J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
22:57 JST 01 Jan 2015 Tomakomai Oki 30 km 4.4 42.6 N 141.8 E4 No tsunami alerts
03:42 JST 09 Jan 2015 Nemuro-chiho Chubu 120 km 5.4 43.5 N 145.1 E4 No tsunami alerts
07:20 JST 26 Jan 2015 Chiba-ken Hokutobu 40 km 4.9 35.9 N 140.6 E4 No tsunami alerts
00:42 JST 01 Feb 2015 Ishikawa-ken Noto-chiho 20 km 4.4 37.3 N 137.2 E4 No tsunami alerts
10:25 JST 06 Feb 2015 Tokushima-ken Nambu 10 km 5.0 33.7 N 134.4 E5 upper No tsunami alerts
08:06 JST 17 Feb 2015 Sanriku Oki 10 km 6.9 39.9 N 144.5 E4 Tsunami alert issued
08:06 JST 17 Feb 2015 Sanriku Oki 10 km 6.9 39.9 N 144.5 E4 Tsunami alert issued
13:46 JST 17 Feb 2015 Iwate-ken Oki 50 km 5.7 40.1 N 142.1 E5 upper No tsunami alerts
10:11 JST 26 Feb 2015 Miyagi-ken Oki 50 km 4.9 38.5 N 142.1 E4 No tsunami alerts
00:04 JST 04 Mar 2015 Gifu-ken Mino-chuseibu 40 km 4.9 35.4 N 136.8 E4 No tsunami alerts
01:06 JST 24 Mar 2015 Nagano-ken Hokubu very shallow 3.6 36.8 N 137.9 E4 No tsunami alerts
10:43 JST 20 Apr 2015 Yonagunijima Kinkai very shallow 6.8 23.9 N 122.5 E4 Tsunami alert issued
22:15 JST 23 Apr 2015 Aomori-ken Shimokita-chiho very shallow 3.9 41.3 N 141.2 E4 No tsunami alerts
06:13 JST 13 May 2015 Miyagi-ken Oki 50 km 6.6 38.9 N 142.1 E5 upper No tsunami alerts
12:30 JST 15 May 2015 Fukushima-ken Oki 50 km 5.1 37.1 N 141.2 E4 No tsunami alerts
22:28 JST 22 May 2015 Amami-oshima Kinkai 20 km 5.1 28.6 N 129.6 E5 lower No tsunami alerts
14:28 JST 25 May 2015 Saitama-ken Hokubu 50 km 5.6 36.1 N 139.6 E5 lower No tsunami alerts
14:28 JST 25 May 2015 Saitama-ken Hokubu 50 km 5.6 36.1 N 139.6 E5 lower Intensity correction
01:06 JST 30 May 2015 Ibaraki-ken Nambu 50 km 4.8 36.2 N 139.8 E4 No tsunami alerts
01:06 JST 30 May 2015 Ibaraki-ken Nambu 50 km 4.8 36.2 N 139.8 E4 Intensity correction
20:24 JST 30 May 2015 Ogasawara-shoto Seiho-oki 590 km 8.5 27.9 N 140.8 E5 upper No tsunami alerts
20:24 JST 30 May 2015 Ogasawara-shoto Seiho-oki 590 km 8.5 27.9 N 140.8 E5 upper Intensity correction
04:34 JST 04 Jun 2015 Kushiro-chiho Chunambu very shallow 5.0 43.5 N 144.1 E5 lower No tsunami alerts
15:01 JST 08 Jun 2015 Aomori-ken Toho-oki 70 km 5.5 41.5 N 142.0 E4 No tsunami alerts
05:44 JST 09 Jun 2015 Ibaraki-ken Nambu 50 km 4.7 36.2 N 140.0 E4 No tsunami alerts
05:44 JST 09 Jun 2015 Ibaraki-ken Nambu 50 km 4.7 36.2 N 140.0 E4 Intensity correction
00:35 JST 23 Jun 2015 Aomori-ken Toho-oki 70 km 4.4 41.5 N 142.1 E4 No tsunami alerts
21:19 JST 23 Jun 2015 Ogasawara-shoto Seiho-oki 480 km 6.9 27.7 N 140.3 E4 No tsunami alerts
