GeoLog

Natural Hazards

Is it an earthquake, a nuclear test or a hurricane? How seismometers help us understand the world we live in

Is it an earthquake, a nuclear test or a hurricane? How seismometers help us understand the world we live in

Although traditionally used to study earthquakes, like today’s M 8.1 in Mexico,  seismometers have now become so sophisticated they are able to detect the slightest ground movements; whether they come from deep within the bowels of the planet or are triggered by events at the surface. But how, exactly, do earthquake scientists decipher the signals …[Read More]

New Dimensions for Natural Hazards in Asia: the first AOGS–EGU Joint Conference

New Dimensions for Natural Hazards in Asia: the first AOGS–EGU Joint Conference

Asia is one of the most natural disaster-prone regions on the globe. Overpopulation and limited resources mean that natural hazards hit local populations particularly hard. “It doesn’t matter which index or evaluation method you use, Asia will always unfortunately come out on top when it comes to fatalities and damage from natural hazard events,” explains Dr. Adam Switzer, a member …[Read More]

Imaggeo on Mondays: Sediments make the colour

Imaggeo on Mondays: Sediments make the colour

Earth is spectacularly beautiful, especially when seen from a bird’s eye view. This image, of a sweeping pattern made by a river in Iceland is testimony to it. The picture shows river Leirá which drains sediment-loaded glacial water from the Myrdalsjökull glacier in Iceland. Myrdalsjökull glacier covers Katla, one of Iceland’s most active and ice-covered …[Read More]

GeoSciences Column: Is smoke on your mind? Using social media to assess smoke exposure from wildfires

GeoSciences Column: Is smoke on your mind? Using social media to assess smoke exposure from wildfires

Wildfires have been raging across the globe this summer. Six U.S. States, including California and Nevada, are currently battling fierce flames spurred on by high temperatures and dry conditions. Up to 10,000 people have been evacuated in Canada, where wildfires have swept through British Columbia. Closer to home, 700 tourists were rescued by boat from …[Read More]

Imaggeo on Mondays: Salt shoreline of the Dead Sea

Imaggeo on Mondays: Salt shoreline of the Dead Sea

This beautiful aerial image (you’d be forgiven for thinking that it was a watercolour) of the Dead Sea was captured by a drone flying in 100m altitude over its eastern coastline. Climate change is seeing temperatures rise in the Middle East, and the increased demand for water in the region (for irrigation) mean the areas …[Read More]

Imaggeo on Mondays: harnessing Earth’s inner heat

Imaggeo on Mondays: harnessing Earth’s inner heat

Iceland, the land of ice and fire, is well known for its volcanicity. Most famously, it is home to Eyjafjallajökull: the volcano which caused wide spread mayhem across European airspace when it erupted in 2010. But not all the local volcanic activity is unwelcome. High temperature geothermal areas are a byproduct of the volcanic setting …[Read More]