De petits sismomètres peu coûteux peuvent communiquer des données de haute qualité et en temps réel. Pendant le tremblement de terre d’août 2021, ils ont été mis à l’épreuve.
earthquakes
The Temi landslide – an ancient, valley-blocking failure in Sichuan Province, China
Xie et al. 2023 describe the ancient, 35 million cubic metre, valley-blocking Temi landslide in China.
Global Earthquake Analysis Seeks Elusive Foreshock Signal
Spotting foreshocks for what they are could help seismologists forecast large earthquakes.
On-Again, Off-Again Lake Cahuilla Likely Enhanced Earthquakes in Southern California
The disappearance of the ephemeral lake has made earthquakes along the San Andreas Fault even more unpredictable.
The Mysterious Case of Ireland’s Missing Earthquakes
The Emerald Isle has far fewer earthquakes than neighboring Britain. Now scientists think they know why.
A New Workflow to Image the 3D Structure of Active Faults
A new approach to illuminate 3D fault structures using earthquake hypocenters may improve our understanding of earthquake propagation and arrest across step overs.
Forecasting Earthquake-Induced Floods
Surface-rupturing earthquakes can abruptly reroute rivers when fault scarps function like dams. Researchers have now successfully modeled such an event that occurred in New Zealand.
Earth Is Noisy. Why Should Its Data Be Silent?
Combining visual and sonic representations of data can make science more accessible and help reveal subtle details. The recent decade-long eruption of Hawaii’s Kīlauea Volcano offers a prime example.
Are Low-Frequency Earthquakes Just Slow Slip?
Tests of seismic attenuation show fluid saturation and high pressure near a seismic source reduce high-frequency content, challenging the idea of slow slip as the cause of low-frequency earthquakes.
Rougher Faults May Generate More Earthquake Aftershocks
Lab experiments on pieces of granite reflect natural aftershock dynamics and highlight the role of rock roughness along a fault.