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Quake Time Epicenter Latitude Longitude Depth Magnitude Intensity Remarks
04:42 JST 01 May 2012 Fukushima-ken Oki 30 km 4.0 37.3 N 141.6 E1 No tsunami alerts
04:54 JST 01 May 2012 Chiba-ken Hokutobu 50 km 4.0 35.7 N 140.7 E2 No tsunami alerts
05:00 JST 01 May 2012 Iwate-ken Oki 50 km 3.8 39.6 N 142.1 E1 No tsunami alerts
07:16 JST 01 May 2012 Ibaraki-ken Hokubu 60 km 3.5 36.5 N 140.6 E2 No tsunami alerts
08:28 JST 01 May 2012 Ibaraki-ken Hokubu 10 km 2.9 36.7 N 140.6 E1 No tsunami alerts
13:11 JST 01 May 2012 Chiba-ken Toho-oki 10 km 3.3 35.7 N 141.1 E1 No tsunami alerts
13:51 JST 01 May 2012 Shiga-ken Nambu 10 km 2.3 35.0 N 136.1 E1 No tsunami alerts
14:34 JST 01 May 2012 Iwoto Kinkai 130 km 5.4 25.4 N 141.4 E2 No tsunami alerts
16:41 JST 01 May 2012 Chiba-ken Nanto-oki 70 km 3.1 35.0 N 140.0 E1 No tsunami alerts
18:09 JST 01 May 2012 Ibaraki-ken Oki 50 km 3.5 36.6 N 141.0 E1 No tsunami alerts
00:39 JST 02 May 2012 Ibaraki-ken Oki 10 km 3.6 36.5 N 141.0 E1 No tsunami alerts
01:14 JST 02 May 2012 Chiba-ken Toho-oki 20 km 4.0 35.6 N 141.1 E1 No tsunami alerts
02:54 JST 02 May 2012 Ibaraki-ken Oki 40 km 3.4 36.4 N 141.0 E1 No tsunami alerts
05:20 JST 02 May 2012 Chiba-ken Toho-oki 20 km 3.1 35.7 N 141.1 E1 No tsunami alerts
06:28 JST 02 May 2012 Ibaraki-ken Oki 10 km 3.1 36.6 N 140.7 E1 No tsunami alerts
07:08 JST 02 May 2012 Miyagi-ken Oki 50 km 4.0 38.6 N 141.9 E2 No tsunami alerts
20:19 JST 02 May 2012 Kumamoto-ken Aso-chiho 10 km 3.0 32.9 N 131.0 E2 No tsunami alerts
20:27 JST 02 May 2012 Iwate-ken Oki 50 km 3.4 40.4 N 142.2 E1 No tsunami alerts
22:51 JST 02 May 2012 Nemuro-hanto Nanto-oki 50 km 3.7 43.3 N 146.3 E1 No tsunami alerts
23:33 JST 02 May 2012 Fukushima-ken Oki 30 km 4.1 37.0 N 141.2 E2 No tsunami alerts
01:20 JST 03 May 2012 Fukushima-ken Oki 20 km 4.1 36.9 N 141.4 E1 No tsunami alerts
02:15 JST 03 May 2012 Chiba-ken Toho-oki 20 km 2.9 35.7 N 140.9 E1 No tsunami alerts
03:07 JST 03 May 2012 Iwate-ken Oki 50 km 2.9 39.6 N 142.1 E1 No tsunami alerts
06:08 JST 03 May 2012 Iwate-ken Oki 30 km 3.9 39.4 N 142.4 E1 No tsunami alerts
10:03 JST 03 May 2012 Soya Toho-oki 10 km 2.8 45.1 N 142.8 E1 No tsunami alerts
16:15 JST 03 May 2012 Miyagi-ken Oki 50 km 4.0 38.9 N 141.9 E2 No tsunami alerts
06:21 JST 04 May 2012 Chishima-retto 150 km 5.4 46.0 N 152.3 E1 No tsunami alerts
08:59 JST 04 May 2012 Ibaraki-ken Oki 40 km 3.5 36.3 N 140.9 E1 No tsunami alerts
11:20 JST 04 May 2012 Chiba-ken Toho-oki 10 km 3.4 35.8 N 141.0 E2 No tsunami alerts
11:54 JST 04 May 2012 Chiba-ken Hokuseibu 80 km 4.2 35.6 N 140.2 EUnknNo tsunami alerts
