Additional file 1 of Synchronization of small-scale seismic clusters reveals large-scale plate deformation
Creators: name: Karabulut, Hayrullah
name: Bouchon, Michel
name: Schmittbuhl, Jean
Publisher: name: figshare
Year: 2022
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Additional file 1: Text S1. Normalized cumulative distributions of the magnitude and 9 magnitude completeness of each seismic cluster. Text S2. Cumulative Seismicity. Text S3. Seismicity Rates. Text S4. Singular Value Decomposition. Figure S1. Normalized cumulative distributions of the magnitude of earthquakes 75 for each cluster using the same color coding as in Fig.2. Magnitude completeness 76 of the clusters for 4 different time windows a) 2003 – 2008 (Mc=2.9) b) 2003 – 77 2017 (Mc=2.7) c) 2004 – 2006 (Mc=2.9) d) 2007-2017 (Mc=2.7). Figure S2. Gaussian smoothing function. Figure S3. Processing steps for the seismicity time series. (a) Cumulative 88 number of earthquakes (blue) and daily seismic activity (red) for the Simav 89 cluster (b) after declustering. All plots are normalized by their maximum values. 90 The daily seismic activity is smoothed using the Gaussian function of Figure S2. Figure S4. Singular values of the matrix constructed from daily seismicity time series of the clusters. They are normalized by the first singular value. Figure S5-1. Top: Cumulative seismicity time series of 27 clusters. Bottom: Reconstructed daily seismicity rates using only the first singular value. Figure S5-2. Top: Cumulative seismicity time series of 27 clusters. Bottom: Reconstructed daily seismicity rates using only 3 largest singular values. Figure S6. Top : a) Cumulative seismicity time series of 27 clusters. Bottom: b) Reconstructed time series after removing largest 12 singular values. Figure S7. Comparison of the cumulative seismicity of 27 clusters and the seismicity rates from 2006 to 2017 using a) Kandilli Observatory and earthquake Research Institute (KOERI) ( https://koeri.boun.edu.tr/ ) b) Disaster and Emergency Management Authority of Turkey (AFAD) ( https://deprem.afad.gov.tr/ ) and c) International Seismological Center (ISC) ( http://www.isc.ac.uk/ ) catalogs. Figure S8. Top: The locations of the seismic stations of which the continuous recordings are displayed in the following figures. Middle: 24 hour recordings of NS components of 5 seismic stations (red) and filtered with 1-9Hz bandpass filter (blue). Notice the occurrence of several moderate seismic events at the selected stations in addition to smaller events. Bottom: 6 days long NS component recording of DALT station (red) and filtered with 1-9Hz bandpass filter (blue). Beneath is the spectrogram of the seismic trace. The traces are normalized by maximum values and saturated for small-magnitude events. The seismic activity is not confined to the passage of seismic waves due to Sumatra earthquake. Figure S9. Cumulative number of events of selected clusters in central and eastern Anatolia for the time period of 2004 Sumatra Mw9.2 earthquake (see Figure 1 for the locations of the clusters). Figure S10. Cumulative number of events of selected clusters in the western Anatolia for time period of Hellenic subduction earthquakes (see Figure 1 for the locations of the western clusters). Figure S11. The diagram shows cumulative seismicity of 27 clusters (a) and the seismicity rate color coded for all clusters as in Figure 2 but from 1998 to 2017 (b). The occurrence times of giant earthquakes worldwide and of large regional earthquakes are shown. The color scale is shown on the lower right corner. Figure S12. Cumulative number of earthquakes in Anatolia between 36.80N-41.00N latitudes and 25.5E-44.0E longitudes (includes all clusters in Figure 1) for varying lower magnitude cut-offs between 2.8 (‘ml28’ blue curve) and 5.8 (‘ml58’ red curve). The displayed time period is starting 4 years after the 1999 Izmit earthquake and ending with the occurrence of 2011 Van earthquake. The red curve (5.8 magnitude threshold) is showing a sharp increase during the 2004 episode and a plateau during the 2008 episode. On the contrary, the blue curve (2.8 magnitude threshold) exhibits a similar increase between both periods. Figure S13. Broadband N-S component recordings of 2004 Sumatra earthquake at seismic stations shown on top of the traces. The traces are normalized by maximum values (see the map in Figure A8 for station locations.). The period of large amplitude S wave exceeds 100sec. Figure S14. Evolution of the cumulative number of events of the clusters in the two easternmost clusters of Anatolia (see Figure 1 for the locations of the clusters).