J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
06:44 JST 01 Apr 2015 Ibaraki-ken Nambu 70 km 2.9 36.2 N 140.1 E1 No tsunami alerts
10:08 JST 01 Apr 2015 Ibaraki-ken Nambu 60 km 3.1 36.2 N 139.8 E1 No tsunami alerts
22:45 JST 01 Apr 2015 Osaka-fu Nambu very shallow 2.5 34.3 N 135.2 E1 No tsunami alerts
07:11 JST 02 Apr 2015 Niigata-ken Joetsu-chiho 20 km 2.7 37.0 N 138.4 E2 No tsunami alerts
17:08 JST 02 Apr 2015 Ibaraki-ken Hokubu 60 km 3.2 36.3 N 140.4 E1 No tsunami alerts
04:04 JST 03 Apr 2015 Miyagi-ken Oki 50 km 4.7 38.6 N 142.0 E3 No tsunami alerts
15:32 JST 04 Apr 2015 Hidaka-chiho Seibu 20 km 3.1 42.5 N 142.2 E2 No tsunami alerts
23:59 JST 04 Apr 2015 Iwate-ken Oki 30 km 3.8 40.2 N 142.4 E1 No tsunami alerts
08:37 JST 05 Apr 2015 Ibaraki-ken Oki 40 km 3.5 36.4 N 141.0 E1 No tsunami alerts
12:46 JST 05 Apr 2015 Fukushima-ken Hamadori 100 km 3.8 37.1 N 140.9 E2 No tsunami alerts
22:34 JST 05 Apr 2015 Nagano-ken Nambu 10 km 2.6 35.9 N 138.1 E1 No tsunami alerts
12:29 JST 06 Apr 2015 Urakawa Oki 50 km 3.6 41.9 N 143.1 E1 No tsunami alerts
13:58 JST 06 Apr 2015 Kushiro Oki 50 km 4.3 43.0 N 145.4 E3 No tsunami alerts
14:36 JST 06 Apr 2015 Nagano-ken Hokubu 10 km 1.7 36.6 N 137.9 E1 No tsunami alerts
20:37 JST 06 Apr 2015 Yonagunijima Kinkai 80 km 4.4 24.5 N 122.7 E1 No tsunami alerts
00:48 JST 07 Apr 2015 Iwate-ken Engan-hokubu 60 km 3.7 39.8 N 141.8 E1 No tsunami alerts
01:51 JST 07 Apr 2015 Nagano-ken Nambu 10 km 2.4 35.9 N 137.6 E1 No tsunami alerts
20:33 JST 07 Apr 2015 Chiba-ken Toho-oki 30 km 3.7 35.4 N 140.4 E3 No tsunami alerts
08:51 JST 08 Apr 2015 Ehime-ken Nan-yo 50 km 4.0 33.6 N 132.5 E3 No tsunami alerts
14:54 JST 08 Apr 2015 Kyoto-fu Oki 10 km 2.7 35.7 N 135.0 E1 No tsunami alerts
18:10 JST 08 Apr 2015 Iwate-ken Oki 50 km 3.7 39.1 N 142.1 E1 No tsunami alerts
23:04 JST 08 Apr 2015 Hidaka-chiho Tobu 40 km 3.5 42.2 N 142.7 E1 No tsunami alerts
04:03 JST 09 Apr 2015 Osaka-fu Hokubu 10 km 2.6 35.0 N 135.4 E1 No tsunami alerts
09:16 JST 09 Apr 2015 Nagano-ken Hokubu 10 km 2.5 36.7 N 137.9 E1 No tsunami alerts
18:30 JST 09 Apr 2015 Aomori-ken Toho-oki 70 km 3.7 41.5 N 142.1 E1 No tsunami alerts
22:45 JST 09 Apr 2015 Fukushima-ken Oki 30 km 3.2 37.3 N 141.2 E1 No tsunami alerts
