1994

The only magnitude 8.0 or greater earthquake occurred in the first half of 1994 outside the Test area. The Great Deep Bolivia earthquake has the following parameters: origin time — 1994/06/09 00:33 UTS, coordinates 13.84°S, 67.55°W, depth — 631 km, magnitudes — mb=7.0, MbBrk=7.4 and MwGS=8.2. Because of extremely large depth, the Ms magnitude of this event is not reported by NEIC. This is the largest deep earthquake ever recorded all over the world. The epicenter of the Great Deep Bolivia earthquake is just about 80 km away from the territory of M8 alarm in CI##156-159 (Table of CIs for M8.0+).