Earthquake probabilities methods encompass quantitative frameworks used to estimate the likelihood of seismic events occurring in specified space-time-magnitude windows. These approaches include time-independent probabilistic seismic hazard analysis (PSHA), which treats earthquakes as a Poisson process using long-term occurrence rates, and time-dependent models, such as renewal and stress-transfer-based formulations, which incorporate recurrence intervals, Coulomb stress changes, and fault loading rates. Methods integrate earthquake catalogs, fault slip rates, ground-motion prediction equations, and epistemic/aleatory uncertainty through logic trees or Bayesian inference, producing probabilistic forecasts used for hazard maps, risk assessment, and performance-based seismic design.
Researchers have developed a laboratory earthquake model that connects the microscopic real contact area between fault surfaces to the possibility of earthquake occurrences. Published in the Proceedings of the National Academy ...
Earth Sciences
Jun 6, 2025
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Unfounded online rumors warning that a huge earthquake will soon strike Japan are taking a toll on travel firms and airlines who report less demand from worried Hong Kongers.
Environment
May 15, 2025
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75
Members of socially and economically marginalized groups in Montreal and Ottawa-Gatineau are at disproportionate risk in earthquakes, a new study has found.
Environment
May 14, 2025
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Identifying long-term seismic activity patterns is crucial for understanding how fault systems evolve, as well as for estimating the probability of future earthquakes. But seismic records date back only hundreds of years—1,000 ...
Earth Sciences
Apr 17, 2025
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25
An international study published in Communications Earth & Environment has advanced earthquake simulations to better anticipate the rupture process of large earthquakes.
Earth Sciences
Apr 15, 2025
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48
Experts say that the devastating earthquake in Myanmar on Friday was likely the strongest to hit the country in decades, with disaster modeling suggesting thousands could be dead.
Earth Sciences
Mar 29, 2025
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