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Quake Time Epicenter Latitude Longitude Depth Magnitude Intensity Remarks
03:51 JST 01 Feb 2012 Ibaraki-ken Oki 30 km 2.8 36.7 N 141.0 E1 No tsunami alerts
04:30 JST 01 Feb 2012 Miyagi-ken Oki 50 km 3.5 38.4 N 141.9 E1 No tsunami alerts
04:35 JST 01 Feb 2012 Fukushima-ken Oki 30 km 4.2 37.2 N 141.7 E2 No tsunami alerts
05:23 JST 01 Feb 2012 Fukushima-ken Oki 40 km 3.9 37.5 N 141.6 E2 No tsunami alerts
06:30 JST 01 Feb 2012 Hidaka-chiho Chubu very shallow 2.3 42.3 N 142.5 E2 No tsunami alerts
10:55 JST 01 Feb 2012 Niijima-Kozushima Kinkai 10 km 3.9 33.9 N 138.8 E1 No tsunami alerts
13:59 JST 01 Feb 2012 Ibaraki-ken Nambu 50 km 3.1 36.2 N 140.0 E1 No tsunami alerts
14:17 JST 01 Feb 2012 Nemuro-hanto Nanto-oki 50 km 3.7 43.3 N 146.5 E1 No tsunami alerts
16:48 JST 01 Feb 2012 Yamagata-ken Okitama-chiho 10 km 3.2 37.8 N 140.0 E1 No tsunami alerts
17:22 JST 01 Feb 2012 Tokyo-to Tama-tobu 30 km 2.3 35.7 N 139.5 E1 No tsunami alerts
20:57 JST 01 Feb 2012 Wakayama-ken Hokubu very shallow 2.4 34.0 N 135.3 E1 No tsunami alerts
21:37 JST 01 Feb 2012 Ishikawa-ken Noto-chiho 10 km 2.8 37.5 N 137.3 E1 No tsunami alerts
22:48 JST 01 Feb 2012 Akita-ken Oki 20 km 3.6 39.2 N 139.8 E2 No tsunami alerts
23:09 JST 01 Feb 2012 Iwate-ken Oki 50 km 3.9 39.2 N 142.2 E1 No tsunami alerts
02:01 JST 02 Feb 2012 Ibaraki-ken Hokubu 60 km 3.9 36.5 N 140.6 E2 No tsunami alerts
08:06 JST 02 Feb 2012 Shimane-ken Tobu 10 km 2.2 35.3 N 133.3 E1 No tsunami alerts
10:45 JST 02 Feb 2012 Nagano-ken Nambu 10 km 2.6 36.0 N 137.6 E1 No tsunami alerts
19:34 JST 02 Feb 2012 Chiba-ken Toho-oki 30 km 3.3 35.8 N 141.1 E1 No tsunami alerts
21:25 JST 02 Feb 2012 Miyagi-ken Oki 60 km 4.1 38.4 N 141.8 E2 No tsunami alerts
21:29 JST 02 Feb 2012 Hokkaido Toho-oki 40 km 4.2 43.3 N 147.0 E1 No tsunami alerts
22:06 JST 02 Feb 2012 Fukushima-ken Hamadori 10 km 2.7 37.1 N 140.8 E1 No tsunami alerts
05:16 JST 03 Feb 2012 Kumamoto-ken Kumamoto-chiho 10 km 3.0 32.9 N 130.8 E2 No tsunami alerts
09:32 JST 03 Feb 2012 Ibaraki-ken Hokubu 60 km 3.1 36.4 N 140.6 E1 No tsunami alerts
10:57 JST 03 Feb 2012 Yamanashi-ken Tobu-Fujigoko 20 km 2.4 35.5 N 139.0 E1 No tsunami alerts
13:44 JST 03 Feb 2012 Miyagi-ken Oki 50 km 3.4 38.5 N 141.8 E1 No tsunami alerts
15:03 JST 03 Feb 2012 Fukushima-ken Nakadori 20 km 3.0 37.1 N 140.5 E2 No tsunami alerts
17:41 JST 03 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.1 39.6 N 140.4 E1 No tsunami alerts
18:52 JST 03 Feb 2012 Iwate-ken Oki 40 km 3.8 40.3 N 142.3 E1 No tsunami alerts
18:59 JST 03 Feb 2012 Miyagi-ken Oki 50 km 4.5 38.4 N 142.2 E2 No tsunami alerts
21:44 JST 03 Feb 2012 Okinawa-honto Kinkai 70 km 4.1 26.2 N 126.4 E1 No tsunami alerts
22:48 JST 03 Feb 2012 Urakawa Oki 10 km 2.1 42.2 N 142.5 E1 No tsunami alerts
02:36 JST 04 Feb 2012 Iwate-ken Oki 40 km 4.0 39.1 N 142.4 E1 No tsunami alerts
06:02 JST 04 Feb 2012 Fukushima-ken Oki 40 km 4.0 36.9 N 141.5 E1 No tsunami alerts
06:51 JST 04 Feb 2012 Iwate-ken Oki 50 km 3.9 39.6 N 142.1 E2 No tsunami alerts
08:32 JST 04 Feb 2012 Iwate-ken Oki 50 km 3.9 39.6 N 142.1 E2 No tsunami alerts