12:01 JST 04 May 2012 Chiba-ken Hokuseibu 80 km 4.0 35.6 N 140.2 E2 No tsunami alerts
14:34 JST 04 May 2012 Kunashirito Fukin 80 km 4.6 43.3 N 145.5 E3 No tsunami alerts
15:55 JST 04 May 2012 Fukushima-ken Oki 50 km 4.0 36.9 N 141.1 E2 No tsunami alerts
18:21 JST 04 May 2012 Miyagi-ken Oki 60 km 3.5 38.5 N 142.0 E1 No tsunami alerts
02:04 JST 05 May 2012 Ibaraki-ken Nambu 50 km 2.9 36.1 N 140.0 E1 No tsunami alerts
03:04 JST 05 May 2012 Fukushima-ken Hamadori 20 km 3.8 37.0 N 140.6 E2 No tsunami alerts
05:01 JST 05 May 2012 Fukushima-ken Oki 30 km 3.6 37.0 N 141.4 E1 No tsunami alerts
05:57 JST 05 May 2012 Miyagi-ken Oki 50 km 3.5 38.3 N 141.8 E1 No tsunami alerts
06:15 JST 05 May 2012 Gifu-ken Hida-chiho 10 km 3.2 36.1 N 137.4 E2 No tsunami alerts
16:57 JST 05 May 2012 Wakayama-ken Hokubu 10 km 2.4 34.2 N 135.2 E1 No tsunami alerts
17:12 JST 05 May 2012 Chiba-ken Toho-oki 40 km 4.5 35.5 N 141.1 E2 No tsunami alerts
18:57 JST 05 May 2012 Aichi-ken Seibu 50 km 4.4 35.2 N 137.2 E3 No tsunami alerts
22:11 JST 05 May 2012 Ibaraki-ken Oki 50 km 3.2 36.6 N 140.9 E2 No tsunami alerts
23:44 JST 05 May 2012 Chiba-ken Toho-oki 50 km 3.7 35.7 N 140.8 E1 No tsunami alerts
02:21 JST 06 May 2012 Ibaraki-ken Oki 10 km 3.1 36.6 N 141.0 E1 No tsunami alerts
05:12 JST 06 May 2012 Miyagi-ken Oki 50 km 5.1 38.2 N 141.8 E3 No tsunami alerts
05:12 JST 06 May 2012 Miyagi-ken Oki 50 km 5.1 38.2 N 141.8 E3 Intensity correction
05:53 JST 06 May 2012 Chiba-ken Toho-oki 40 km 3.9 35.5 N 141.1 E1 No tsunami alerts
10:43 JST 06 May 2012 Ibaraki-ken Oki 10 km 3.6 36.8 N 141.3 E1 No tsunami alerts
12:43 JST 06 May 2012 Tochigi-ken Hokubu very shallow 2.4 36.9 N 139.4 E1 No tsunami alerts
15:07 JST 06 May 2012 Miyagi-ken Oki 60 km 4.0 38.4 N 141.9 E2 No tsunami alerts
18:35 JST 06 May 2012 Fukushima-ken Oki 20 km 3.8 37.1 N 141.3 E1 No tsunami alerts
04:04 JST 07 May 2012 Miyagi-ken Oki 40 km 3.5 38.4 N 142.2 E1 No tsunami alerts
06:14 JST 07 May 2012 Awajishima Fukin 10 km 2.6 34.4 N 134.8 E1 No tsunami alerts
06:55 JST 07 May 2012 Miyagi-ken Oki 40 km 4.1 38.4 N 142.2 E1 No tsunami alerts
09:17 JST 07 May 2012 Fukushima-ken Oki 50 km 4.2 37.3 N 141.7 E1 No tsunami alerts
16:25 JST 07 May 2012 Miyagi-ken Oki 50 km 3.0 38.7 N 141.8 E1 No tsunami alerts
16:56 JST 07 May 2012 Tokara-retto Kinkai 10 km 3.1 29.2 N 129.2 E1 No tsunami alerts
02:00 JST 08 May 2012 Chiba-ken Toho-oki 10 km 3.8 35.7 N 141.0 E2 No tsunami alerts
03:59 JST 08 May 2012 Fukushima-ken Oki 10 km 4.7 36.9 N 141.4 EUnknNo tsunami alerts
07:02 JST 08 May 2012 Fukushima-ken Oki 30 km 3.5 37.5 N 141.4 E1 No tsunami alerts
07:48 JST 08 May 2012 Akita-ken Nairiku-nambu 10 km 2.9 39.6 N 140.4 E1 No tsunami alerts