23:52 JST 09 Apr 2015 Iwate-ken Oki 50 km 3.6 40.4 N 142.3 E1 No tsunami alerts
07:36 JST 10 Apr 2015 Ibaraki-ken Nambu 50 km 3.1 36.1 N 139.9 E1 No tsunami alerts
18:04 JST 10 Apr 2015 Iwate-ken Oki 20 km 3.7 40.0 N 142.4 E1 No tsunami alerts
23:35 JST 10 Apr 2015 Chichijima Kinkai very shallow 4.1 27.3 N 142.7 E1 No tsunami alerts
00:10 JST 11 Apr 2015 Iwate-ken Oki 30 km 3.6 39.0 N 142.1 E1 No tsunami alerts
02:19 JST 11 Apr 2015 Fukushima-ken Oki 50 km 4.0 36.9 N 141.5 E1 No tsunami alerts
16:45 JST 11 Apr 2015 Aomori-ken Toho-oki 20 km 4.2 41.0 N 142.8 E1 No tsunami alerts
04:56 JST 12 Apr 2015 Amakusa-nada 10 km 4.0 32.3 N 129.8 E2 No tsunami alerts
06:43 JST 12 Apr 2015 Iwate-ken Oki 40 km 3.5 40.4 N 142.3 E1 No tsunami alerts
13:33 JST 12 Apr 2015 Miyagi-ken Oki 50 km 4.2 38.3 N 141.8 E2 No tsunami alerts
14:25 JST 12 Apr 2015 Fukushima-ken Oki 50 km 3.9 36.9 N 141.1 E2 No tsunami alerts
15:25 JST 12 Apr 2015 Gumma-ken Nambu 140 km 4.2 36.4 N 138.9 E2 No tsunami alerts
19:28 JST 12 Apr 2015 Chiba-ken Toho-oki 40 km 4.3 35.6 N 141.2 E1 No tsunami alerts
02:19 JST 13 Apr 2015 Nagano-ken Chubu very shallow 2.5 36.1 N 137.6 E1 No tsunami alerts
04:25 JST 13 Apr 2015 Fukushima-ken Oki 10 km 4.9 37.2 N 143.6 E1 No tsunami alerts
07:17 JST 13 Apr 2015 Wakayama-ken Hokubu 10 km 3.2 34.0 N 135.3 E3 No tsunami alerts
07:21 JST 13 Apr 2015 Osaka-fu Hokubu 10 km 3.0 35.0 N 135.4 E2 No tsunami alerts
17:24 JST 13 Apr 2015 Iwate-ken Oki 40 km 4.1 40.2 N 142.3 E2 No tsunami alerts
05:00 JST 14 Apr 2015 Ibaraki-ken Nambu 50 km 2.9 36.1 N 139.9 E1 No tsunami alerts
15:57 JST 14 Apr 2015 Yamanashi-ken Chu-seibu 20 km 2.5 35.7 N 138.2 E1 No tsunami alerts
16:01 JST 14 Apr 2015 Fukushima-ken Oki 20 km 4.1 37.1 N 141.3 E1 No tsunami alerts
21:46 JST 14 Apr 2015 Fukushima-ken Nakadori 10 km 2.7 37.0 N 140.3 E1 No tsunami alerts
22:50 JST 14 Apr 2015 Aomori-ken Toho-oki 20 km 3.7 40.6 N 142.7 E1 No tsunami alerts
11:17 JST 15 Apr 2015 Miyagi-ken Hokubu 60 km 3.3 38.9 N 141.6 E1 No tsunami alerts
11:19 JST 15 Apr 2015 Tochigi-ken Hokubu very shallow 2.5 36.9 N 139.4 E1 No tsunami alerts
01:58 JST 16 Apr 2015 Miyagi-ken Oki 50 km 4.0 38.4 N 141.9 E2 No tsunami alerts
02:10 JST 16 Apr 2015 Miyagi-ken Oki 40 km 4.1 38.8 N 142.1 E2 No tsunami alerts