08:41 JST 04 Feb 2012 Miyagi-ken Oki 50 km 3.9 38.9 N 142.0 E2 No tsunami alerts
10:16 JST 04 Feb 2012 Kyoto-fu Nambu very shallow 2.7 35.3 N 135.8 E1 No tsunami alerts
11:54 JST 04 Feb 2012 Yonagunijima Kinkai 110 km 4.9 24.7 N 122.7 E2 No tsunami alerts
14:56 JST 04 Feb 2012 Fukushima-ken Oki 40 km 4.3 37.3 N 141.8 E1 No tsunami alerts
16:21 JST 04 Feb 2012 Miyagi-ken Oki 60 km 3.9 38.2 N 141.9 E1 No tsunami alerts
17:01 JST 04 Feb 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.6 E2 No tsunami alerts
17:30 JST 04 Feb 2012 Gifu-ken Hida-chiho very shallow 2.7 36.2 N 137.2 E1 No tsunami alerts
19:21 JST 04 Feb 2012 Ibaraki-ken Nambu 70 km 3.9 36.3 N 140.1 E2 No tsunami alerts
20:29 JST 04 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.2 39.6 N 140.5 E1 No tsunami alerts
02:13 JST 05 Feb 2012 Miyagi-ken Oki 70 km 3.3 38.4 N 141.6 E1 No tsunami alerts
03:03 JST 05 Feb 2012 Iwate-ken Oki 30 km 4.2 40.2 N 142.5 E2 No tsunami alerts
04:45 JST 05 Feb 2012 Fukushima-ken Oki 30 km 3.8 37.4 N 141.3 E2 No tsunami alerts
07:19 JST 05 Feb 2012 Fukushima-ken Hamadori 10 km 3.0 37.1 N 140.7 E1 No tsunami alerts
07:54 JST 05 Feb 2012 Fukushima-ken Hamadori 10 km 3.1 37.0 N 140.7 E1 No tsunami alerts
08:01 JST 05 Feb 2012 Miyagi-ken Oki 50 km 4.3 38.3 N 142.2 E2 No tsunami alerts
08:26 JST 05 Feb 2012 Yamanashi-ken Tobu-Fujigoko 20 km 2.7 35.5 N 139.0 E1 No tsunami alerts
08:59 JST 05 Feb 2012 Ibaraki-ken Oki 40 km 4.3 36.2 N 141.0 EUnknNo tsunami alerts
09:11 JST 05 Feb 2012 Ibaraki-ken Nambu 60 km 3.2 36.3 N 140.1 E1 No tsunami alerts
09:38 JST 05 Feb 2012 Chiba-ken Toho-oki 50 km 4.1 35.7 N 140.8 E2 No tsunami alerts
10:35 JST 05 Feb 2012 Miyagi-ken Oki 40 km 3.6 38.4 N 142.2 E1 No tsunami alerts
16:45 JST 05 Feb 2012 Miyagi-ken Oki 40 km 4.0 38.4 N 142.3 E1 No tsunami alerts
21:45 JST 05 Feb 2012 Miyagi-ken Oki 50 km 3.9 38.6 N 141.9 E2 No tsunami alerts
23:17 JST 05 Feb 2012 Miyagi-ken Oki 40 km 4.3 38.5 N 142.3 E1 No tsunami alerts
07:05 JST 06 Feb 2012 Ibaraki-ken Oki very shallow 5.0 36.5 N 141.0 EUnknNo tsunami alerts
12:22 JST 06 Feb 2012 Kushiro Oki 50 km 3.9 42.9 N 144.7 E2 No tsunami alerts
14:31 JST 06 Feb 2012 Ibaraki-ken Oki 30 km 4.0 36.4 N 141.1 E2 No tsunami alerts
20:04 JST 06 Feb 2012 Fukushima-ken Oki 50 km 3.7 37.0 N 141.2 E1 No tsunami alerts
01:06 JST 07 Feb 2012 Iwate-ken Nairiku-nambu 130 km 3.6 39.3 N 141.1 E2 No tsunami alerts
03:44 JST 07 Feb 2012 Ibaraki-ken Oki 20 km 3.8 36.6 N 141.2 E1 No tsunami alerts
04:19 JST 07 Feb 2012 Chiba-ken Toho-oki 20 km 3.8 35.8 N 141.0 E2 No tsunami alerts
06:23 JST 07 Feb 2012 Miyagi-ken Oki 40 km 4.1 38.4 N 142.3 E1 No tsunami alerts
07:39 JST 07 Feb 2012 Fukushima-ken Oki 30 km 4.2 37.6 N 141.9 E2 No tsunami alerts
08:10 JST 07 Feb 2012 Tokyo-to Tama-tobu 40 km 4.0 35.6 N 139.4 E2 No tsunami alerts
20:10 JST 07 Feb 2012 Ibaraki-ken Hokubu 10 km 3.2 36.7 N 140.7 E1 No tsunami alerts
22:30 JST 07 Feb 2012 Soya Toho-oki 310 km 4.9 45.6 N 142.4 E2 No tsunami alerts
22:38 JST 07 Feb 2012 Chiba-ken Hokuseibu 80 km 4.2 35.8 N 140.2 E2 No tsunami alerts
01:00 JST 08 Feb 2012 Shizuoka-ken Seibu 10 km 2.8 35.0 N 137.9 E1 No tsunami alerts
