79 citations · 331 across the 10 of their papers we have counts for
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Question-driven ensembles of flexible ETAS models
Leila Mizrahi, Shyam Nandan, William Savran +2
The development of new earthquake forecasting models is often motivated by one of the following complementary goals: to gain new insights into the governing physics and to produce…
Triggering of large earthquakes is driven by their twins
Shyam Nandan, Guy Ouillon, Didier Sornette
Fundamentally related to the UV divergence problem in Physics, conventional wisdom in seismology is that the smallest earthquakes, which are numerous and often go undetected, domin…
Embracing Data Incompleteness for Better Earthquake Forecasting
Leila Mizrahi, Shyam Nandan, Stefan Wiemer
We propose two methods to calibrate the parameters of the epidemic-type aftershock sequence (ETAS) model based on expectation maximization (EM) while accounting for temporal variat…
The Effect of Declustering on the Size Distribution of Mainshocks
Leila Mizrahi, Shyam Nandan, Stefan Wiemer
Declustering aims to divide earthquake catalogs into independent events (mainshocks), and dependent (clustered) events, and is an integral component of many seismicity studies, inc…
Is seismicity operating at a critical point?
Shyam Nandan, Sumit Kumar Ram, Guy Ouillon +1
Seismicity and faulting within the Earth crust are characterized by many scaling laws that are usually interpreted as qualifying the existence of underlying physical mechanisms ass…
Forecasting the full distribution of earthquake numbers is fair, robust and better
Shyam Nandan, Guy Ouillon, Didier Sornette +1
Forecasting the full distribution of the number of earthquakes is revealed to be inherently superior to forecasting their mean. Forecasting the full distribution of earthquake numb…
Forecasting the rates of future aftershocks of all generations is essential to develop better earthquake forecast models
Shyam Nandan, Guy Ouillon, Didier Sornette +1
Currently, one of the best performing and most popular earthquake forecasting models rely on the working hypothesis that: "locations of past background earthquakes reveal the proba…
Magnitude Of Earthquakes Controls The Size Distribution Of Their Triggered Events
Shyam Nandan, Guy Ouillon, Didier Sornette
The driving concept behind one of the most successful statistical forecasting models, the ETAS model, has been that the seismicity is driven by spontaneously occurring background e…
Objective Estimation of Spatially Variable Parameters of Epidemic Type Aftershock Sequence Model: Application to California
Shyam Nandan, Guy Ouillon, Stefan Wiemer +1
The ETAS model is widely employed to model the spatio-temporal distribution of earthquakes, generally using spatially invariant parameters. We propose an efficient method for the e…
Systematic Assessment of the Static Stress-Triggering Hypothesis using Inter-earthquake Time Statistics
Shyam Nandan, Guy Ouillon, Jochen Woessner +2
A likely source of earthquake clustering is static stress transfer between individual events. Previous attempts to quantify the role of static stress for earthquake triggering gene…