08:59 JST 08 May 2012 Chiba-ken Toho-oki 10 km 3.2 35.7 N 141.0 E1 No tsunami alerts
09:16 JST 08 May 2012 Fukushima-ken Oki 20 km 4.2 37.7 N 141.8 E1 No tsunami alerts
12:39 JST 08 May 2012 Fukushima-ken Nakadori 20 km 3.0 37.0 N 140.5 E1 No tsunami alerts
14:43 JST 08 May 2012 Fukushima-ken Oki 50 km 4.5 37.1 N 141.3 E2 No tsunami alerts
16:02 JST 08 May 2012 Iwate-ken Engan-hokubu 60 km 3.3 39.8 N 141.8 E1 No tsunami alerts
18:17 JST 08 May 2012 Fukushima-ken Oki 10 km 4.8 37.4 N 144.4 E1 No tsunami alerts
20:55 JST 08 May 2012 Oshima-chiho Tobu 10 km 2.3 41.9 N 140.6 E1 No tsunami alerts
23:48 JST 08 May 2012 Tokara-retto Kinkai 20 km 3.1 30.0 N 130.0 E2 No tsunami alerts
01:00 JST 09 May 2012 Iwate-ken Oki 30 km 3.7 39.0 N 142.5 E1 No tsunami alerts
06:47 JST 09 May 2012 Iwate-ken Oki 50 km 4.4 39.3 N 142.1 E3 No tsunami alerts
17:03 JST 09 May 2012 Fukushima-ken Nakadori 10 km 3.2 37.1 N 140.3 E2 No tsunami alerts
18:29 JST 09 May 2012 Miyagi-ken Oki 60 km 3.3 38.8 N 141.7 E1 No tsunami alerts
18:44 JST 09 May 2012 Nagano-ken Nambu 10 km 2.5 35.9 N 137.6 E1 No tsunami alerts
18:58 JST 09 May 2012 Yamagata-ken Shonai-chiho 10 km 3.3 38.8 N 139.9 E2 No tsunami alerts
22:49 JST 09 May 2012 Miyagi-ken Oki 50 km 3.3 38.6 N 141.9 E1 No tsunami alerts
00:20 JST 10 May 2012 Kyoto-fu Nambu 10 km 3.5 35.0 N 135.6 E3 No tsunami alerts
06:49 JST 10 May 2012 Ibaraki-ken Hokubu 20 km 3.5 36.8 N 140.6 E1 No tsunami alerts
07:02 JST 10 May 2012 Ibaraki-ken Hokubu 20 km 4.0 36.8 N 140.6 E2 No tsunami alerts
08:13 JST 10 May 2012 Yamagata-ken Okitama-chiho 10 km 3.4 37.8 N 140.0 E1 No tsunami alerts
09:28 JST 10 May 2012 Iwate-ken Oki 20 km 5.2 39.8 N 142.3 E3 No tsunami alerts
11:00 JST 10 May 2012 Niijima-Kozushima Kinkai 10 km 3.3 34.0 N 138.8 E1 No tsunami alerts
11:44 JST 10 May 2012 Niigata-ken Chuetsu-chiho very shallow 1.8 37.0 N 138.7 E1 No tsunami alerts
15:01 JST 10 May 2012 Kushiro Oki 50 km 4.3 42.9 N 144.5 E3 No tsunami alerts
15:41 JST 10 May 2012 Iwate-ken Oki 20 km 4.5 39.7 N 142.3 E2 No tsunami alerts
17:31 JST 10 May 2012 Yamagata-ken Okitama-chiho 20 km 3.4 37.8 N 140.0 E2 No tsunami alerts
17:34 JST 10 May 2012 Fukushima-ken Oki 20 km 4.4 36.9 N 141.5 E2 No tsunami alerts
18:43 JST 10 May 2012 Chiba-ken Toho-oki 10 km 4.4 35.8 N 141.0 E2 No tsunami alerts
09:15 JST 11 May 2012 Iwate-ken Oki 50 km 4.0 39.0 N 142.2 E2 No tsunami alerts
11:55 JST 11 May 2012 Miyagi-ken Oki 60 km 3.3 38.4 N 142.0 E1 No tsunami alerts
12:40 JST 11 May 2012 Fukushima-ken Oki 20 km 4.3 37.4 N 141.9 E1 No tsunami alerts
16:22 JST 11 May 2012 Ibaraki-ken Hokubu 10 km 2.7 36.7 N 140.7 E1 No tsunami alerts
