J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Mag Intensity Remarks
02:07:00 JST 01 Apr 2021 Off the coast of Miyagi 50 3.7 38.3 N 141.6 E1 No tsunami alerts
13:30:00 JST 01 Apr 2021 Off the east coast of Aomori 70 4.5 41.5 N 142.1 E3 No tsunami alerts
15:19:00 JST 01 Apr 2021 Off the coast of Miyagi 60 3.9 38.3 N 141.6 E1 No tsunami alerts
22:21:00 JST 01 Apr 2021 Miyazaki-Southern Plains 60 3.0 31.9 N 131.4 E1 No tsunami alerts
06:22:00 JST 02 Apr 2021 Wakayama-South 50 3.4 33.9 N 135.4 E1 No tsunami alerts
06:38:00 JST 02 Apr 2021 Kagoshima Satsuma 0 2.9 31.7 N 130.5 E3 No tsunami alerts
08:36:00 JST 02 Apr 2021 Tokachi-Central 80 3.4 42.7 N 143.2 E2 No tsunami alerts
09:31:00 JST 02 Apr 2021 Tottori-Central 10 2.8 35.4 N 133.9 E1 No tsunami alerts
00:10:00 JST 03 Apr 2021 Off the coast of Miyagi 60 3.7 38.3 N 141.6 E1 No tsunami alerts
01:10:00 JST 03 Apr 2021 Ibaraki-South 50 2.8 36.2 N 139.8 E1 No tsunami alerts
01:36:00 JST 03 Apr 2021 Off the coast of Fukushima 50 4.2 37.7 N 141.7 E2 No tsunami alerts
21:58:00 JST 03 Apr 2021 Off the coast of Miyagi 50 4.5 38.9 N 142.1 E3 No tsunami alerts
12:24:00 JST 04 Apr 2021 Fukushima-Hamadori 10 3.3 37.0 N 140.8 E1 No tsunami alerts
20:27:00 JST 04 Apr 2021 Near the coast of Okinawa Island 50 3.7 27.4 N 128.6 E3 No tsunami alerts
02:19:00 JST 05 Apr 2021 Abashiri 10 3.4 43.5 N 144.0 E3 No tsunami alerts
02:21:00 JST 05 Apr 2021 Kushiro-South Central 10 2.5 43.4 N 144.1 E2 No tsunami alerts
02:42:00 JST 05 Apr 2021 Abashiri 10 3.3 43.5 N 144.0 E3 No tsunami alerts
02:44:00 JST 05 Apr 2021 Kushiro-South Central 0 2.3 43.5 N 144.1 E1 No tsunami alerts
05:16:00 JST 05 Apr 2021 Kushiro-South Central 0 2.3 43.5 N 144.1 E1 No tsunami alerts
06:22:00 JST 05 Apr 2021 Shizuoka-West 40 4.3 34.7 N 137.7 E3 No tsunami alerts
09:31:00 JST 05 Apr 2021 Off the east coast of Hachijojima 60 4.6 33.5 N 140.5 E1 No tsunami alerts
11:16:00 JST 05 Apr 2021 Off the southeast coast of Nemuro Peninsula 70 3.5 43.2 N 146.1 E1 No tsunami alerts
14:36:00 JST 05 Apr 2021 Nagano-North 10 2.8 36.5 N 137.8 E2 No tsunami alerts
03:19:00 JST 06 Apr 2021 Nagano-North 10 2.7 36.5 N 137.8 E2 No tsunami alerts
21:20:00 JST 06 Apr 2021 Off the coast of Fukushima 40 3.5 37.4 N 141.6 E1 No tsunami alerts
21:58:00 JST 06 Apr 2021 50 3.2 33.8 N 135.2 E1 No tsunami alerts
01:44:00 JST 07 Apr 2021 Off the southeast coast of Nemuro Peninsula 50 4.2 43.1 N 145.6 E2 No tsunami alerts
05:10:00 JST 07 Apr 2021 Off the coast of Miyagi 40 4.0 38.1 N 142.3 E1 No tsunami alerts
06:29:00 JST 07 Apr 2021 Hyogo-North 10 2.8 35.4 N 134.7 E1 No tsunami alerts
18:06:00 JST 07 Apr 2021 Off the coast of Ibaraki 60 3.1 36.5 N 140.7 E1 No tsunami alerts
04:21:00 JST 08 Apr 2021 Nagano-North 10 2.7 37.0 N 138.5 E1 No tsunami alerts
16:09:00 JST 08 Apr 2021 10 2.0 32.3 N 130.6 E1 No tsunami alerts
16:30:00 JST 08 Apr 2021 10 2.2 32.3 N 130.6 E1 No tsunami alerts
21:24:00 JST 08 Apr 2021 10 2.2 32.3 N 130.6 E1 No tsunami alerts
23:54:00 JST 08 Apr 2021 Near the coast of Okinawa Island 60 3.8 26.0 N 126.8 E1 No tsunami alerts
04:54:00 JST 09 Apr 2021 Off the coast of Akita 10 3.1 39.8 N 139.7 E1 No tsunami alerts
17:54:00 JST 09 Apr 2021 Iwate Northern Coast 60 4.0 39.8 N 141.8 E2 No tsunami alerts
20:44:00 JST 09 Apr 2021 0 1.9 31.3 N 130.6 E1 No tsunami alerts
22:47:00 JST 09 Apr 2021 Kamikawa-North 0 2.2 44.3 N 142.1 E2 No tsunami alerts
23:30:00 JST 09 Apr 2021 Near the coast of Tokara Islands 30 2.7 29.4 N 129.3 E1 No tsunami alerts
23:46:00 JST 09 Apr 2021 Near the coast of Tokara Islands 30 3.5 29.3 N 129.3 E2 No tsunami alerts
00:38:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.9 29.3 N 129.3 E1 No tsunami alerts
00:48:00 JST 10 Apr 2021 Kamikawa-North 0 2.1 44.4 N 142.2 E2 No tsunami alerts
00:57:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.2 29.3 N 129.3 E1 No tsunami alerts
01:59:00 JST 10 Apr 2021 Off the coast of Fukushima 50 4.3 37.7 N 141.8 E2 No tsunami alerts
03:04:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.1 N 129.3 E1 No tsunami alerts
03:17:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 3.7 29.3 N 129.5 E2 No tsunami alerts
03:39:00 JST 10 Apr 2021 Near the coast of Miyakojima 50 3.4 24.8 N 125.4 E1 No tsunami alerts