06:41 JST 08 Feb 2012 Ibaraki-ken Oki 10 km 4.1 36.6 N 140.7 EUnknNo tsunami alerts
09:57 JST 08 Feb 2012 Fukushima-ken Aizu 10 km 3.3 37.7 N 140.0 E2 No tsunami alerts
11:54 JST 08 Feb 2012 Chiba-ken Toho-oki 10 km 3.1 35.8 N 140.9 E1 No tsunami alerts
15:21 JST 08 Feb 2012 Fukushima-ken Oki 30 km 3.5 37.4 N 141.3 E1 No tsunami alerts
15:37 JST 08 Feb 2012 Nagano-ken Hokubu 10 km 2.1 36.5 N 137.9 E1 No tsunami alerts
16:12 JST 08 Feb 2012 Nagano-ken Hokubu 10 km 2.2 36.5 N 137.9 E1 No tsunami alerts
17:13 JST 08 Feb 2012 Nagano-ken Hokubu 10 km 2.3 36.5 N 138.0 E1 No tsunami alerts
18:54 JST 08 Feb 2012 Kunashirito Fukin 120 km 3.5 43.5 N 145.5 E1 No tsunami alerts
20:36 JST 08 Feb 2012 Ibaraki-ken Oki 50 km 3.9 36.7 N 141.1 E3 No tsunami alerts
20:38 JST 08 Feb 2012 Fukushima-ken Oki 30 km 3.8 37.7 N 141.9 E1 No tsunami alerts
21:01 JST 08 Feb 2012 Sado Fukin 10 km 5.7 37.9 N 138.2 E5 upper No tsunami alerts
21:01 JST 08 Feb 2012 Sado Fukin 10 km 5.7 37.9 N 138.2 E5 upper Intensity correction
21:22 JST 08 Feb 2012 Sado Fukin 10 km 3.1 37.9 N 138.1 E1 No tsunami alerts
23:09 JST 08 Feb 2012 Miyagi-ken Oki 40 km 3.7 38.5 N 142.2 E1 No tsunami alerts
00:22 JST 09 Feb 2012 Sado Fukin 10 km 3.1 37.9 N 138.2 E1 No tsunami alerts
00:27 JST 09 Feb 2012 Iwate-ken Oki 50 km 3.6 39.1 N 142.1 E1 No tsunami alerts
03:15 JST 09 Feb 2012 Amami-oshima Kinkai 20 km 3.6 28.6 N 129.7 E1 No tsunami alerts
04:22 JST 09 Feb 2012 Aomori-ken Seiho-oki 160 km 4.1 41.2 N 140.3 E1 No tsunami alerts
12:55 JST 09 Feb 2012 Hyuga-nada 20 km 4.6 31.5 N 131.9 E3 No tsunami alerts
12:56 JST 09 Feb 2012 Ibaraki-ken Oki 50 km 3.1 36.6 N 140.9 E1 No tsunami alerts
14:12 JST 09 Feb 2012 Nagano-ken Chubu very shallow 1.9 36.2 N 137.6 E1 No tsunami alerts
14:18 JST 09 Feb 2012 Chiba-ken Toho-oki very shallow 3.6 35.8 N 140.9 E1 No tsunami alerts
15:14 JST 09 Feb 2012 Izu-hanto Toho-oki 10 km 3.9 35.0 N 139.1 E3 No tsunami alerts
16:00 JST 09 Feb 2012 Miyagi-ken Oki 50 km 4.1 38.2 N 141.9 E2 No tsunami alerts
16:09 JST 09 Feb 2012 Fukushima-ken Oki 50 km 4.2 37.1 N 141.5 E2 No tsunami alerts
17:06 JST 09 Feb 2012 Kumamoto-ken Kumamoto-chiho 10 km 2.2 32.8 N 130.8 E1 No tsunami alerts
19:22 JST 09 Feb 2012 Chiba-ken Toho-oki 30 km 3.4 35.5 N 140.5 E2 No tsunami alerts
22:02 JST 09 Feb 2012 Miyagi-ken Oki 50 km 2.8 38.7 N 141.8 E1 No tsunami alerts
23:39 JST 09 Feb 2012 Nagano-ken Hokubu 10 km 2.4 36.5 N 137.9 E1 No tsunami alerts
00:22 JST 10 Feb 2012 Chiba-ken Hokuseibu 80 km 3.4 35.7 N 140.2 E1 No tsunami alerts
01:58 JST 10 Feb 2012 Ibaraki-ken Oki 20 km 3.9 36.8 N 141.3 E2 No tsunami alerts
03:33 JST 10 Feb 2012 Iwate-ken Oki 50 km 3.2 39.6 N 142.1 E1 No tsunami alerts
06:52 JST 10 Feb 2012 Miyagi-ken Chubu 110 km 4.4 38.4 N 140.8 E3 No tsunami alerts
13:35 JST 10 Feb 2012 Ibaraki-ken Oki 40 km 3.2 36.2 N 140.9 E1 No tsunami alerts
13:43 JST 10 Feb 2012 Fukushima-ken Oki 30 km 3.5 37.2 N 141.3 E1 No tsunami alerts
13:56 JST 10 Feb 2012 Akita-ken Nairiku-hokubu 10 km 3.7 40.1 N 140.6 E3 No tsunami alerts
14:10 JST 10 Feb 2012 Ibaraki-ken Hokubu 20 km 3.8 36.8 N 140.6 E2 No tsunami alerts