04:55 JST 16 Apr 2015 Sanriku Oki 10 km 5.0 39.4 N 143.9 E2 No tsunami alerts
05:17 JST 16 Apr 2015 Miyagi-ken Oki 40 km 4.0 38.5 N 142.1 E1 No tsunami alerts
11:49 JST 16 Apr 2015 Fukushima-ken Aizu 10 km 2.9 37.1 N 139.4 E2 No tsunami alerts
14:04 JST 16 Apr 2015 Shiga-ken Hokubu 10 km 3.2 35.4 N 135.9 E2 No tsunami alerts
15:41 JST 16 Apr 2015 Chiba-ken Toho-oki 60 km 3.5 35.4 N 140.5 E1 No tsunami alerts
16:38 JST 16 Apr 2015 Ibaraki-ken Oki 50 km 4.1 36.7 N 141.0 E3 No tsunami alerts
17:17 JST 16 Apr 2015 Bungo-suido 40 km 4.0 33.0 N 132.1 E2 No tsunami alerts
00:22 JST 18 Apr 2015 Chichijima Kinkai very shallow 4.6 27.2 N 141.6 E1 No tsunami alerts
00:51 JST 18 Apr 2015 Chiba-ken Toho-oki very shallow 3.3 35.8 N 140.9 E1 No tsunami alerts
18:35 JST 18 Apr 2015 Hyuga-nada very shallow 4.6 32.0 N 132.1 E2 No tsunami alerts
23:18 JST 18 Apr 2015 Hyuga-nada 10 km 3.9 32.0 N 132.2 E1 No tsunami alerts
00:33 JST 19 Apr 2015 Niigata-ken Chuetsu-chiho 20 km 2.4 37.0 N 138.6 E1 No tsunami alerts
03:02 JST 19 Apr 2015 Hyuga-nada very shallow 3.6 32.0 N 132.1 E1 No tsunami alerts
04:02 JST 19 Apr 2015 Chichijima Kinkai 60 km 2.9 26.3 N 142.2 E1 No tsunami alerts
08:02 JST 19 Apr 2015 Tochigi-ken Nambu 70 km 3.5 36.4 N 140.0 E1 No tsunami alerts
14:40 JST 19 Apr 2015 Kumamoto-ken Kumamoto-chiho 10 km 2.3 33.0 N 130.9 E1 No tsunami alerts
23:47 JST 19 Apr 2015 Fukushima-ken Oki 30 km 3.3 37.4 N 141.3 E1 No tsunami alerts
01:00 JST 20 Apr 2015 Aichi-ken Tobu 40 km 3.3 34.7 N 137.4 E2 No tsunami alerts
10:43 JST 20 Apr 2015 Yonagunijima Kinkai very shallow 6.8 23.9 N 122.5 E4 Tsunami alert issued
10:49 JST 20 Apr 2015 Yonagunijima Kinkai 20 km 5.2 24.3 N 122.4 E1 Tsunami alert issued
15:16 JST 20 Apr 2015 Ibaraki-ken Hokubu very shallow 3.1 36.7 N 140.6 E1 No tsunami alerts
20:45 JST 20 Apr 2015 Yonagunijima Kinkai 20 km 5.9 24.0 N 122.5 E3 No tsunami alerts
21:00 JST 20 Apr 2015 Yonagunijima Kinkai 30 km 6.4 24.0 N 122.5 E2  
05:15 JST 21 Apr 2015 Ishikawa-ken Seiho-oki 10 km 3.1 37.0 N 136.7 E2 No tsunami alerts
17:54 JST 21 Apr 2015 Iwate-ken Engan-hokubu 60 km 3.9 39.6 N 142.0 E1 No tsunami alerts
18:51 JST 21 Apr 2015 Yonagunijima Kinkai 10 km 4.2 24.7 N 122.7 E1 No tsunami alerts