06:05:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.8 29.3 N 129.4 E3 No tsunami alerts
06:32:00 JST 10 Apr 2021 Off the east coast of Chiba 60 3.3 35.4 N 140.5 E1 No tsunami alerts
06:50:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.6 29.3 N 129.5 E1 No tsunami alerts
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
07:22:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.2 29.3 N 129.4 E1 No tsunami alerts
07:26:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.4 E1 No tsunami alerts
08:10:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.3 29.3 N 129.4 E1 No tsunami alerts
08:35:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 3.0 29.3 N 129.4 E1 No tsunami alerts
09:10:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.3 29.3 N 129.4 E1 No tsunami alerts
09:19:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.2 29.3 N 129.2 E2 No tsunami alerts
09:30:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.6 29.3 N 129.3 E1 No tsunami alerts
09:38:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.5 29.3 N 129.2 E2 No tsunami alerts
09:54:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.5 29.3 N 129.4 E1 No tsunami alerts
10:10:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.3 E1 No tsunami alerts
10:20:00 JST 10 Apr 2021 Near the coast of Tokara Islands 0 2.6 29.3 N 129.4 E1 No tsunami alerts
10:23:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.5 29.3 N 129.3 E1 No tsunami alerts
10:27:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.2 29.4 N 129.3 E1 No tsunami alerts
10:38:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.5 29.3 N 129.3 E1 No tsunami alerts
10:42:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.3 E2 No tsunami alerts
10:47:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 3.4 29.4 N 129.0 E2 No tsunami alerts
10:52:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.2 29.3 N 129.2 E1 No tsunami alerts
10:54:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 4.2 29.3 N 129.3 E3 No tsunami alerts
10:59:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.4 29.3 N 129.3 E1 No tsunami alerts
11:02:00 JST 10 Apr 2021 Off the coast of Iwate 40 3.2 39.1 N 142.2 E1 No tsunami alerts
11:08:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.9 29.3 N 129.2 E1 No tsunami alerts
11:15:00 JST 10 Apr 2021 Near the coast of Tokara Islands 0 2.6 29.2 N 129.4 E1 No tsunami alerts
11:21:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.3 29.4 N 129.4 E1 No tsunami alerts
11:45:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.3 E1 No tsunami alerts
11:50:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.1 29.3 N 129.2 E1 No tsunami alerts
11:56:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.1 29.3 N 129.3 E1 No tsunami alerts
12:07:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.5 29.3 N 129.4 E1 No tsunami alerts
12:53:00 JST 10 Apr 2021 Near the coast of Tokara Islands 0 2.6 29.3 N 129.4 E1 No tsunami alerts
12:56:00 JST 10 Apr 2021 Near the coast of Tokara Islands 0 3.2 29.4 N 129.4 E1 No tsunami alerts
13:06:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.2 29.3 N 129.3 E2 No tsunami alerts
13:20:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.3 E1 No tsunami alerts
13:27:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.3 29.3 N 129.3 E2 No tsunami alerts
13:36:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.6 29.3 N 129.3 E1 No tsunami alerts
13:51:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.3 E2 No tsunami alerts
13:57:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.4 29.3 N 129.3 E1 No tsunami alerts
14:06:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.1 29.3 N 129.3 E2 No tsunami alerts
14:07:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 4.4 29.3 N 129.3 E3 No tsunami alerts
14:18:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.3 29.2 N 129.5 E1 No tsunami alerts
14:25:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.8 29.3 N 129.3 E2 No tsunami alerts
14:32:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.6 29.3 N 129.4 E2 No tsunami alerts
14:56:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.6 29.3 N 129.4 E1 No tsunami alerts
