J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
09:22:00 JST 14 Mar 2021 Gifu-Hida 10 4.4 32.7 N 130.7 E4 No tsunami alerts
00:25:00 JST 15 Mar 2021 Northern Wakayama 10 4.6 34.0 N 135.2 E5 lower No tsunami alerts
04:56:00 JST 16 Mar 2021 Ibaraki-South 50 4.8 36.2 N 139.8 E4 No tsunami alerts
17:28:00 JST 17 Mar 2021 Off the coast of Fukushima 60 5.3 37.7 N 141.7 E4 No tsunami alerts
18:09:00 JST 20 Mar 2021 Off the coast of Miyagi 60 7.2 38.4 N 141.7 E5 upper Tsunami alert issued
07:07:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 5.2 29.3 N 129.5 E4 No tsunami alerts
16:36:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 5.0 29.3 N 129.2 E4 No tsunami alerts
05:40:00 JST 11 Apr 2021 Near the coast of Tokara Islands 20 4.5 29.3 N 129.4 E4 No tsunami alerts
21:00:00 JST 11 Apr 2021 Near the coast of Tokara Islands 20 4.4 29.3 N 129.3 E4 No tsunami alerts
23:01:00 JST 12 Apr 2021 Near the coast of Tokara Islands 20 5.2 29.3 N 129.2 E4 No tsunami alerts
05:14:00 JST 18 Apr 2021 Hiroshima-North 10 3.9 35.0 N 132.9 E4 No tsunami alerts
09:29:00 JST 18 Apr 2021 Off the coast of Miyagi 50 5.8 38.3 N 141.9 E4 No tsunami alerts
07:45:00 JST 21 Apr 2021 Near the coast of Tokara Islands 20 3.8 29.4 N 129.4 E4 No tsunami alerts
10:27:00 JST 01 May 2021 Off the coast of Miyagi 60 6.6 38.1 N 141.8 E5 upper
09:16:00 JST 06 May 2021 10 4.0 32.7 N 130.7 E4 No tsunami alerts
08:58:00 JST 14 May 2021 Off the coast of Fukushima 40 6.0 37.7 N 141.8 E4 No tsunami alerts
20:46:00 JST 14 May 2021 Hidaka-Central 20 4.6 42.5 N 142.6 E4 No tsunami alerts
16:59:00 JST 08 Jun 2021 10 3.8 32.7 N 130.7 E4 No tsunami alerts
07:39:00 JST 19 Jun 2021 Ehime-Nanyo 40 4.7 33.5 N 132.5 E4 No tsunami alerts
09:16:00 JST 11 Jul 2021 Ishakawa Noto 10 4.0 37.5 N 137.3 E4 No tsunami alerts
13:19:00 JST 16 Jul 2021 Off the coast of Hachijojima 10 5.5 33.2 N 139.4 E4 No tsunami alerts
20:50:00 JST 17 Jul 2021 Iyonada 80 5.1 33.6 N 131.9 E4 No tsunami alerts
11:16:00 JST 26 Jul 2021 Off the east coast of Aomori 70 5.1 41.4 N 142.1 E4 No tsunami alerts
05:19:00 JST 27 Jul 2021 Off the coast of Fukushima 80 4.6 37.3 N 141.4 E4 No tsunami alerts
09:37:00 JST 02 Aug 2021 Shimane-East 10 4.3 35.1 N 133.1 E4 No tsunami alerts
05:03:00 JST 16 Aug 2021 Shiga-North 10 4.6 35.5 N 136.3 E4 No tsunami alerts
01:31:00 JST 18 Aug 2021 Shimane-East 10 4.2 35.1 N 133.0 E4 No tsunami alerts
11:24:00 JST 22 Aug 2021 Off the coast of Fukushima 60 5.2 37.6 N 141.7 E4 No tsunami alerts
18:42:00 JST 16 Sep 2021 Ishakawa Noto 10 5.2 37.5 N 137.3 E5 lower
17:18:00 JST 19 Sep 2021 Gifu-Hida 10 5.0 36.3 N 137.6 E4 No tsunami alerts
02:46:00 JST 06 Oct 2021 Off the coast of Iwate 50 6.0 40.0 N 142.4 E5 upper
17:12:00 JST 06 Oct 2021 Off the east coast of Osumi Peninsula 40 5.5 31.3 N 131.5 E4
22:41:00 JST 07 Oct 2021 Chiba-Northwestern 80 6.1 35.6 N 140.1 E5 upper
07:57:00 JST 15 Oct 2021 Northern Wakayama 10 3.6 34.0 N 135.2 E4 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