ðiːz tɹaɪˈæŋɡjʊlɚ fˈæsɪts pɹəvˈaɪd ˈɛvɪdəns fɔːɹ ɹˈiːsənt fˈɔlt mˈuːvmənt ænd ɑːɹ jˈuːzd ɪn sˌaɪzmoʊtktˈɑːnɪk ɐnˈæləsˌɪs.
These triangular facets provide evidence for recent fault movement and are used in seismotectonic analysis.