J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
06:08:00 JST 01 Aug 2023 Ibaraki-South 50 3.5 36.2 N 139.8 E1 No tsunami alerts
06:12:00 JST 01 Aug 2023 Off the coast of Sanriku 10 4.7 39.6 N 143.4 E1 No tsunami alerts
06:38:00 JST 01 Aug 2023 Fukushima-Aizu 0 1.9 37.1 N 139.4 E1 No tsunami alerts
17:38:00 JST 01 Aug 2023 Off the coast of Fukushima 30 4.3 37.0 N 141.7 E2 No tsunami alerts
21:05:00 JST 01 Aug 2023 Off the coast of Fukushima 20 3.8 37.5 N 141.3 E1 No tsunami alerts
22:07:00 JST 01 Aug 2023 Akita Northern Inland 120 4.4 40.2 N 140.6 E1 No tsunami alerts
00:26:00 JST 02 Aug 2023 Off the coast of Miyagi 70 3.8 38.8 N 141.6 E1 No tsunami alerts
00:36:00 JST 02 Aug 2023 10 2.8 37.0 N 138.4 E1 No tsunami alerts
02:46:00 JST 02 Aug 2023 Iwate Southern Inland 10 3.1 39.1 N 140.9 E1 No tsunami alerts
08:07:00 JST 02 Aug 2023 Ibaraki-North 10 3.1 36.8 N 140.6 E1 No tsunami alerts
08:14:00 JST 02 Aug 2023 Ibaraki-North 10 3.4 36.8 N 140.6 E1 No tsunami alerts
11:11:00 JST 02 Aug 2023 Hiroshima-North 10 2.7 35.0 N 133.1 E1 No tsunami alerts
19:28:00 JST 02 Aug 2023 Off the east coast of Souya 10 2.4 45.0 N 142.6 E1 No tsunami alerts
21:06:00 JST 03 Aug 2023 10 3.4 37.6 N 137.3 E1 No tsunami alerts
00:55:00 JST 04 Aug 2023 Shimane-East 10 2.6 35.4 N 133.3 E1 No tsunami alerts
03:23:00 JST 04 Aug 2023 Near the coast of Tokara Islands 0 2.2 30.0 N 130.1 E1 No tsunami alerts
22:36:00 JST 04 Aug 2023 0 2.0 37.4 N 137.4 E1 No tsunami alerts
04:21:00 JST 05 Aug 2023 Kii Channel 50 3.3 34.0 N 134.7 E1 No tsunami alerts
04:27:00 JST 05 Aug 2023 Off the coast of Ibaraki 90 3.8 36.8 N 140.8 E2 No tsunami alerts
12:50:00 JST 05 Aug 2023 Fukushima-Aizu 10 2.2 37.1 N 139.4 E1 No tsunami alerts
20:26:00 JST 05 Aug 2023 Near the coast of Tokara Islands 20 2.3 29.9 N 130.0 E1 No tsunami alerts
12:04:00 JST 06 Aug 2023 Near the coast of Amami Oshima 10 3.5 27.9 N 128.9 E1 No tsunami alerts
03:12:00 JST 07 Aug 2023 Off the east coast of Osumi Peninsula 40 5.4 30.8 N 131.4 E3 No tsunami alerts
03:32:00 JST 07 Aug 2023 Off the east coast of Osumi Peninsula 40 4.7 30.8 N 131.5 E3 No tsunami alerts
04:40:00 JST 07 Aug 2023 Ishakawa Noto 10 2.9 37.5 N 137.2 E1 No tsunami alerts
05:31:00 JST 07 Aug 2023 Northern Wakayama 10 2.9 34.3 N 135.4 E2 No tsunami alerts
08:18:00 JST 07 Aug 2023 Near the coast of Tokara Islands 10 3.0 30.0 N 130.0 E2 No tsunami alerts
13:04:00 JST 07 Aug 2023 Bungo channel 30 3.0 32.8 N 132.4 E1 No tsunami alerts
13:48:00 JST 07 Aug 2023 Off the coast of Fukushima 20 4.6 37.3 N 142.2 E1 No tsunami alerts
04:51:00 JST 08 Aug 2023 10 2.2 32.8 N 130.7 E1 No tsunami alerts
