Fig. 2From: Characteristics of the foreshock occurrence for Mj3.0 to 7.2 shallow onshore earthquakes in JapanThe JMA earthquake catalogue (blue) and declustered earthquake catalogue (red). We use aftershock time–space identification windows from Gardner and Knopoff (1974). Earthquake swarms and possible triggered earthquakes following the 2011 Tohoku-oki earthquake are also removed. The declustered earthquake catalogue shows similar yearly earthquake occurrence levelBack to article page