Fig. 4: RotD50 predictions on a validation event of magnitude 6.85. | Communications Earth & Environment

Fig. 4: RotD50 predictions on a validation event of magnitude 6.85.

From: A machine learning estimator trained on synthetic data for real-time earthquake ground-shaking predictions in Southern California

Fig. 4

The reference RotD50 map (first column), as well as RF (second column), DNN (third column), and ASK-14 (fourth column) predictions given in cm/s2 for a synthetic validation event: an MW = 6.85 earthquake located at 33.45°N, 117.73°W, and 6.1 km deep (pink cross). Rows show the increasing period from T = 2 s, 3 s, 5 s, and 10 s. The RMSE score metrics for each prediction are annotated in each subfigure. ASK-14 consistently underestimates RotD50, while the spatial distribution of RotD50 in MLESmap models reflects that of the reference maps.

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