23:01:00 JST 08 Aug 2023 Hyuganada 30 3.9 32.2 N 132.1 E2 No tsunami alerts
02:43:00 JST 09 Aug 2023 Off the coast of Miyagi 50 4.3 38.0 N 141.8 E2 No tsunami alerts
05:48:00 JST 09 Aug 2023 Near the coast of Tokara Islands 20 3.2 29.9 N 130.0 E1 No tsunami alerts
12:48:00 JST 09 Aug 2023 Off the east coast of Chiba 10 3.3 35.8 N 140.9 E2 No tsunami alerts
20:41:00 JST 09 Aug 2023 Off the east coast of Chiba 60 3.9 35.1 N 140.6 E2 No tsunami alerts
04:42:00 JST 10 Aug 2023 Tochigi-South 10 2.7 36.6 N 139.5 E1 No tsunami alerts
12:27:00 JST 10 Aug 2023 Off the coast of Fukushima 50 3.7 37.2 N 141.5 E1 No tsunami alerts
23:18:00 JST 10 Aug 2023 Hiroshima-North 10 3.2 34.8 N 132.9 E1 No tsunami alerts
01:24:00 JST 11 Aug 2023 Hyuganada 40 2.9 32.8 N 132.1 E1 No tsunami alerts
09:14:00 JST 11 Aug 2023 Off the east coast of Aomori 20 5.9 41.2 N 142.9 E4 No tsunami alerts
09:34:00 JST 11 Aug 2023 Off the east coast of Aomori 20 3.9 41.1 N 142.9 E1 No tsunami alerts
13:34:00 JST 11 Aug 2023 Near the coast of Tokara Islands 10 2.3 29.9 N 130.0 E1 No tsunami alerts
22:20:00 JST 11 Aug 2023 Off the coast of Miyagi 60 4.7 38.7 N 142.4 E3 No tsunami alerts
23:42:00 JST 11 Aug 2023 Near the coast of Tokara Islands 10 1.8 30.0 N 130.0 E1 No tsunami alerts
03:09:00 JST 12 Aug 2023 Aichi-West 40 3.9 34.9 N 137.3 E2 No tsunami alerts
04:11:00 JST 12 Aug 2023 Off the coast of Ibaraki 40 3.2 36.4 N 141.1 E1 No tsunami alerts
13:24:00 JST 12 Aug 2023 Off the NE coast of Amami Oshima 50 4.4 29.4 N 130.6 E1 No tsunami alerts
19:40:00 JST 12 Aug 2023 Off the coast of Shikoku 30 3.2 32.7 N 132.8 E1 No tsunami alerts
23:30:00 JST 12 Aug 2023 Soya-North 10 3.0 45.1 N 141.9 E2 No tsunami alerts
09:38:00 JST 13 Aug 2023 Soya-North 10 2.7 45.1 N 141.9 E2 No tsunami alerts
01:14:00 JST 15 Aug 2023 Gifu-Hida 0 2.1 36.0 N 137.5 E1 No tsunami alerts
09:08:00 JST 15 Aug 2023 Off the coast of Miyagi 60 3.8 38.9 N 141.7 E2 No tsunami alerts
20:26:00 JST 15 Aug 2023 Near the coast of Tokara Islands 0 2.0 29.9 N 130.0 E1 No tsunami alerts
02:07:00 JST 16 Aug 2023 Near the coast of Miyakojima 50 4.7 24.8 N 125.4 E3 No tsunami alerts
14:47:00 JST 16 Aug 2023 Nara Prefecture 60 3.0 34.2 N 135.8 E1 No tsunami alerts
17:56:00 JST 16 Aug 2023 Off the coast of Fukushima 50 3.9 37.8 N 141.6 E1 No tsunami alerts
19:25:00 JST 16 Aug 2023 Ishakawa Noto 10 3.1 37.5 N 137.3 E2 No tsunami alerts
22:29:00 JST 16 Aug 2023 Iwate Northern Coast 60 4.2 39.8 N 141.8 E2 No tsunami alerts
22:59:00 JST 16 Aug 2023 Off the coast of Miyagi 50 4.1 38.0 N 141.8 E2 No tsunami alerts
11:32:00 JST 17 Aug 2023 Bungo channel 30 3.4 32.8 N 132.4 E1 No tsunami alerts
