日本語の説明は下にあります [How to play?] Arrow key or mouse to rotate the map 1,2 key to change mode Space key to turn on/off darkmode Slider to change number of earthquakes to display [Notes] The depth scale is different from the planar scale. The shallower the epicenter, the redder it becomes. Only Yūkan-earthquakes(JMA seismic intensity scale 1+ earthquakes) are displayed. <mode1> 7319Earthquakes, ≥M4.6, 1996-04-01-2025-09-08 <mode2> 5480Earthquakes, ≥M3.9, ≥50km, 1996-04-01-2025-09-17 ___________________________________ [使い方] 矢印キーかマウスを使用して地図を回転させます。 数字キーでモードを切り替えます。 スペースキーでダークモードにします。 スライダーで表示する地震の数を調整します。 [注釈] 深さの縮尺と平面上の縮尺は一致しません。 震源が浅い程赤く表示します。 有感地震のみ表示します。
Did you see the plate boundaries? [credit] Japan Meteorological Agency - Seismic intensity date base https://www.data.jma.go.jp/svd/eqdb/data/shindo/ Data from the above site has been modified and used Natural Earth - ne_50m_admin_0_countries https://www.naturalearthdata.com/ modified for this project [other] @Yukihisa2022 https://scratch.mit.edu/discuss/post/8063649/ [history] v1.1 2024/7/26 first ver. shared v1.1 7/29 Unshared for Update v2.1 7/29 added "mode" function v2.2.1 7/29 added mode 3 v2.3.1 7/29 removed mode 3 v2.4.1 7/29 new added mode 3 v2.4.2 7/29 Corrected version name v3.1.1 7/29 added darkmode v3.1.2 8/23 Darkmode some update v4.1.1 10/25 Changed the pen thickness v4.2.1 10/26 Changed the pen thickness v5.0.0 9/19 Changed method of rotating; Replaced data; Added slider v5.0.1 9/21 Changed pen thickness v5.1.0 9/23 Changed japan map