15:29 JST 10 Feb 2012 Miyagi-ken Oki 40 km 3.5 38.5 N 142.1 E1 No tsunami alerts
17:32 JST 10 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.5 39.6 N 140.4 E1 No tsunami alerts
18:43 JST 10 Feb 2012 Ibaraki-ken Oki 40 km 3.2 36.6 N 141.1 E1 No tsunami alerts
19:56 JST 10 Feb 2012 Hokkaido Hokusei-oki 10 km 2.9 44.5 N 141.7 E1 No tsunami alerts
07:07 JST 11 Feb 2012 Ibaraki-ken Nambu 50 km 3.5 36.1 N 139.9 E2 No tsunami alerts
10:27 JST 11 Feb 2012 Ibaraki-ken Nambu 50 km 4.7 36.1 N 139.8 E3 No tsunami alerts
18:40 JST 11 Feb 2012 Wakayama-ken Hokubu 10 km 3.3 34.0 N 135.3 E1 No tsunami alerts
20:27 JST 11 Feb 2012 Aomori-ken Toho-oki 20 km 3.8 41.2 N 141.7 E2 No tsunami alerts
20:42 JST 11 Feb 2012 Ibaraki-ken Oki 40 km 3.1 36.3 N 141.0 E1 No tsunami alerts
00:58 JST 12 Feb 2012 Chiba-ken Toho-oki 10 km 3.6 35.8 N 140.9 E1 No tsunami alerts
01:22 JST 12 Feb 2012 Ibaraki-ken Oki 10 km 3.5 36.6 N 141.1 E1 No tsunami alerts
03:35 JST 12 Feb 2012 Fukushima-ken Oki 20 km 4.0 37.4 N 141.7 E1 No tsunami alerts
04:56 JST 12 Feb 2012 Miyagi-ken Oki 40 km 4.5 38.7 N 142.2 EUnknNo tsunami alerts
07:38 JST 12 Feb 2012 Miyagi-ken Oki 50 km 3.6 38.3 N 141.9 E1 No tsunami alerts
10:51 JST 12 Feb 2012 Yamanashi-ken Tobu-Fujigoko 20 km 3.4 35.5 N 138.9 E2 No tsunami alerts
11:04 JST 12 Feb 2012 Miyagi-ken Oki 40 km 3.5 38.3 N 142.3 E1 No tsunami alerts
13:41 JST 12 Feb 2012 Sanriku Oki 10 km 5.0 38.6 N 144.1 E2 No tsunami alerts
17:26 JST 12 Feb 2012 Ibaraki-ken Oki 40 km 4.0 36.3 N 141.0 E2 No tsunami alerts
18:15 JST 12 Feb 2012 Ibaraki-ken Hokubu 10 km 3.1 36.7 N 140.6 E1 No tsunami alerts
00:52 JST 13 Feb 2012 Chiba-ken Hokuseibu 80 km 3.4 35.7 N 140.1 E1 No tsunami alerts
05:58 JST 13 Feb 2012 Miyagi-ken Oki 40 km 4.3 38.2 N 142.5 E1 No tsunami alerts
16:21 JST 13 Feb 2012 Fukushima-ken Hamadori 10 km 3.3 37.0 N 140.8 E1 No tsunami alerts
19:03 JST 13 Feb 2012 Iwate-ken Oki 30 km 4.0 39.4 N 142.5 E1 No tsunami alerts
22:11 JST 13 Feb 2012 Okinawa-honto Kinkai 10 km 4.3 26.5 N 128.8 E1 No tsunami alerts
04:06 JST 14 Feb 2012 Urakawa Oki 10 km 2.2 42.2 N 142.6 E1 No tsunami alerts
08:21 JST 14 Feb 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.7 E1 No tsunami alerts
09:56 JST 14 Feb 2012 Chiba-ken Toho-oki 10 km 3.1 35.7 N 141.0 E1 No tsunami alerts
11:49 JST 14 Feb 2012 Fukushima-ken Hamadori 10 km 3.6 37.0 N 140.8 E1 No tsunami alerts
12:28 JST 14 Feb 2012 Ibaraki-ken Oki 20 km 5.5 36.3 N 141.6 E3 No tsunami alerts
12:28 JST 14 Feb 2012 Ibaraki-ken Oki 20 km 5.5 36.3 N 141.6 E3 Intensity correction
13:33 JST 14 Feb 2012 Nagano-ken Hokubu 10 km 2.4 36.5 N 137.9 E1 No tsunami alerts
15:22 JST 14 Feb 2012 Ibaraki-ken Oki very shallow 6.2 36.3 N 141.8 E3  
19:48 JST 14 Feb 2012 Sanriku Oki 10 km 4.7 39.4 N 144.2 E2 No tsunami alerts
20:15 JST 14 Feb 2012 Chiba-ken Toho-oki 10 km 4.1 35.7 N 141.1 E1 No tsunami alerts
21:40 JST 14 Feb 2012 Nagano-ken Hokubu 10 km 3.5 36.5 N 137.9 E4 No tsunami alerts
21:41 JST 14 Feb 2012 Ibaraki-ken Oki 40 km 4.2 36.7 N 141.0 E2 No tsunami alerts
21:47 JST 14 Feb 2012 Nagano-ken Hokubu 10 km 2.1 36.5 N 137.9 E1 No tsunami alerts
