Precursor-Like Anomalies prior to the 2008 Wenchuan Earthquake: A Critical-but-Constructive Review

Figure 1

Distribution of major-to-great earthquakes around the Bayan Har block since 1997, with the 2008 Wenchuan earthquake located to the east, as shown by the text and arrows in red. To the top right is the indexing figure showing the position of the map. In the figure, orange lines show the earthquake ruptures, and blue arrows show the focal mechanism types of the earthquakes. Gray dots show the epicenters of historical major to great earthquakes. Gray solid lines indicate the boundaries of the tectonic blocks (according to [19]), with the Bayan Har block highlighted in the figure.