A physics-based method estimates the duration of earthquakes’ coseismic phase and can help improve the precision of coseismic slip models and magnitude estimates.
earthquakes
Sobreviviendo en la periferia de una ciudad de terremotos
La Ciudad de México es una de las áreas urbanas más propensas a desastres del mundo. Después de un terremoto, las comunidades marginadas que viven en la periferia de la ciudad están expuestas a más peligros que el simple derrumbe de edificios.
Stratospheric Balloons Listen In on Ground Activity
Solar-powered hot-air balloons, floating 2.5 times as high as Mount Everest, detected a buried explosion more clearly than ground-based sensors did.
Summer Could Be Earthquake Season on Mars
InSight data hint that shifting carbon dioxide ice loads, illumination changes, or solar tides could drive an uptick in marsquakes during northern summer—a “marsquake season.”
Support for a “Jelly Sandwich” Model of the Tibetan Plateau
Computer modeling constrained by positional data collected in the aftermath of the 2008 Wenchuan earthquake indicates the lower crust is less viscous than the upper mantle below it.
Understanding Tremors Through Tree Rings
Researchers look to carbon isotopes and cell-level wood anatomy to understand how seismic-induced changes in water availability affect tree growth.
Surviving on the Periphery of a City of Earthquakes
Mexico City is one of the most disaster-prone urban areas in the world. Following an earthquake, marginalized communities living on the city’s periphery are exposed to more dangers than just collapsing buildings.
Drone Rules Make Tracking Down Faults a Difficult Feat
Regulations differ from country to country, but on one point, they’re relatively uniform: Drones must remain within their operators’ line of sight. How do earthquake scientists collect drone data while working within the rules?
Subduction Zone Earthquakes: Fast and Slow, Weak and Strong
What causes slow earthquakes in subduction zones? New insights from numerical models suggest that a mixture of strong and weak rocks might be the cause.
New Inversion Method Improves Earthquake Source Imaging
A new method uses Bayesian inference to jointly invert for non-planar fault geometry and spatially variable slip (with associated uncertainties) in earthquake source modeling, based on geodetic data.