21:55 JST 14 Feb 2012 Nagano-ken Hokubu 10 km 2.0 36.5 N 137.9 E1 No tsunami alerts
22:21 JST 14 Feb 2012 Nagano-ken Hokubu 10 km 2.1 36.5 N 137.9 E1 No tsunami alerts
22:56 JST 14 Feb 2012 Fukushima-ken Oki 40 km 3.3 37.3 N 141.5 E1 No tsunami alerts
03:51 JST 15 Feb 2012 Ibaraki-ken Oki 10 km 4.1 35.8 N 141.5 E1 No tsunami alerts
04:15 JST 15 Feb 2012 Chiba-ken Toho-oki 20 km 4.2 35.7 N 141.1 E2 No tsunami alerts
05:00 JST 15 Feb 2012 Iwate-ken Engan-nambu 70 km 3.5 39.0 N 141.7 E1 No tsunami alerts
05:35 JST 15 Feb 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.7 E1 No tsunami alerts
07:34 JST 15 Feb 2012 Ibaraki-ken Oki 20 km 4.9 36.3 N 141.8 E2 No tsunami alerts
11:59 JST 15 Feb 2012 Oshima-chiho Tobu 10 km 3.1 42.1 N 140.5 E2 No tsunami alerts
13:36 JST 15 Feb 2012 Oshima-chiho Tobu 10 km 3.5 42.1 N 140.5 E3 No tsunami alerts
14:55 JST 15 Feb 2012 Oshima-chiho Tobu 10 km 2.5 42.1 N 140.5 E1 No tsunami alerts
15:28 JST 15 Feb 2012 Fukushima-ken Oki 40 km 4.7 37.8 N 141.6 EUnknNo tsunami alerts
21:02 JST 15 Feb 2012 Shizuoka-ken Seibu 10 km 2.6 35.0 N 137.9 E1 No tsunami alerts
02:32 JST 16 Feb 2012 Ibaraki-ken Oki 30 km 4.4 36.2 N 141.1 E3 No tsunami alerts
07:20 JST 16 Feb 2012 Chiba-ken Nanto-oki 70 km 3.2 35.0 N 140.0 E1 No tsunami alerts
10:43 JST 16 Feb 2012 Fukushima-ken Oki 40 km 3.6 37.4 N 141.4 E1 No tsunami alerts
11:58 JST 16 Feb 2012 Suruga-wan very shallow 3.3 34.8 N 138.7 E1 No tsunami alerts
13:50 JST 16 Feb 2012 Hokkaido Nansei-oki 10 km 4.4 42.1 N 138.9 E3 No tsunami alerts
14:09 JST 16 Feb 2012 Miyagi-ken Oki 40 km 4.4 38.5 N 142.1 E3 No tsunami alerts
14:22 JST 16 Feb 2012 Fukushima-ken Oki 50 km 3.6 36.9 N 141.1 E1 No tsunami alerts
00:30 JST 17 Feb 2012 Fukushima-ken Nakadori 20 km 3.1 37.1 N 140.6 E2 No tsunami alerts
02:42 JST 17 Feb 2012 Fukushima-ken Oki 50 km 3.7 37.0 N 141.3 E2 No tsunami alerts
04:29 JST 17 Feb 2012 Fukushima-ken Oki 10 km 2.9 37.3 N 141.1 E1 No tsunami alerts
04:50 JST 17 Feb 2012 Yamagata-ken Okitama-chiho 10 km 3.3 37.8 N 140.0 E1 No tsunami alerts
06:00 JST 17 Feb 2012 Shizuoka-ken Seibu 20 km 3.8 34.9 N 138.0 E2 No tsunami alerts
06:48 JST 17 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.2 39.6 N 140.4 E1 No tsunami alerts
16:14 JST 17 Feb 2012 Ibaraki-ken Hokubu 10 km 2.5 36.7 N 140.6 E1 No tsunami alerts
18:08 JST 17 Feb 2012 Miyagi-ken Oki 60 km 3.4 38.4 N 141.9 E1 No tsunami alerts
19:23 JST 17 Feb 2012 Chiba-ken Toho-oki 10 km 3.1 35.8 N 141.0 E1 No tsunami alerts
19:37 JST 17 Feb 2012 Aichi-ken Tobu 40 km 3.1 35.0 N 137.6 E1 No tsunami alerts
19:55 JST 17 Feb 2012 Fukushima-ken Oki 40 km 3.8 37.5 N 141.9 E1 No tsunami alerts
21:48 JST 17 Feb 2012 Kii-suido 10 km 3.0 34.1 N 135.1 E2 No tsunami alerts
03:10 JST 18 Feb 2012 Ishigakijima Kinkai 40 km 3.9 24.1 N 124.3 E1 No tsunami alerts
06:18 JST 18 Feb 2012 Ibaraki-ken Oki 10 km 3.4 36.5 N 140.7 E2 No tsunami alerts
06:22 JST 18 Feb 2012 Ibaraki-ken Oki 10 km 3.0 36.5 N 140.7 E1 No tsunami alerts
09:38 JST 18 Feb 2012 Chiba-ken Toho-oki 40 km 4.3 35.6 N 141.1 E1 No tsunami alerts