23:18 JST 11 May 2012 Chiba-ken Toho-oki 10 km 3.7 35.8 N 141.0 E2 No tsunami alerts
00:45 JST 12 May 2012 Ibaraki-ken Hokubu 10 km 3.2 36.8 N 140.6 E1 No tsunami alerts
01:36 JST 12 May 2012 Miyagi-ken Oki 60 km 3.8 38.6 N 141.7 E2 No tsunami alerts
02:59 JST 12 May 2012 Fukushima-ken Oki 50 km 4.0 37.2 N 141.4 EUnknNo tsunami alerts
05:35 JST 12 May 2012 Torishima Kinkai 400 km 5.4 30.7 N 139.1 E1 No tsunami alerts
10:28 JST 12 May 2012 Ishikawa-ken Noto-chiho 10 km 2.7 37.5 N 137.2 E1 No tsunami alerts
13:22 JST 12 May 2012 Ibaraki-ken Hokubu 10 km 2.7 36.7 N 140.7 E1 No tsunami alerts
14:17 JST 12 May 2012 Yamanashi-ken Tobu-Fujigoko 20 km 3.0 35.5 N 139.0 E1 No tsunami alerts
15:03 JST 12 May 2012 Miyagi-ken Oki 60 km 3.9 38.4 N 141.9 E2 No tsunami alerts
20:32 JST 12 May 2012 Fukushima-ken Hamadori very shallow 3.8 37.2 N 140.9 E2 No tsunami alerts
23:59 JST 12 May 2012 Chiba-ken Toho-oki 10 km 3.7 35.8 N 141.0 E2 No tsunami alerts
02:14 JST 13 May 2012 Miyagi-ken Oki 50 km 3.4 38.8 N 142.0 E1 No tsunami alerts
02:31 JST 13 May 2012 Miyagi-ken Oki 60 km 3.2 38.8 N 142.0 E1 No tsunami alerts
03:39 JST 13 May 2012 Ibaraki-ken Hokubu 20 km 3.2 36.8 N 140.6 E1 No tsunami alerts
07:08 JST 13 May 2012 Miyagi-ken Oki 60 km 4.0 38.7 N 141.9 E3 No tsunami alerts
11:21 JST 13 May 2012 Tanegashima Kinkai 10 km 2.9 30.7 N 131.1 E1 No tsunami alerts
11:49 JST 13 May 2012 Tochigi-ken Hokubu 10 km 2.2 36.9 N 139.5 E1 No tsunami alerts
12:05 JST 13 May 2012 Fukushima-ken Oki 60 km 4.3 37.4 N 141.3 E2 No tsunami alerts
15:54 JST 13 May 2012 Akita-ken Nairiku-nambu 20 km 2.7 39.6 N 140.5 E2 No tsunami alerts
16:08 JST 13 May 2012 Iwate-ken Oki 50 km 3.2 39.1 N 142.1 E1 No tsunami alerts
18:02 JST 13 May 2012 Ibaraki-ken Oki 20 km 3.4 36.8 N 141.3 E1 No tsunami alerts
21:43 JST 13 May 2012 Fukushima-ken Oki 40 km 3.9 37.5 N 141.8 E1 No tsunami alerts
22:34 JST 13 May 2012 Fukushima-ken Hamadori 20 km 3.4 37.1 N 140.7 E1 No tsunami alerts
04:06 JST 14 May 2012 Kumamoto-ken Kumamoto-chiho 20 km 2.5 32.9 N 130.8 E1 No tsunami alerts
04:18 JST 14 May 2012 Amami-oshima Kinkai 30 km 3.7 28.7 N 129.8 E1 No tsunami alerts
05:21 JST 14 May 2012 Nagano-ken Hokubu very shallow 3.0 36.5 N 137.8 E3 No tsunami alerts
08:17 JST 14 May 2012 Chiba-ken Nambu 20 km 4.3 35.3 N 140.4 E3 No tsunami alerts
12:36 JST 14 May 2012 Hyuga-nada 20 km 4.7 31.7 N 131.9 E3 No tsunami alerts
16:27 JST 14 May 2012 Kumamoto-ken Kumamoto-chiho 20 km 2.5 32.9 N 130.8 E1 No tsunami alerts
17:06 JST 14 May 2012 Nagano-ken Hokubu very shallow 1.8 36.6 N 137.8 E1 No tsunami alerts
04:19 JST 15 May 2012 Ibaraki-ken Oki 30 km 4.3 36.8 N 141.3 E2 No tsunami alerts