20:51:00 JST 17 Aug 2023 Hyuganada 40 3.2 32.7 N 132.0 E2 No tsunami alerts
07:00:00 JST 18 Aug 2023 Ishakawa Noto 10 3.2 37.5 N 137.2 E1 No tsunami alerts
03:22:00 JST 19 Aug 2023 Off the coast of Iwate 50 4.0 39.6 N 142.1 E2 No tsunami alerts
03:33:00 JST 19 Aug 2023 Tokachi-South 50 5.1 42.4 N 143.1 E3 No tsunami alerts
14:07:00 JST 19 Aug 2023 Fukui-Reihoku 10 4.3 35.9 N 136.7 E3 No tsunami alerts
17:11:00 JST 19 Aug 2023 10 2.5 32.6 N 130.6 E1 No tsunami alerts
17:15:00 JST 19 Aug 2023 Fukui-Reihoku 10 2.6 35.9 N 136.7 E1 No tsunami alerts
23:21:00 JST 19 Aug 2023 Near Kunashir 60 4.4 43.6 N 146.1 E3 No tsunami alerts
06:16:00 JST 20 Aug 2023 Near the coast of Tokara Islands 20 1.8 29.9 N 130.0 E1 No tsunami alerts
10:27:00 JST 20 Aug 2023 Fukui-Reihoku 10 3.0 35.9 N 136.7 E1 No tsunami alerts
19:12:00 JST 20 Aug 2023 Tochigi-North 100 3.5 36.8 N 140.0 E1 No tsunami alerts
00:25:00 JST 21 Aug 2023 Gifu Mino Midwest 20 2.8 35.5 N 136.8 E1 No tsunami alerts
15:24:00 JST 21 Aug 2023 0 2.8 37.5 N 137.4 E1 No tsunami alerts
19:04:00 JST 21 Aug 2023 Tokachi-Central 120 4.2 42.7 N 143.0 E2 No tsunami alerts
20:47:00 JST 21 Aug 2023 Near the coast of Okinawa Island 30 4.0 27.3 N 129.0 E2 No tsunami alerts
21:27:00 JST 21 Aug 2023 Ishakawa Noto 10 2.2 37.5 N 137.3 E1 No tsunami alerts
02:41:00 JST 22 Aug 2023 Off the coast of Miyagi 60 4.3 38.3 N 141.8 E2 No tsunami alerts
08:30:00 JST 22 Aug 2023 Gunma-South 10 3.1 36.5 N 139.4 E2 No tsunami alerts
13:38:00 JST 22 Aug 2023 Iwate Northern Coast 60 3.5 39.5 N 141.7 E1 No tsunami alerts
14:37:00 JST 22 Aug 2023 Off the coast of Fukushima 60 3.8 37.8 N 141.6 E1 No tsunami alerts
22:17:00 JST 22 Aug 2023 Yamanashi East-Fuji 5 Lakes 20 2.9 35.5 N 139.0 E1 No tsunami alerts
00:03:00 JST 23 Aug 2023 Off the coast of Iwate 20 4.6 40.2 N 141.9 E3 No tsunami alerts
08:28:00 JST 23 Aug 2023 Ibaraki-North 10 2.8 36.7 N 140.6 E1 No tsunami alerts
00:50:00 JST 24 Aug 2023 Wakayama-South 40 3.5 33.9 N 135.7 E2 No tsunami alerts
01:27:00 JST 24 Aug 2023 Off the coast of Fukushima 10 3.7 36.9 N 141.3 E1 No tsunami alerts
02:42:00 JST 24 Aug 2023 Gunma-South 90 3.2 36.3 N 139.2 E1 No tsunami alerts
09:45:00 JST 24 Aug 2023 Ishakawa Noto 10 2.5 37.5 N 137.2 E1 No tsunami alerts
13:49:00 JST 24 Aug 2023 Fukushima-Aizu 10 2.3 37.1 N 139.4 E1 No tsunami alerts
13:58:00 JST 24 Aug 2023 Nakasaki-Southwest 10 1.9 32.9 N 130.0 E1 No tsunami alerts
20:05:00 JST 24 Aug 2023 Off the coast of Miyagi 70 3.8 38.8 N 141.6 E1 No tsunami alerts
06:40:00 JST 25 Aug 2023 Near the coast of Tokara Islands 10 1.9 29.9 N 130.0 E1 No tsunami alerts