10:59 JST 18 Feb 2012 Urakawa Oki 60 km 4.2 41.9 N 142.5 E2 No tsunami alerts
13:56 JST 18 Feb 2012 Chiba-ken Hokuseibu 10 km 3.8 35.6 N 140.1 E3 No tsunami alerts
14:13 JST 18 Feb 2012 Chiba-ken Hokuseibu 10 km 4.2 35.6 N 140.1 E4 No tsunami alerts
16:07 JST 18 Feb 2012 Miyagi-ken Oki 60 km 4.2 38.7 N 141.7 E2 No tsunami alerts
16:22 JST 18 Feb 2012 Ibaraki-ken Oki 50 km 3.7 36.5 N 141.0 E1 No tsunami alerts
17:44 JST 18 Feb 2012 Kushiro-chiho Chunambu 70 km 3.7 43.2 N 145.3 E1 No tsunami alerts
20:57 JST 18 Feb 2012 Ibaraki-ken Hokubu 10 km 2.7 36.7 N 140.6 E1 No tsunami alerts
22:43 JST 18 Feb 2012 Ibaraki-ken Oki 50 km 3.3 36.6 N 140.9 E1 No tsunami alerts
23:20 JST 18 Feb 2012 Ibaraki-ken Oki 10 km 4.8 36.5 N 141.0 E3 No tsunami alerts
23:20 JST 18 Feb 2012 Ibaraki-ken Oki 10 km 4.8 36.5 N 141.0 E3 Intensity correction
23:35 JST 18 Feb 2012 Shimane-ken Tobu 10 km 3.0 35.2 N 132.7 E1 No tsunami alerts
03:22 JST 19 Feb 2012 Chiba-ken Hokutobu 40 km 2.8 35.9 N 140.5 E1 No tsunami alerts
04:31 JST 19 Feb 2012 Chiba-ken Hokutobu 30 km 2.7 35.6 N 140.4 E1 No tsunami alerts
06:44 JST 19 Feb 2012 Miyagi-ken Oki 50 km 4.4 38.0 N 141.9 E2 No tsunami alerts
09:58 JST 19 Feb 2012 Fukushima-ken Oki 30 km 4.0 37.2 N 141.9 E1 No tsunami alerts
12:11 JST 19 Feb 2012 Miyakojima Kinkai 30 km 3.4 24.6 N 125.2 E1 No tsunami alerts
14:54 JST 19 Feb 2012 Ibaraki-ken Hokubu 10 km 5.1 36.7 N 140.6 E5 lower No tsunami alerts
14:54 JST 19 Feb 2012 Ibaraki-ken Hokubu 10 km 5.1 36.7 N 140.6 E5 lower Intensity correction
21:52 JST 19 Feb 2012 Fukushima-ken Oki 30 km 3.9 37.2 N 141.2 E2 No tsunami alerts
22:12 JST 19 Feb 2012 Ibaraki-ken Hokubu 10 km 3.9 36.7 N 140.7 E2 No tsunami alerts
22:29 JST 19 Feb 2012 Ibaraki-ken Hokubu 20 km 3.5 36.8 N 140.6 E1 No tsunami alerts
23:18 JST 19 Feb 2012 Ibaraki-ken Hokubu 10 km 3.0 36.7 N 140.7 E1 No tsunami alerts
02:27 JST 20 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.2 39.5 N 140.4 E1 No tsunami alerts
05:42 JST 20 Feb 2012 Ibaraki-ken Hokubu 10 km 2.5 36.7 N 140.7 E1 No tsunami alerts
06:55 JST 20 Feb 2012 Akita-ken Nairiku-nambu 10 km 2.6 39.5 N 140.4 E2 No tsunami alerts
10:42 JST 20 Feb 2012 Amami-oshima Kinkai 50 km 3.4 28.6 N 129.5 E1 No tsunami alerts
11:18 JST 20 Feb 2012 Hachijojima Kinkai very shallow 1.7 33.1 N 139.8 E1 No tsunami alerts
13:20 JST 20 Feb 2012 Aki-nada 50 km 3.2 33.9 N 132.4 E1 No tsunami alerts
13:28 JST 20 Feb 2012 Ibaraki-ken Hokubu 10 km 3.4 36.7 N 140.7 E3 No tsunami alerts
13:29 JST 20 Feb 2012 Amami-oshima Kinkai 40 km 3.3 28.0 N 129.4 E1 No tsunami alerts
18:37 JST 20 Feb 2012 Chiba-ken Toho-oki 60 km 3.5 35.4 N 140.4 E1 No tsunami alerts
21:16 JST 20 Feb 2012 Yamagata-ken Okitama-chiho 10 km 3.1 37.8 N 140.0 E1 No tsunami alerts
21:21 JST 20 Feb 2012 Yamagata-ken Okitama-chiho 10 km 3.2 37.8 N 140.0 E1 No tsunami alerts
21:40 JST 20 Feb 2012 Ibaraki-ken Hokubu 20 km 3.4 36.8 N 140.7 E2 No tsunami alerts
22:43 JST 20 Feb 2012 Fukushima-ken Oki 30 km 3.7 37.1 N 141.3 E2 No tsunami alerts
23:40 JST 20 Feb 2012 Chiba-ken Nanto-oki 70 km 3.5 35.0 N 140.0 E1 No tsunami alerts
04:16 JST 21 Feb 2012 Miyagi-ken Oki 40 km 4.1 38.8 N 142.4 E2 No tsunami alerts