06:21 JST 15 May 2012 Miyakojima Kinkai 30 km 4.2 24.5 N 125.2 E2 No tsunami alerts
09:09 JST 15 May 2012 Iwate-ken Oki 50 km 4.2 39.6 N 142.1 E2 No tsunami alerts
09:12 JST 15 May 2012 Iwate-ken Oki 50 km 3.6 39.6 N 142.1 E1 No tsunami alerts
10:12 JST 15 May 2012 Rumoi-chiho Chuhokubu very shallow 2.1 44.1 N 141.8 E2 No tsunami alerts
22:15 JST 15 May 2012 Fukushima-ken Oki 30 km 3.9 37.1 N 141.5 E1 No tsunami alerts
23:42 JST 15 May 2012 Miyagi-ken Oki 50 km 3.4 38.5 N 141.7 E1 No tsunami alerts
01:00 JST 16 May 2012 Miyagi-ken Oki 60 km 5.0 38.3 N 141.9 E4 No tsunami alerts
01:00 JST 16 May 2012 Miyagi-ken Oki 60 km 5.0 38.3 N 141.9 E4 Intensity correction
01:48 JST 16 May 2012 Ibaraki-ken Oki 10 km 4.0 36.6 N 141.0 E1 No tsunami alerts
07:03 JST 16 May 2012 Fukushima-ken Oki 40 km 3.8 37.5 N 141.8 E1 No tsunami alerts
11:06 JST 16 May 2012 Aomori-ken Tsugaru-hokubu 10 km 2.9 40.7 N 140.5 E1 No tsunami alerts
00:59 JST 17 May 2012 Aomori-ken Tsugaru-hokubu 10 km 3.7 40.7 N 140.5 E3 No tsunami alerts
01:40 JST 17 May 2012 Wakayama-ken Hokubu 10 km 2.8 34.0 N 135.2 E1 No tsunami alerts
14:01 JST 17 May 2012 Ibaraki-ken Hokubu 10 km 2.8 36.7 N 140.7 E1 No tsunami alerts
15:51 JST 17 May 2012 Sanriku Oki 10 km 4.4 39.3 N 143.1 E1 No tsunami alerts
18:12 JST 17 May 2012 Ibaraki-ken Nambu 90 km 3.5 36.1 N 139.8 E1 No tsunami alerts
18:44 JST 17 May 2012 Ibaraki-ken Oki 30 km 3.6 36.6 N 141.2 E1 No tsunami alerts
18:59 JST 17 May 2012 Ibaraki-ken Hokubu 10 km 3.0 36.7 N 140.7 E1 No tsunami alerts
21:52 JST 17 May 2012 Ibaraki-ken Hokubu 10 km 2.1 36.6 N 140.6 E1 No tsunami alerts
03:43 JST 18 May 2012 Chiba-ken Toho-oki very shallow 3.0 35.8 N 140.9 E1 No tsunami alerts
10:12 JST 18 May 2012 Miyagi-ken Oki 40 km 3.5 38.3 N 142.1 E1 No tsunami alerts
10:23 JST 18 May 2012 Miyagi-ken Oki 70 km 3.8 38.9 N 141.7 E2 No tsunami alerts
11:32 JST 18 May 2012 Miyagi-ken Oki 50 km 4.0 38.0 N 141.9 E1 No tsunami alerts
17:19 JST 18 May 2012 Ibaraki-ken Nambu 50 km 4.8 36.2 N 139.9 E4 No tsunami alerts
17:19 JST 18 May 2012 Ibaraki-ken Nambu 50 km 4.8 36.2 N 139.9 E4 Intensity correction
20:21 JST 18 May 2012 Ibaraki-ken Oki 60 km 4.4 35.9 N 140.8 E2 No tsunami alerts
23:36 JST 18 May 2012 Nagano-ken Nambu 10 km 3.2 35.9 N 138.1 E2 No tsunami alerts
00:46 JST 19 May 2012 Miyagi-ken Oki 50 km 3.9 38.4 N 141.8 E1 No tsunami alerts
03:38 JST 19 May 2012 Iwate-ken Oki 30 km 3.7 39.1 N 142.5 E1 No tsunami alerts
06:23 JST 19 May 2012 Sanriku Oki 10 km 5.1 39.6 N 143.6 E2 No tsunami alerts
06:32 JST 19 May 2012 Sanriku Oki 10 km 4.7 39.5 N 143.6 E1 No tsunami alerts
