Figure: Soviet PNEs (stars) recorded at Borovoye during 1967-1988. Event id in Table 5A is indicated for each PNE. IMS primary (double circle), auxiliary (single circle), IRIS/GSN (inverted triangle) and Kazakstan Broadband Seismographic Network stations are indicated (solid triangle). Large circles around BRV indicate 1000 and 2000 km distance ranges from the staton.