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Earth, Planets and Space
Fig. 8 | Earth, Planets and Space

Fig. 8

From: Detection of hidden earthquakes after the 2011 Tohoku earthquake by automatic hypocenter determination combined with machine learning

Fig. 8

Changes in earthquake detectability along the Japan Trench. a Hypocentral distribution in our merged catalog; symbol colors indicate depth. b Frequency-magnitude distribution for each region. Red and black symbols indicate the number of events in the JMA unified catalog and our merged catalog, respectively. Mc is based on MAXC + 0.2 (Woessner and Wiemer 2005). Region 1 does not include the epicenters in region 4

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