06:57 JST 19 May 2012 Ibaraki-ken Nambu 50 km 3.1 36.2 N 139.8 E1 No tsunami alerts
07:36 JST 19 May 2012 Miyagi-ken Oki 60 km 3.4 38.4 N 141.9 E1 No tsunami alerts
09:09 JST 19 May 2012 Sanriku Oki 10 km 4.8 39.6 N 143.7 E1 No tsunami alerts
23:20 JST 19 May 2012 Miyagi-ken Oki 40 km 3.9 38.4 N 142.2 E1 No tsunami alerts
23:22 JST 19 May 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.7 E1 No tsunami alerts
01:18 JST 20 May 2012 Aki-nada 40 km 3.3 33.9 N 132.6 E1 No tsunami alerts
03:31 JST 20 May 2012 Akita-ken Nairiku-hokubu 10 km 2.8 40.1 N 140.4 E1 No tsunami alerts
04:05 JST 20 May 2012 Sanriku Oki 10 km 5.8 39.6 N 143.7 E3 No tsunami alerts
04:14 JST 20 May 2012 Sanriku Oki 10 km 5.4 39.6 N 143.9 E1 No tsunami alerts
04:17 JST 20 May 2012 Sanriku Oki 10 km 4.8 39.8 N 143.9 E1 No tsunami alerts
12:49 JST 20 May 2012 Niigata-ken Chuetsu-chiho 10 km 1.8 37.3 N 138.9 E1 No tsunami alerts
14:52 JST 20 May 2012 Fukushima-ken Oki 90 km 3.6 37.1 N 141.1 E1 No tsunami alerts
16:20 JST 20 May 2012 Sanriku Oki 10 km 6.2 39.5 N 143.8 E3  
16:20 JST 20 May 2012 Sanriku Oki 10 km 6.2 39.5 N 143.8 E3 Intensity correction
16:28 JST 20 May 2012 Sanriku Oki 10 km 5.7 39.5 N 144.0 E2 No tsunami alerts
16:49 JST 20 May 2012 Ibaraki-ken Hokubu 20 km 3.3 36.8 N 140.6 E1 No tsunami alerts
17:21 JST 20 May 2012 Sanriku Oki 10 km 5.4 39.6 N 143.7 E2 No tsunami alerts
17:42 JST 20 May 2012 Sanriku Oki 10 km 5.1 39.4 N 143.6 E2 No tsunami alerts
22:01 JST 20 May 2012 Ibaraki-ken Nambu 70 km 3.8 36.1 N 140.1 E2 No tsunami alerts
07:21 JST 21 May 2012 Sanriku Oki 10 km 5.0 39.6 N 143.9 E1 No tsunami alerts
09:46 JST 21 May 2012 Sanriku Oki 10 km 5.1 39.4 N 144.0 E2 No tsunami alerts
12:19 JST 21 May 2012 Okinawa-honto Hokusei-oki 90 km 5.0 27.2 N 127.5 E3 No tsunami alerts
12:21 JST 21 May 2012 Ibaraki-ken Oki 40 km 3.8 36.5 N 141.1 E1 No tsunami alerts
17:39 JST 21 May 2012 Iwate-ken Engan-hokubu 70 km 3.3 39.4 N 141.9 E1 No tsunami alerts
19:17 JST 21 May 2012 Sanriku Oki 10 km 5.0 39.3 N 143.6 E2 No tsunami alerts
21:46 JST 21 May 2012 Aomori-ken Toho-oki 50 km 3.0 40.8 N 142.2 E1 No tsunami alerts
22:47 JST 21 May 2012 Iwate-ken Oki 30 km 4.1 39.1 N 142.4 E1 No tsunami alerts
07:21 JST 22 May 2012 Chiba-ken Hokuseibu 80 km 3.4 35.7 N 140.2 E1 No tsunami alerts
11:41 JST 22 May 2012 Ibaraki-ken Hokubu 10 km 3.0 36.7 N 140.6 E1 No tsunami alerts
16:18 JST 22 May 2012 Sanriku Oki 10 km 4.9 39.6 N 143.7 E2 No tsunami alerts
20:21 JST 22 May 2012 Miyagi-ken Oki 60 km 3.5 38.4 N 141.9 E1 No tsunami alerts
22:46 JST 22 May 2012 Nemuro-hanto Nanto-oki 40 km 3.2 43.0 N 145.9 E1 No tsunami alerts
02:01 JST 23 May 2012 Miyagi-ken Oki 40 km 3.3 38.6 N 142.0 E1 No tsunami alerts
