Fig. 1: Geological information and distribution of seismic stations at Yilan Crater.
From: Subsurface structure and impact process of Yilan Crater, northeastern China
a Topography and station distribution (white triangles) at Yilan Crater. A drilling well at station YL0000 is marked with a red star. Profile YL07 is outlined for the later discussion. Blue circle indicates the rim of Yilan Crater. b Geological sketch map of the crater and surrounding areas (modified from Chen et al.3). c Location of the two documented craters in China (blue circles) (Data from Earth Impact Database https://impact.uwo.ca/map/).
