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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Testing the seismic quiescence hypothesis through retrospective trials of alarm-based earthquake prediction in the Kurile–Japan subduction zone

Fig. 2Fig. 2

An example alarm map. The spatiotemporal map is made using a forecast model (1–12 in Table 2) and is shown in yearly snapshots. Areas in red, gray, and white indicate alarm-on, alarm-off, and alarm-undecidable areas, respectively. The year for the forecast is shown at the top-right corner of each panel. The alarm status shown in each panel is decided at T2 = 0:00 am, January 1 of the year, using the seismicity before. Focal mechanisms, numbered 1–8, represent the target-class (7.5 ≤ Mw < 8.5) earthquakes that occurred in the year and correspond to EQ#1–8 in Table 1. Predicted earthquakes are shown in black, whereas missed earthquakes are shown in green. Thin lines in the ocean indicate plate boundaries (Bird 2003)

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