Geography Reference
In-Depth Information
GIS EEDB was adapted to Windows 8, and its supported applications were
translated to the standards of the Firefox versions and new versions of Global
Mapper and FireFox utilities were employed.
For the seismological base, we chose the Japan JMA catalog as the most
complete one to date. When making the choice, we compared several Japanese
catalogs: JUNEC (Japan University Network Earthquake Catalog, 1985/07/01-
1998/12/31), NIED (National Research Institute for Earth Science and Disaster
Prevention Earthquake Catalog, 1979/07/01 - 2003/06/30) and JMA (Japan
Meteorological Agency Earthquake Catalog, 1926/01/01 - 2013/05/31).
Figure 15. Work flow chart for seismicity research and the framework of the
EEDB system.
Seismicity Pattern Visualized by Means of Fukushima-EEDB
Simple visualization in a map (with sorting by magnitude) and selection
(by bolting small events) show some geologically active structures in the area
adjacent to the Fukushima Prefecture. First, they are seismic lineaments and
super-lineaments. The seismicity of the area was assumed to be a part of the
trans-regional Japan-Sea lineament [46] (black boundaries in Figure 16),
which extends from the Arctic Ocean to the Philippine Sea, including the
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