07:37 JST 21 Feb 2012 Ibaraki-ken Hokubu 20 km 3.8 36.8 N 140.6 E2 No tsunami alerts
09:34 JST 21 Feb 2012 Chiba-ken Hokutobu 40 km 3.4 35.9 N 140.6 E2 No tsunami alerts
10:22 JST 21 Feb 2012 Kyoto-fu Nambu 10 km 3.4 35.3 N 135.8 E2 No tsunami alerts
20:14 JST 21 Feb 2012 Mutsu-wan 110 km 3.7 41.1 N 141.0 E1 No tsunami alerts
21:04 JST 21 Feb 2012 Miyagi-ken Oki 60 km 2.8 38.6 N 141.6 E1 No tsunami alerts
23:36 JST 21 Feb 2012 Sado Fukin 10 km 3.8 37.9 N 138.1 E2 No tsunami alerts
23:44 JST 21 Feb 2012 Sado Fukin 10 km 3.4 37.9 N 138.1 E2 No tsunami alerts
01:17 JST 22 Feb 2012 Amami-oshima Kinkai 30 km 3.2 28.2 N 129.6 E1 No tsunami alerts
02:26 JST 22 Feb 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.6 E2 No tsunami alerts
02:59 JST 22 Feb 2012 Chiba-ken Hokuseibu 70 km 3.2 35.6 N 140.2 E1 No tsunami alerts
04:13 JST 22 Feb 2012 Ibaraki-ken Nambu 50 km 3.0 36.1 N 139.9 E1 No tsunami alerts
05:35 JST 22 Feb 2012 Urakawa Oki 60 km 3.5 41.6 N 142.1 E1 No tsunami alerts
05:43 JST 22 Feb 2012 Ibaraki-ken Hokubu 10 km 3.0 36.7 N 140.6 E1 No tsunami alerts
07:43 JST 22 Feb 2012 Miyagi-ken Oki 10 km 4.3 37.8 N 142.6 E1 No tsunami alerts
09:54 JST 22 Feb 2012 Chiba-ken Toho-oki 20 km 3.7 35.7 N 141.0 E1 No tsunami alerts
10:55 JST 22 Feb 2012 Iwate-ken Oki 30 km 4.2 39.1 N 142.5 E1 No tsunami alerts
13:07 JST 22 Feb 2012 Fukushima-ken Hamadori 20 km 3.0 37.0 N 140.6 E1 No tsunami alerts
17:28 JST 22 Feb 2012 Iwate-ken Oki 60 km 4.0 40.1 N 142.2 E2 No tsunami alerts
20:03 JST 22 Feb 2012 Miyagi-ken Oki 60 km 3.6 38.5 N 141.7 E1 No tsunami alerts
22:10 JST 22 Feb 2012 Ibaraki-ken Oki 20 km 3.4 36.0 N 141.2 E1 No tsunami alerts
05:35 JST 23 Feb 2012 Chiba-ken Hokuseibu 80 km 2.9 35.6 N 140.1 E1 No tsunami alerts
12:20 JST 23 Feb 2012 Toyama-ken Seibu very shallow 2.7 36.3 N 137.0 E1 No tsunami alerts
13:09 JST 23 Feb 2012 Fukushima-ken Hamadori 20 km 3.4 37.0 N 140.7 E1 No tsunami alerts
15:44 JST 23 Feb 2012 Fukushima-ken Oki 10 km 2.8 37.1 N 141.1 E1 No tsunami alerts
00:26 JST 24 Feb 2012 Urakawa Oki 60 km 4.0 42.1 N 142.4 E2 No tsunami alerts
04:28 JST 24 Feb 2012 Iwate-ken Oki 60 km 4.7 39.0 N 142.3 E3 No tsunami alerts
04:30 JST 24 Feb 2012 Iwate-ken Oki 50 km 3.7 39.0 N 142.3 E1 No tsunami alerts
11:45 JST 24 Feb 2012 Ibaraki-ken Nambu 70 km 3.4 36.1 N 140.1 E1 No tsunami alerts
13:10 JST 24 Feb 2012 Ibaraki-ken Nambu 70 km 4.3 36.0 N 140.1 E3 No tsunami alerts
13:10 JST 24 Feb 2012 Ibaraki-ken Nambu 70 km 4.3 36.0 N 140.1 E3 Intensity correction
00:59 JST 25 Feb 2012 Miyagi-ken Oki 20 km 4.0 38.3 N 142.4 E1 No tsunami alerts
04:53 JST 25 Feb 2012 Nagano-ken Nambu very shallow 2.6 35.8 N 137.6 E2 No tsunami alerts
05:15 JST 25 Feb 2012 Miyagi-ken Oki 60 km 3.7 38.3 N 141.8 E1 No tsunami alerts
05:49 JST 25 Feb 2012 Hiroshima-ken Hokubu very shallow 2.6 35.0 N 132.9 E1 No tsunami alerts
06:02 JST 25 Feb 2012 Nagano-ken Hokubu 10 km 3.1 37.0 N 138.5 E2 No tsunami alerts
07:33 JST 25 Feb 2012 Ibaraki-ken Oki 50 km 4.0 36.6 N 141.0 E1 No tsunami alerts
08:00 JST 25 Feb 2012 Fukushima-ken Oki 50 km 3.5 36.9 N 141.1 E1 No tsunami alerts
