Skip to main content
Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

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

Fig. 5

Distribution of blast templates. a Blue circles indicate blasts, and red crosses indicate possible earthquakes that were detected by cross-correlation but are not considered to be blasts. # is the template number. b Histogram of events with high cross-correlation with template #107; these were considered blast events in central Oita Prefecture and removed because the activity was concentrated during morning working hours. c Histogram of events with high cross-correlation with template #1598 in Aizu, Fukushima Prefecture; these events were not removed from the catalog because they did not vary with time of day and because a nearby earthquake swarm was detected

Back to article page