Sentence examples for arc area from inspiring English sources
ECr16 also passes along the Miyako Saddle and crosses ECr6 in the island arc area.
Stations 52406 and 51425 are located across the island arc area from the source region.
And the optimal installation locations were located at 66° 88° and −66°−−88° of the arc area.
Firstly, using the involute equation in polar form, an analytic solution of the arc area enveloped by the involute curve is derived.
The Japan Coast Guard has been collecting basic geological and geophysical data in and around the Ryukyu island arc area since 2008.
These features are normally ascribed to an extensional deformation that affected the back-arc area above the subducting Adria plate since the Early-Middle Miocene (∼16 Ma).
We therefore infer that the magnitude of a potential earthquake occurring in the Ryukyu fore-arc area could be as large as the 2004 Sumatra earthquake under the premise that the whole potential source area would rupture simultaneously.
Before the 2004 Sumatra earthquake, the thrust earthquakes with a trench-normal P-axis extended over the fore-arc area to the southeast of the 2004 mainshock source area (deep blue beach balls in Figure 2a).
As a result, if a Sumatra-like earthquake occurs in the south Ryukyu fore-arc area, this may also trigger a tsunami similar to that during the 2004 Sumatra earthquake and induce serious damage.
From the similarities in geodynamic contexts between the Sumatra and Ryukyu subduction zones, we suggest that a potential Sumatra-like earthquake may occur along the border of the high gravity anomaly zone located in the fore-arc area of the Ryukyu subduction zone and the present low seismicity area in its western part should correspond to the possible co-seismic rupture area.
