...[Read More]
Natural Hazards
Who’s afraid of Natech?
Natural hazards that impact industrial sites and result in technological accidents, causing the release of hazardous substances, are referred to as Natech events. In the popular imagination, Natech accidents are triggered by major natural hazard events. However, experience tells us that low magnitude natural events, such as lightning or heavy rains, are sufficient to cause enormous adverse effects ...[Read More]
Cryospheric Sciences
Did you know… Arctic lightning strikes are on the rise?
When we think of lightning, it is often accompanied by warm summer nights, tropical storms and a sticky feeling when we try to sleep. However, lightning also happens in the cold Arctic, and is even increasing in frequency. But how and why? And why does that matter? What is lightning? Lightning is caused by a difference in electrical charge between the cloud and the air, nearby clouds, or the groun ...[Read More]
GeoLog
GeoPolicy: Don’t Look Up – could better science advice have saved the planet?
Note: Spoilers Ahead! If you haven’t already seen it, go and watch Don’t Look Up – and then come back to this blog to find out what the scientists in the film could have done to better connect and communicate with the policymakers involved! Don’t Look Up gives us a terrifying example of what could happen when policymakers ignore the science. The film tells the story of two astronomers, PhD candida ...[Read More]
Geodynamics
The Sassy Scientist – Whining Unleashed
We are all underpaid and underappreciated. That is almost the dictionary definition of academic jobs. We bounce from one barely acceptable contract to the next, hoping to finally land a tenure-track position that allows us to swim in money like Scrooge McDuck. But before that, science itself should be its own reward and sustenance. Sometimes though, we hear from a friend of a friend about a collea ...[Read More]
GeoLog
Feeling stressed lately? The EGU ECS Working Group ‘Work-Life-Balance’ can help!
The feeling of being ‘a little out of balance’ is probably something we all encounter at some point in our lives. Stress is on the rise, with the constant pressure to ‘do something special and meaningful.’ Coping with this situation can be challenging and there is no magic recipe that fits for all. The good news is we have uncovered a few ingredients you can choose from to ...[Read More]