21:33 JST 21 Apr 2015 Miyagi-ken Oki 50 km 3.5 38.3 N 141.9 E1 No tsunami alerts
05:25 JST 22 Apr 2015 Wakayama-ken Hokubu 10 km 2.8 34.1 N 135.4 E2 No tsunami alerts
12:45 JST 22 Apr 2015 Tosa-wan 30 km 3.1 33.3 N 133.3 E1 No tsunami alerts
16:37 JST 22 Apr 2015 Chiba-ken Toho-oki 10 km 3.7 35.8 N 141.0 E1 No tsunami alerts
17:37 JST 22 Apr 2015 Ibaraki-ken Hokubu 10 km 2.9 36.7 N 140.7 E2 No tsunami alerts
18:11 JST 22 Apr 2015 Chiba-ken Nanto-oki 20 km 3.0 35.1 N 140.3 E1 No tsunami alerts
20:32 JST 22 Apr 2015 Ibaraki-ken Hokubu very shallow 3.1 36.7 N 140.7 E2 No tsunami alerts
02:24 JST 23 Apr 2015 Ibaraki-ken Oki 50 km 4.0 36.6 N 141.0 E2 No tsunami alerts
05:51 JST 23 Apr 2015 Kagoshima-ken Osumi-chiho 60 km 2.8 31.5 N 131.0 E1 No tsunami alerts
06:32 JST 23 Apr 2015 Fukushima-ken Oki 50 km 3.9 37.0 N 141.3 E2 No tsunami alerts
09:52 JST 23 Apr 2015 Nagano-ken Hokubu 20 km 1.8 36.7 N 138.5 E1 No tsunami alerts
11:14 JST 23 Apr 2015 Chiba-ken Hokuseibu 80 km 3.4 35.6 N 140.2 E1 No tsunami alerts
15:03 JST 23 Apr 2015 Miyagi-ken Oki 50 km 2.9 38.7 N 141.8 E1 No tsunami alerts
19:14 JST 23 Apr 2015 Izu-ohshima Kinkai very shallow 2.7 34.7 N 139.3 E1 No tsunami alerts
19:18 JST 23 Apr 2015 Miyagi-ken Oki 50 km 4.2 38.6 N 141.9 E2 No tsunami alerts
21:23 JST 23 Apr 2015 Urakawa Oki 60 km 4.3 41.9 N 142.3 E2 No tsunami alerts
22:15 JST 23 Apr 2015 Aomori-ken Shimokita-chiho very shallow 3.9 41.3 N 141.2 E4 No tsunami alerts
03:27 JST 24 Apr 2015 Niigata-ken Chuetsu-chiho 30 km 3.8 37.2 N 138.8 E2 No tsunami alerts
11:59 JST 24 Apr 2015 Saitama-ken Nambu 100 km 4.0 36.0 N 139.5 E1 No tsunami alerts
12:28 JST 24 Apr 2015 Nagano-ken Hokubu 10 km 2.4 36.8 N 138.5 E1 No tsunami alerts
16:47 JST 24 Apr 2015 Nagano-ken Nambu 10 km 2.7 35.8 N 137.5 E1 No tsunami alerts
03:23 JST 25 Apr 2015 Ibaraki-ken Oki 40 km 4.0 36.5 N 141.1 E1 No tsunami alerts
04:29 JST 25 Apr 2015 Miyagi-ken Oki 50 km 3.8 38.9 N 142.1 E1 No tsunami alerts
12:11 JST 25 Apr 2015 Hyogo-ken Nanseibu 10 km 2.9 35.0 N 134.6 E1 No tsunami alerts
15:36 JST 25 Apr 2015 Hachijojima Toho-oki 80 km 5.0 32.9 N 140.5 E2 No tsunami alerts
23:16 JST 25 Apr 2015 Bungo-suido 40 km 3.1 33.4 N 132.3 E1 No tsunami alerts
