J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
00:38:00 JST 01 Apr 2026 Off the south coast of the Boso Peninsula 90 4.4 33.9 N 140.1 E1 No tsunami alerts
03:57:00 JST 01 Apr 2026 Shimane-East 10 2.6 35.3 N 133.2 E1 No tsunami alerts
10:06:00 JST 01 Apr 2026 Ibaraki-South 50 5.0 36.1 N 140.0 E5 lower
00:59:00 JST 02 Apr 2026 Kii Channel 10 3.0 34.2 N 135.1 E2 No tsunami alerts
01:28:00 JST 02 Apr 2026 Saitama-North 60 3.4 36.1 N 139.7 E2 No tsunami alerts
02:38:00 JST 02 Apr 2026 40 3.2 34.1 N 133.6 E1 No tsunami alerts
16:27:00 JST 02 Apr 2026 Tokachi-Central 70 3.2 42.7 N 143.4 E2 No tsunami alerts
23:22:00 JST 02 Apr 2026 Off the coast of Iwate 50 4.3 39.3 N 142.1 E2 No tsunami alerts
01:41:00 JST 03 Apr 2026 Hyogo-Southeast 20 3.1 34.9 N 135.0 E2 No tsunami alerts
11:33:00 JST 03 Apr 2026 Kumamoto-Amakusa/Ashikita 10 2.4 32.3 N 130.4 E1 No tsunami alerts
17:51:00 JST 03 Apr 2026 Off the coast of Iwate 30 4.2 39.4 N 142.6 E1 No tsunami alerts
18:53:00 JST 03 Apr 2026 Near the coast of Miyakojima 50 4.2 25.0 N 125.6 E1 No tsunami alerts
23:37:00 JST 03 Apr 2026 Gifu Mino Midwest 40 3.2 35.4 N 136.9 E2 No tsunami alerts
00:06:00 JST 04 Apr 2026 Northern Wakayama 0 2.4 34.3 N 135.1 E1 No tsunami alerts
00:53:00 JST 04 Apr 2026 Osaka Bay 20 3.1 34.5 N 135.0 E1 No tsunami alerts
03:07:00 JST 04 Apr 2026 Off the coast of Kushiro 40 3.3 42.9 N 145.4 E1 No tsunami alerts
Archive Earthquake Data
  JMA (final quake data) EEW (preliminary reports)
2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2012 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2013 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2014 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2015 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2016 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2017 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2018 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2019 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2020 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2021 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2022 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2023 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2024 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2025 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7
2026 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All 4 to 7

Information provided by the Japan Meteorological Agency.
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