01:15 JST 10 Jul 2015 Ibaraki-ken Nambu 50 km 4.4 36.1 N 139.9 E4 No tsunami alerts
03:33 JST 10 Jul 2015 Iwate-ken Engan-hokubu 90 km 5.8 40.4 N 141.6 E5 lower No tsunami alerts
03:33 JST 10 Jul 2015 Iwate-ken Engan-hokubu 90 km 5.8 40.4 N 141.6 E5 lower Intensity correction
02:52 JST 13 Jul 2015 Oita-ken Nambu 60 km 5.7 33.0 N 131.9 E5 upper No tsunami alerts
17:53 JST 24 Jul 2015 Ehime-ken Nan-yo 40 km 4.7 33.4 N 132.4 E4 No tsunami alerts
18:22 JST 06 Aug 2015 Ibaraki-ken Hokubu 60 km 5.2 36.5 N 140.6 E4 No tsunami alerts
18:22 JST 06 Aug 2015 Ibaraki-ken Hokubu 60 km 5.2 36.5 N 140.6 E4 Intensity correction
18:22 JST 06 Aug 2015 Ibaraki-ken Hokubu 60 km 5.2 36.5 N 140.6 E4 Intensity correction
05:13 JST 14 Aug 2015 Fukushima-ken Oki 40 km 5.0 37.2 N 141.5 E4 No tsunami alerts
13:43 JST 14 Aug 2015 Tokachi-chiho Chubu 80 km 5.1 42.8 N 143.2 E4 No tsunami alerts
07:51 JST 26 Aug 2015 Hyuga-nada 30 km 5.2 32.1 N 131.9 E4 No tsunami alerts
05:49 JST 12 Sep 2015 Tokyo-wan 70 km 5.3 35.5 N 139.8 E5 lower No tsunami alerts
05:49 JST 12 Sep 2015 Tokyo-wan 70 km 5.3 35.5 N 139.8 E5 lower Intensity correction
22:38 JST 12 Sep 2015 Urakawa Oki 50 km 5.4 41.8 N 142.7 E4 No tsunami alerts
04:10 JST 03 Oct 2015 Kagoshima-ken Satsuma-chiho 10 km 4.1 32.1 N 130.2 E4 No tsunami alerts
17:53 JST 17 Oct 2015 Tottori-ken Chubu 10 km 3.9 35.4 N 133.9 E4 No tsunami alerts
08:30 JST 18 Oct 2015 Tottori-ken Chubu 10 km 4.2 35.4 N 133.9 E4 No tsunami alerts
08:36 JST 18 Oct 2015 Tottori-ken Chubu 10 km 4.3 35.4 N 133.9 E4 No tsunami alerts
15:04 JST 21 Oct 2015 Fukushima-ken Oki 30 km 5.5 37.3 N 141.2 E4 No tsunami alerts
15:04 JST 21 Oct 2015 Fukushima-ken Oki 30 km 5.5 37.3 N 141.2 E4 Intensity correction
22:45 JST 07 Nov 2015 Ibaraki-ken Nambu 110 km 4.9 36.1 N 140.0 E4 No tsunami alerts
05:51 JST 14 Nov 2015 Satsuma-hanto Seiho-oki 10 km 7.0 30.9 N 128.7 E4 Tsunami alert issued
05:51 JST 14 Nov 2015 Satsuma-hanto Seiho-oki 10 km 7.0 30.9 N 128.7 E4 Tsunami alert issued
18:33 JST 19 Nov 2015 Fukushima-ken Oki 50 km 4.8 37.5 N 141.4 E4 No tsunami alerts
08:20 JST 22 Nov 2015 Ibaraki-ken Oki 50 km 4.7 36.5 N 140.7 E4 No tsunami alerts
11:51 JST 28 Nov 2015 Nemuro-hanto Nanto-oki 80 km 5.5 43.3 N 146.5 E4 No tsunami alerts
15:01 JST 14 Dec 2015 Tottori-ken Chubu 10 km 4.2 35.5 N 133.9 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
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

Information provided by the Japan Meteorological Agency.
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