02:18 JST 26 Apr 2015 Wakayama-ken Hokubu 10 km 2.7 34.0 N 135.3 E1 No tsunami alerts
02:46 JST 26 Apr 2015 Fukushima-ken Aizu very shallow 2.7 37.0 N 139.4 E2 No tsunami alerts
05:01 JST 26 Apr 2015 Yonagunijima Kinkai 20 km 5.6 23.9 N 122.5 E2 No tsunami alerts
06:17 JST 26 Apr 2015 Hiroshima-ken Hokubu 20 km 4.0 34.8 N 132.6 E2 No tsunami alerts
06:42 JST 26 Apr 2015 Iwate-ken Oki 40 km 3.5 39.0 N 142.4 E1 No tsunami alerts
12:38 JST 26 Apr 2015 Iwate-ken Engan-hokubu 110 km 3.9 40.4 N 141.6 E2 No tsunami alerts
21:12 JST 26 Apr 2015 Miyagi-ken Oki 60 km 4.0 38.2 N 141.8 E1 No tsunami alerts
22:08 JST 26 Apr 2015 Tochigi-ken Hokubu 10 km 2.4 36.9 N 139.5 E1 No tsunami alerts
22:12 JST 26 Apr 2015 Miyagi-ken Oki 50 km 3.3 38.7 N 141.7 E1 No tsunami alerts
23:42 JST 26 Apr 2015 Iwate-ken Oki 40 km 3.5 40.3 N 142.2 E1 No tsunami alerts
01:41 JST 27 Apr 2015 Nagano-ken Hokubu very shallow 1.7 36.7 N 138.1 E2 No tsunami alerts
03:46 JST 27 Apr 2015 Nagano-ken Hokubu very shallow 1.9 36.6 N 137.8 E1 No tsunami alerts
07:01 JST 27 Apr 2015 Ibaraki-ken Oki 50 km 3.4 36.6 N 140.9 E1 No tsunami alerts
20:13 JST 27 Apr 2015 Ibaraki-ken Hokubu 10 km 3.1 36.6 N 140.5 E2 No tsunami alerts
10:17 JST 28 Apr 2015 Amami-oshima Kinkai 10 km 3.0 28.5 N 129.4 E1 No tsunami alerts
02:49 JST 29 Apr 2015 Nemuro-hanto Nanto-oki 50 km 4.0 43.2 N 145.9 E2 No tsunami alerts
02:50 JST 29 Apr 2015 Yamanashi-ken Chu-seibu 20 km 2.1 35.3 N 138.5 E1 No tsunami alerts
06:09 JST 29 Apr 2015 Miyakojima Kinkai 50 km 3.5 24.7 N 125.4 E1 No tsunami alerts
09:27 JST 29 Apr 2015 Okinawa-honto Kinkai 10 km 5.0 26.0 N 128.7 E1 No tsunami alerts
23:12 JST 29 Apr 2015 Shizuoka-ken Seibu 20 km 3.0 35.1 N 138.0 E1 No tsunami alerts
01:10 JST 30 Apr 2015 Iwate-ken Oki 30 km 5.3 40.1 N 142.8 E3 No tsunami alerts
04:44 JST 30 Apr 2015 Ishigakijima Kinkai 20 km 4.0 24.4 N 124.2 E2 No tsunami alerts
07:07 JST 30 Apr 2015 Aichi-ken Tobu 30 km 2.4 34.9 N 137.6 E1 No tsunami alerts
09:43 JST 30 Apr 2015 Urakawa Oki 60 km 3.9 42.0 N 142.6 E1 No tsunami alerts
16:33 JST 30 Apr 2015 Iwate-ken Oki 40 km 3.9 40.4 N 142.3 E1 No tsunami alerts
23:54 JST 30 Apr 2015 Urakawa Oki 50 km 4.2 42.1 N 142.6 E2 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