Using the data of all tectonic earthquakes with M ≧ = 7.0, which occurred between 1900.01.01. and 1972.12.31., between 130° and 163°E and 0° and 12°S, maps for the distribution of tectonic flux and epicenters were constructed. These were compared with the tectonic map of the area investigated (Weber Deep, New Guinea, Bismarck Sea, New Ireland, New Britain, Solomon Sea, Bougainville Island, Solomon Islands). It was found that the so-called active centers of the tectonic flux are arranged either exactly on, or very near the plate boundaries established by other authors. The map of epicentral distribution shows a less clear correlation of this kind. The pattern of distribution of shallow ( h = 0–99 km) shocks is rather diffuse on New Guinea itself, namely, but less diffuse over oceanic areas where many of the epicenters are to be found near or just on the suggested boundaries of lithospheric plates. The intermediate and deep shocks ( h ≧ = 100 km ) form three, well-separated regions. The first is related to the Weber Deep, the second to the westernmost edge of the south Bismarck plate and that of the Solomon plate, respectively; finally the third one to the easternmost corner of the two Bismarck plates and, respectively, the northeastern edge of the Solomon plate. The data of altogether 152 shocks were applied and this number appeared to be small for the construction of Benioff zones. Due to the research carried out by other authors, we know, however, that Benioff zones do exist in some parts of the area investigated. The deepest shock in the magnitude-range of 7.0–8.6 originated at 430 km beneath the surface. The distribution of shocks down to this depth by and large corresponds to the pattern which is often experienced at and underneath typical island arcs, with an outstanding maximum between 0 and 99 km. This statement is valid for the number and summarized energy of the earthquakes alike. The distribution of volcanoes is very particular and strange as many of them are situated either exactly on or very near the plate boundaries. In general, that is in the case of less-complicated island arcs, such as — say — the Indonesian Arc, the volcanoes are usually at a distance of about 280–300 km or more from the axis of the oceanic trench which is the nearest plate boundary measured from them. The area investigated in this paper is really one of the most complicated regions of the world.