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

Fig. 1

From: Is the deformation rate of the Longmenshan fault zone really small? Insight from seismic data at the two-decade time scale

Fig. 1

Earthquakes with ML ≥ 2.5 in the Longmenshan, Xianshuihe, Anninghe, and Zemuhe fault zone and their vicinities for the period from 1977/01/01 to 2008/01/01, with active faults by dark gray lines. The region under study is displayed in the indexing figure to the upper right. In the figure, polygon A is the Xianshuihe fault zone, polygon B the Anninghe fault zone, polygon C the Zemuhe fault zone, and polygon D the Longmenshan fault zone. Gray and colored dots show the locations of events outside and inside the polygons, respectively. For comparison, the areas of the polygons are taken as the same. Frequency-magnitude distribution in these different fault zones during this period of time is displayed to the bottom right of the figure as an indication of the completeness of earthquake catalogues. Cutoff magnitude is marked in the figure as MC = 2.5. In all the figures Chinese ML is used as the unified magnitude.

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