03:27 JST 23 May 2012 Miyagi-ken Oki 60 km 2.8 38.6 N 141.7 E1 No tsunami alerts
03:45 JST 23 May 2012 Osumi-hanto Toho-oki 30 km 4.0 31.2 N 131.3 E2 No tsunami alerts
07:42 JST 23 May 2012 Ibaraki-ken Oki 40 km 3.8 36.5 N 141.1 E1 No tsunami alerts
00:02 JST 24 May 2012 Aomori-ken Toho-oki 50 km 6.0 41.3 N 142.1 EUnknNo tsunami alerts
02:19 JST 24 May 2012 Ibaraki-ken Nambu 70 km 3.0 36.0 N 140.1 E1 No tsunami alerts
09:11 JST 24 May 2012 Miyagi-ken Oki 90 km 3.5 38.3 N 141.1 E1 No tsunami alerts
10:09 JST 24 May 2012 Chiba-ken Hokutobu 40 km 3.8 35.7 N 140.7 E2 No tsunami alerts
10:15 JST 24 May 2012 Chiba-ken Hokutobu 50 km 3.4 35.7 N 140.7 E2 No tsunami alerts
13:24 JST 24 May 2012 Miyakojima Kinkai 30 km 3.4 24.7 N 125.1 E1 No tsunami alerts
13:52 JST 24 May 2012 Miyagi-ken Oki 60 km 3.9 38.5 N 141.6 E2 No tsunami alerts
15:43 JST 24 May 2012 Fukushima-ken Hamadori 10 km 3.9 37.0 N 140.9 E2 No tsunami alerts
21:35 JST 24 May 2012 Gifu-ken Hida-chiho 10 km 2.4 35.9 N 137.3 E1 No tsunami alerts
23:54 JST 24 May 2012 Nemuro-hanto Nanto-oki 50 km 3.3 43.1 N 145.8 E1 No tsunami alerts
01:03 JST 25 May 2012 Tochigi-ken Hokubu very shallow 2.7 36.9 N 139.4 E1 No tsunami alerts
04:43 JST 25 May 2012 Iyo-nada 70 km 4.1 33.5 N 132.0 E2 No tsunami alerts
08:19 JST 25 May 2012 Aomori-ken Toho-oki 50 km 3.4 40.8 N 142.2 E1 No tsunami alerts
12:59 JST 25 May 2012 Fukushima-ken Oki 50 km 4.3 37.6 N 141.8 E2 No tsunami alerts
16:27 JST 25 May 2012 Tokyo-to Nijusan-ku 50 km 3.6 35.7 N 139.9 E2 No tsunami alerts
00:15 JST 26 May 2012 Akita-ken Nairiku-nambu 10 km 2.0 39.6 N 140.4 E1 No tsunami alerts
05:47 JST 26 May 2012 Fukushima-ken Hamadori 20 km 3.1 36.9 N 140.8 E1 No tsunami alerts
10:18 JST 26 May 2012 Ibaraki-ken Oki 30 km 3.7 36.8 N 141.2 E1 No tsunami alerts
13:03 JST 26 May 2012 Iwate-ken Oki 30 km 4.0 39.1 N 142.4 E2 No tsunami alerts
17:36 JST 26 May 2012 Chiba-ken Toho-oki 20 km 3.6 35.7 N 140.9 E2 No tsunami alerts
21:35 JST 26 May 2012 Ibaraki-ken Nambu 50 km 3.8 36.3 N 140.1 E2 No tsunami alerts
01:45 JST 27 May 2012 Oita-ken Chubu 10 km 2.9 33.3 N 131.5 E2 No tsunami alerts
01:50 JST 27 May 2012 Amami-oshima Kinkai 50 km 3.1 28.0 N 129.5 E1 No tsunami alerts
02:46 JST 27 May 2012 Oita-ken Chubu 10 km 2.0 33.3 N 131.5 E1 No tsunami alerts
06:49 JST 27 May 2012 Chichijima Kinkai 490 km 6.1 27.2 N 141.1 E2 No tsunami alerts
10:09 JST 27 May 2012 Miyagi-ken Oki 60 km 3.3 38.4 N 142.0 E1 No tsunami alerts
11:43 JST 27 May 2012 Ibaraki-ken Oki 30 km 3.4 36.7 N 141.1 E1 No tsunami alerts
13:22 JST 27 May 2012 Miyagi-ken Oki 30 km 3.7 38.4 N 142.2 E1 No tsunami alerts