06:53:00 JST 25 Aug 2023 Near the coast of Tokara Islands 10 2.3 29.9 N 130.0 E1 No tsunami alerts
06:58:00 JST 25 Aug 2023 Near the coast of Tokara Islands 10 2.2 29.9 N 130.0 E1 No tsunami alerts
07:48:00 JST 25 Aug 2023 Off the coast of Sanriku 10 5.8 39.5 N 143.4 E3 No tsunami alerts
19:11:00 JST 25 Aug 2023 Off the coast of Sanriku 10 4.3 39.5 N 143.4 E1 No tsunami alerts
04:24:00 JST 26 Aug 2023 Gifu-Hida 10 2.7 36.1 N 137.5 E1 No tsunami alerts
07:02:00 JST 26 Aug 2023 Ibaraki-North 60 4.0 36.5 N 140.6 E2 No tsunami alerts
22:29:00 JST 26 Aug 2023 Suonada 80 4.6 33.9 N 131.9 E3 No tsunami alerts
23:39:00 JST 26 Aug 2023 Miyazaki-Northern Plains 20 2.2 32.1 N 131.5 E1 No tsunami alerts
09:56:00 JST 27 Aug 2023 Off the east coast of Chiba 40 4.5 35.5 N 141.0 E2 No tsunami alerts
15:47:00 JST 27 Aug 2023 Ibaraki-North 20 3.1 36.4 N 140.6 E1 No tsunami alerts
18:43:00 JST 27 Aug 2023 Near the coast of Tanegashima 10 2.3 30.5 N 130.9 E1 No tsunami alerts
22:56:00 JST 27 Aug 2023 Tochigi-North 10 3.3 36.6 N 139.4 E2 No tsunami alerts
04:29:00 JST 28 Aug 2023 Off the coast of Fukushima 30 4.0 37.5 N 141.3 E2 No tsunami alerts
18:00:00 JST 28 Aug 2023 Miyazaki-Southern Plains 60 3.7 31.6 N 131.3 E1 No tsunami alerts
18:08:00 JST 28 Aug 2023 Off the coast of Fukushima 10 4.8 37.1 N 142.3 E2 No tsunami alerts
04:55:00 JST 29 Aug 2023 520 7.1 6.8 N 116.6 EUnknNo tsunami alerts
08:09:00 JST 29 Aug 2023 Toyama-East 10 2.5 36.4 N 137.6 E1 No tsunami alerts
15:38:00 JST 29 Aug 2023 Near the coast of Amami Oshima 0 3.2 28.3 N 129.2 E1 No tsunami alerts
17:43:00 JST 29 Aug 2023 Miyazaki-Southern Mountains 10 2.3 31.9 N 130.9 E1 No tsunami alerts
19:38:00 JST 29 Aug 2023 Near the coast of Tokara Islands 0 2.1 29.7 N 129.9 E1 No tsunami alerts
21:37:00 JST 29 Aug 2023 Chiba-Northeastern 50 3.6 35.7 N 140.6 E1 No tsunami alerts
11:47:00 JST 30 Aug 2023 Ishakawa Noto 0 2.2 37.5 N 137.3 E1 No tsunami alerts
17:17:00 JST 30 Aug 2023 Northern Sanpachikamikita, Aomori 90 3.4 40.8 N 141.4 E1 No tsunami alerts
17:35:00 JST 30 Aug 2023 Off the coast of Miyagi 60 3.4 38.1 N 141.2 E1 No tsunami alerts
19:59:00 JST 30 Aug 2023 Kyoto-North 10 2.8 35.3 N 135.3 E1 No tsunami alerts
20:11:00 JST 30 Aug 2023 West Kanagawa 20 3.2 35.5 N 139.1 E1 No tsunami alerts
03:17:00 JST 31 Aug 2023 Kagoshima Satsuma 180 3.9 32.1 N 130.7 E1 No tsunami alerts
06:17:00 JST 31 Aug 2023 Off the coast of Fukushima 50 4.6 37.7 N 141.7 E2 No tsunami alerts
15:05:00 JST 31 Aug 2023 Off the coast of Fukushima 70 4.2 37.7 N 141.6 E2 No tsunami alerts
23:56:00 JST 31 Aug 2023 Off the coast of Iwate 50 3.4 39.9 N 142.4 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