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Earth, Planets and Space
Fig. 1. | Earth, Planets and Space

Fig. 1.

From: Interplate fault slip along the Japan Trench before the occurrence of the 2011 off the Pacific coast of Tohoku Earthquake as inferred from GPS data

Fig. 1.

Location map of study area and time series of GPS data. (a) Study area with epicenters, mentioned in this study, indicated by red stars. White stars represent the epicenters of large (M≥6.8) earthquakes that have occurred since 1923, and earthquakes with M > 7.4 are marked with black stars. White diamonds represent the sites whose time series are shown in (b). Broken lines indicate the coseismic slip distribution, with a contour interval of 4 m of the 2011 Tohoku earthquake (Ozawa et al., 2011). (b) Transient time series of E-W component at selected stations whose location is shown in (a). Exponential functions are also indicated in brown, green, and blue lines, which correspond to the 2005 Miyagi, 2008 Fukushima, and 2010 Fukushima earthquakes, respectively, at the stations mentioned in the text. Vertical broken lines indicate the date of the earthquakes whose epicenters are shown in (a) as red stars.

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