We apply an empirical Green's function method to recordings of teleseismic body waves from the June 9, 1994 deep-focus Bolivia earthquake. The far-field source time functions reveal that rupture occurred on a sub-horizontal fault plane. The main rupture began some 25 km to the east of the hypocenter, consists of three large subevents, and covers a total area of about 60¿40 km2. The static stress drop is quite large, more than 150 MPa, and the obtained rupture velocity is less than 2 km/sec. While the total dimensions of the earthquake are large compared to estimates of the width of a metastable olivine wedge at this depth, the moment release is confined largely to a narrow band along an EW axis, and may be compatible with phase transitions within a thickened slab core. ¿ American Geophysical Union 1996