Repository: Freie Universität Berlin, Math Department

Machine Learning Can Predict the Timing and Size of Analog Earthquakes

Corbi, F. and Sandri, L. and Bedford, J. and Funiciello, F. and Brizzi, S. and Rosenau, M. and Lallemand, S. (2019) Machine Learning Can Predict the Timing and Size of Analog Earthquakes. Geophysical Research Letters, 46 (3). pp. 1303-1311. ISSN 0094-8276; ESSN: 1944-8007

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Official URL: https://dx.doi.org/10.1029/2018GL081251

Abstract

Despite the growing spatiotemporal density of geophysical observations at subduction zones, predicting the timing and size of future earthquakes remains a challenge. Here we simulate multiple seismic cycles in a laboratory‐scale subduction zone. The model creates both partial and full margin ruptures, simulating magnitude M_w 6.2–8.3 earthquakes with a coefficient of variation in recurrence intervals of 0.5, similar to real subduction zones. We show that the common procedure of estimating the next earthquake size from slip‐deficit is unreliable. On the contrary, machine learning predicts well the timing and size of laboratory earthquakes by reconstructing and properly interpreting the spatiotemporally complex loading history of the system. These results promise substantial progress in real earthquake forecasting, as they suggest that the complex motion recorded by geodesists at subduction zones might be diagnostic of earthquake imminence.

Item Type:Article
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
ID Code:2389
Deposited By: Silvia Hoemke
Deposited On:20 Jan 2020 14:44
Last Modified:20 Jan 2020 14:44

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