Figure S9 :
S9CC and Jaccard similarity for two similar earthquakes. (A) Two similar normalized earthquake waveforms, from 1266.95 s (blue) and 1629 s (red) in the CCOB.EHN continuous **data** on 2011-01-08, have a high CC = 0.9808 (Eq. 1), overlapping almost perfectly. (B) Corresponding fingerprints of these waveforms also have high overlap, with a high Jaccard similarity of 0.7544 (Eq. 5). White: both fingerprints are 1; red: one fingerprint is 1 and the other is 0; black: both fingerprints are 0. Here the Jaccard similarity J(A, B) equals the number of white elements (where both fingerprints A and B are 1) divided by the number of white elements plus the number of red elements (where either A or B is 1, but not both).
