SM
Seismology

Seismology

In Lehmann’s Terms – the Story of the Singular Seismic-Wave Spotter

March 8, 2023
In Lehmann’s Terms – the Story of the Singular Seismic-Wave Spotter
Inge Lehmann in 1932 (National Library of Denmark) and her seismological discovery of the earth's inner core, from P' (Lehmann, 1936)

It’s International Women’s Day 2023, so the EGU Seismology Division would like to celebrate the life and work of singular seismic-wave spotter – Inge Lehmann (1888-1993), a Danish seismologist who discovered that the inner core was solid! Inge Lehmann grew up in a family of high aspirations, with several family members being politicians, scientists, and engineers. Educated in a p ...[Read More]

SENSOR: Fishing geophones from a helicopter in Greenland

February 13, 2023
SENSOR: Fishing geophones from a helicopter in Greenland
Photo of crevasse and ice surface of Sermeq Kujalleq taken from helicopter Photos: Ana Nap

“SENSOR” – stands for Seismological Experiments, Network Systems, Observations and Recovery In this blog series, we share news about recent or upcoming seismic experiments around the globe! And this time we’re checking in with Ana Nap, a PhD student from the University of Zurich, Switzerland, about her work on Greenland’s fastest glacier… Installing instruments on Greenland’s fas ...[Read More]

On the Frontline of the Mission for Marsquakes

January 16, 2023
On the Frontline of the Mission for Marsquakes
Image Credit: Géraldine Zenhäusern/ETH Zürich

This week we interview Géraldine Zenhäusern, a PhD student at ETH Zurich’s Department of Earth Sciences, about her experience of being on the frontline of spotting Marsquakes with NASA’s InSight mission…. What is the InSight mission? The NASA InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission is a geophysical observatory (see Fig. 1) which landed ...[Read More]

Seismic Swarms in the Azores

January 9, 2023
Seismic Swarms in the Azores

Will Sturgeon – Post-Doc at the Earth Sciences Department of University College London, UK – takes us on a journey to the Azores to deploy seismometers in response to the seismic swarm earlier in 2022… Protruding from the central Atlantic Ocean, about 1,400 km west of Lisbon, is an archipelago of nine volcanic islands, known as the Azores. Also described as “Europe’s Hawaii”, the ...[Read More]