Geoscience Reference
In-Depth Information
Tonga-new Hebrides region and North Islands of New Zealand
We receive satellite information for the seismic manifestations in the region in a rela-
tively large time period August 17-September 17, 1981 when the major earthquake
EQ
41
with a magnitude Mw 7.9 (see Table 1) occurred along the Tonga trench on Tuesday,
September 1, 1981 at 09:29:31.
Figure 1a.
Satellite orbits 184, 198, 305, 347, 348, 403, and positions of the earthquake epicenters
for periods of seismic activity in August 13-31, 1981 and August 28-September 9, 1981.
Figure 1b.
Disturbances in
Ez
component of the quasi-static field, orbit 347.