15:17:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.6 29.3 N 129.3 E1 No tsunami alerts
15:21:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.7 29.3 N 129.4 E1 No tsunami alerts
15:39:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.5 29.2 N 129.2 E2 No tsunami alerts
15:52:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 4.9 29.3 N 129.3 E3 No tsunami alerts
16:02:00 JST 10 Apr 2021 Near the coast of Tokara Islands 0 2.0 29.2 N 129.4 E1 No tsunami alerts
16:16:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.9 29.3 N 129.4 E1 No tsunami alerts
16:29:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.2 E1 No tsunami alerts
16:32:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.7 29.4 N 129.3 E1 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
16:50:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.5 29.3 N 129.4 E1 No tsunami alerts
17:09:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 3.6 29.2 N 129.5 E2 No tsunami alerts
17:20:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.4 N 129.0 E1 No tsunami alerts
17:28:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.4 E1 No tsunami alerts
17:31:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.2 29.3 N 129.3 E2 No tsunami alerts
17:38:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.8 29.3 N 129.3 E2 No tsunami alerts
17:48:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.6 29.3 N 129.2 E2 No tsunami alerts
17:54:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.2 N 129.2 E1 No tsunami alerts
18:02:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.1 29.2 N 129.3 E1 No tsunami alerts
18:06:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.2 E1 No tsunami alerts
18:12:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.3 29.3 N 129.3 E2 No tsunami alerts
18:25:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.7 29.3 N 129.4 E1 No tsunami alerts
18:34:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.4 E1 No tsunami alerts
18:39:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.4 E1 No tsunami alerts
18:44:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.4 E2 No tsunami alerts
19:17:00 JST 10 Apr 2021 Wakayama-South 60 3.6 33.9 N 135.4 E1 No tsunami alerts
19:25:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.7 29.3 N 129.3 E1 No tsunami alerts
19:39:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.4 29.3 N 129.5 E1 No tsunami alerts
19:53:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.4 29.2 N 129.4 E1 No tsunami alerts
20:21:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.5 29.3 N 129.4 E1 No tsunami alerts
21:00:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.7 29.3 N 129.4 E1 No tsunami alerts
21:06:00 JST 10 Apr 2021 Near the coast of Tokara Islands 30 2.7 29.4 N 129.3 E1 No tsunami alerts
21:11:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.5 29.3 N 129.5 E1 No tsunami alerts
21:35:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 3.3 29.3 N 129.4 E2 No tsunami alerts
21:43:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.6 29.3 N 129.4 E2 No tsunami alerts
21:49:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.9 29.3 N 129.4 E1 No tsunami alerts
22:02:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.3 29.3 N 129.4 E2 No tsunami alerts
22:10:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 4.7 29.4 N 129.1 E3 No tsunami alerts
22:32:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.4 E1 No tsunami alerts
22:42:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.1 29.3 N 129.3 E2 No tsunami alerts
22:49:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.0 29.3 N 129.3 E1 No tsunami alerts
22:54:00 JST 10 Apr 2021 Near the coast of Tokara Islands 10 2.6 29.2 N 129.4 E1 No tsunami alerts
22:58:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 3.4 29.3 N 129.3 E2 No tsunami alerts
23:09:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 4.0 29.3 N 129.3 E3 No tsunami alerts
23:13:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.2 E1 No tsunami alerts
23:16:00 JST 10 Apr 2021 Near the coast of Tokara Islands 20 2.8 29.3 N 129.4 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