Figure 8.27 Seismic gaps. Map of the northern boundary of the Indian plate, where it is moving toward Asia. Shown in red are the rupture zones for the three large earthquakes that have occurred along this plate boundary since 2000. Large earthquakes that occurred between 1905 and 1999 are shown in black and seismic gaps are shown in white. Seismic gaps are “ quiet zones" thought to be inactive zones that are storing elastic strain that will eventually produce major earthquakes.