19:09 JST 27 May 2012 Miyagi-ken Oki 30 km 4.3 38.5 N 142.3 E1 No tsunami alerts
20:20 JST 27 May 2012 Yonagunijima Kinkai 10 km 5.1 24.8 N 123.2 E2 No tsunami alerts
03:08 JST 28 May 2012 Miyagi-ken Oki 40 km 3.3 38.8 N 142.1 E1 No tsunami alerts
13:17 JST 28 May 2012 Chiba-ken Toho-oki 10 km 3.3 35.8 N 141.0 E1 No tsunami alerts
14:24 JST 28 May 2012 Fukushima-ken Aizu 10 km 1.5 37.4 N 139.7 E1 No tsunami alerts
15:32 JST 28 May 2012 Ishikawa-ken Noto-chiho 20 km 4.1 37.4 N 137.0 E3 No tsunami alerts
21:39 JST 28 May 2012 Miyagi-ken Oki 60 km 2.6 38.6 N 141.7 E1 No tsunami alerts
01:36 JST 29 May 2012 Chiba-ken Hokuseibu 80 km 5.2 35.8 N 140.1 E4 No tsunami alerts
01:36 JST 29 May 2012 Chiba-ken Hokuseibu 80 km 5.2 35.8 N 140.1 E4 Intensity correction
02:19 JST 29 May 2012 Chiba-ken Hokuseibu 80 km 3.6 35.8 N 140.2 E1 No tsunami alerts
06:37 JST 29 May 2012 Rumoi-chiho Chuhokubu 10 km 1.9 44.1 N 141.8 E2 No tsunami alerts
10:48 JST 29 May 2012 Fukushima-ken Oki 30 km 3.1 37.2 N 141.2 E1 No tsunami alerts
10:56 JST 29 May 2012 Sanriku Oki 10 km 4.7 39.3 N 144.5 E1 No tsunami alerts
14:49 JST 29 May 2012 Chiba-ken Toho-oki 10 km 3.3 35.7 N 140.9 E1 No tsunami alerts
15:38 JST 29 May 2012 Chiba-ken Toho-oki 10 km 3.3 35.7 N 141.1 E1 No tsunami alerts
18:18 JST 29 May 2012 Niigata-ken Chuetsu-chiho 10 km 2.7 37.3 N 139.0 E1 No tsunami alerts
19:06 JST 29 May 2012 Ibaraki-ken Hokubu very shallow 3.0 36.7 N 140.7 E2 No tsunami alerts
21:02 JST 29 May 2012 Chiba-ken Toho-oki 20 km 3.6 35.7 N 141.0 E1 No tsunami alerts
21:11 JST 29 May 2012 Miyagi-ken Oki 40 km 3.7 38.4 N 142.1 E1 No tsunami alerts
00:53 JST 30 May 2012 Tokachi-chiho Nambu 60 km 4.1 42.4 N 143.1 E2 No tsunami alerts
08:05 JST 30 May 2012 Miyagi-ken Oki 40 km 3.2 38.8 N 142.0 E1 No tsunami alerts
01:31 JST 31 May 2012 Miyagi-ken Oki 50 km 3.8 38.9 N 142.1 E2 No tsunami alerts
07:06 JST 31 May 2012 Miyagi-ken Oki 30 km 3.5 38.4 N 142.2 E1 No tsunami alerts
07:27 JST 31 May 2012 Akita-ken Oki 20 km 4.0 40.2 N 139.8 E2 No tsunami alerts
12:11 JST 31 May 2012 Iwate-ken Oki 40 km 3.8 39.1 N 142.3 E1 No tsunami alerts
14:49 JST 31 May 2012 Fukushima-ken Oki 50 km 4.5 37.5 N 141.5 E3 No tsunami alerts
16:04 JST 31 May 2012 Iwate-ken Nairiku-nambu 10 km 3.3 39.0 N 140.9 E1 No tsunami alerts
20:11 JST 31 May 2012 Niigata-ken Chuetsu-chiho 10 km 2.6 37.3 N 139.0 E1 No tsunami alerts
21:08 JST 31 May 2012 Kyoto-fu Nambu 10 km 2.7 35.0 N 135.5 E1 No tsunami alerts
23:08 JST 31 May 2012 Kii-suido 50 km 3.7 33.8 N 135.1 E1 No tsunami alerts
23:34 JST 31 May 2012 Miyakojima Kinkai 40 km 3.8 24.3 N 125.2 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