diff --git a/application/locale/ja/LC_MESSAGES/messages.po b/application/locale/ja/LC_MESSAGES/messages.po
index d82a45150..436ca9752 100644
--- a/application/locale/ja/LC_MESSAGES/messages.po
+++ b/application/locale/ja/LC_MESSAGES/messages.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: translations@wavelog.org\n"
 "POT-Creation-Date: 2026-02-24 10:40+0000\n"
-"PO-Revision-Date: 2026-02-23 10:47+0000\n"
+"PO-Revision-Date: 2026-02-25 03:40+0000\n"
 "Last-Translator: \"S.NAKAO(JG3HLX)\" <hlx.nakao@gmail.com>\n"
 "Language-Team: Japanese <https://translate.wavelog.org/projects/wavelog/main-"
 "translation/ja/>\n"
@@ -10302,35 +10302,35 @@ msgstr "HAMqsl 提供のデータ。"
 
 #: application/views/dashboard/index.php:527
 msgid "K-index: Planetary geomagnetic activity (0-9)"
-msgstr ""
+msgstr "K指数：惑星の地磁気活動（0-9）"
 
 #: application/views/dashboard/index.php:528
 msgid "A-index: Daily geomagnetic activity index"
-msgstr ""
+msgstr "A指数: 日次地磁気活動指数"
 
 #: application/views/dashboard/index.php:529
 msgid "Solar Flux Index"
-msgstr ""
+msgstr "太陽フラックス指数"
 
 #: application/views/dashboard/index.php:530
 msgid "Solar Wind speed (km/s)"
-msgstr ""
+msgstr "太陽風速度（km/s）"
 
 #: application/views/dashboard/index.php:531
 msgid "Signal Noise ratio"
-msgstr ""
+msgstr "信号対雑音比"
 
 #: application/views/dashboard/index.php:532
 msgid "X-Ray solar flux level"
-msgstr ""
+msgstr "X線太陽フラックスレベル"
 
 #: application/views/dashboard/index.php:533
 msgid "Sunspot Number"
-msgstr ""
+msgstr "太陽黒点数"
 
 #: application/views/dashboard/index.php:534
 msgid "Aurora activity level (Kp borealis)"
-msgstr ""
+msgstr "オーロラ活動レベル（Kp borealis）"
 
 #: application/views/dayswithqso/index.php:3
 msgid "Number of QSOs for this day of the week"