14:15 JST 25 Feb 2012 Ibaraki-ken Hokubu 10 km 3.3 36.7 N 140.7 E1 No tsunami alerts
15:42 JST 25 Feb 2012 Chiba-ken Hokuseibu 80 km 3.2 35.6 N 140.2 E1 No tsunami alerts
17:27 JST 25 Feb 2012 Fukushima-ken Aizu 10 km 2.6 37.7 N 139.9 E1 No tsunami alerts
20:39 JST 25 Feb 2012 Fukushima-ken Hamadori 20 km 3.0 37.0 N 140.6 E1 No tsunami alerts
23:27 JST 25 Feb 2012 Ibaraki-ken Hokubu 50 km 3.4 36.5 N 140.6 E2 No tsunami alerts
04:12 JST 26 Feb 2012 Toyama-ken Seibu very shallow 3.3 36.3 N 137.0 E2 No tsunami alerts
04:31 JST 26 Feb 2012 Ibaraki-ken Oki 40 km 3.2 36.3 N 141.0 E1 No tsunami alerts
05:42 JST 26 Feb 2012 Miyagi-ken Oki 60 km 2.9 38.6 N 141.7 E1 No tsunami alerts
07:37 JST 26 Feb 2012 Bungo-suido 40 km 2.9 33.3 N 132.3 E1 No tsunami alerts
11:35 JST 26 Feb 2012 Taiwan and its Vicinity 20 km 6.1 22.7 N 120.8 E1 No tsunami alerts
16:05 JST 26 Feb 2012 Kushiro Oki 60 km 4.1 42.6 N 144.6 E2 No tsunami alerts
17:58 JST 26 Feb 2012 Miyagi-ken Oki 60 km 3.4 38.3 N 141.6 E1 No tsunami alerts
20:00 JST 26 Feb 2012 Miyagi-ken Oki 60 km 2.6 38.6 N 141.7 E1 No tsunami alerts
20:26 JST 26 Feb 2012 Miyagi-ken Oki 50 km 3.3 38.5 N 141.7 E1 No tsunami alerts
22:01 JST 26 Feb 2012 Yamanashi-ken Tobu-Fujigoko 20 km 3.3 35.5 N 139.0 E2 No tsunami alerts
23:19 JST 26 Feb 2012 Fukushima-ken Oki 30 km 4.2 37.5 N 142.0 E2 No tsunami alerts
05:58 JST 27 Feb 2012 Miyagi-ken Oki 50 km 2.8 38.9 N 141.9 E1 No tsunami alerts
07:57 JST 27 Feb 2012 Ibaraki-ken Oki 40 km 3.7 36.3 N 141.1 E1 No tsunami alerts
10:11 JST 27 Feb 2012 Iriomotejima Fukin 30 km 5.4 23.9 N 123.4 E2 No tsunami alerts
11:25 JST 27 Feb 2012 Aomori-ken Toho-oki 10 km 4.5 40.5 N 142.9 E1 No tsunami alerts
16:34 JST 27 Feb 2012 Fukushima-ken Hamadori 20 km 3.1 37.0 N 140.6 E1 No tsunami alerts
16:48 JST 27 Feb 2012 Ishikawa-ken Noto-chiho 10 km 2.7 37.4 N 137.0 E1 No tsunami alerts
20:32 JST 27 Feb 2012 Iwate-ken Oki 50 km 4.0 39.9 N 142.1 E2 No tsunami alerts
01:29 JST 28 Feb 2012 Okinawa-honto Kinkai 50 km 4.5 25.3 N 127.2 E2 No tsunami alerts
02:47 JST 28 Feb 2012 Chiba-ken Nambu 120 km 4.1 35.2 N 140.1 E1 No tsunami alerts
04:32 JST 28 Feb 2012 Okinawa-honto Kinkai 50 km 5.6 25.5 N 127.3 E3 No tsunami alerts
04:57 JST 28 Feb 2012 Okinawa-honto Kinkai 40 km 4.5 25.5 N 127.2 E1 No tsunami alerts
05:00 JST 28 Feb 2012 Fukushima-ken Hamadori 10 km 2.7 37.2 N 140.9 E1 No tsunami alerts
13:34 JST 28 Feb 2012 Wakayama-ken Hokubu 10 km 2.7 34.2 N 135.3 E2 No tsunami alerts
13:40 JST 28 Feb 2012 Ibaraki-ken Oki 10 km 4.8 36.3 N 142.1 E1 No tsunami alerts
14:20 JST 28 Feb 2012 Ibaraki-ken Oki 20 km 5.1 36.6 N 141.0 E4 No tsunami alerts
14:31 JST 28 Feb 2012 Ibaraki-ken Hokubu 10 km 3.2 36.7 N 140.6 E2 No tsunami alerts
15:25 JST 28 Feb 2012 Chiba-ken Toho-oki 10 km 2.8 35.7 N 141.0 E1 No tsunami alerts
23:14 JST 28 Feb 2012 Miyagi-ken Oki 60 km 4.1 38.3 N 142.0 E2 No tsunami alerts
23:30 JST 28 Feb 2012 Nemuro-hanto Nanto-oki 90 km 4.1 43.2 N 145.7 E2 No tsunami alerts
00:08 JST 29 Feb 2012 Ogasawara-shoto Seiho-oki 520 km 5.2 28.2 N 139.9 E1 No tsunami alerts
01:23 JST 29 Feb 2012 Hyuga-nada 20 km 4.5 31.8 N 132.0 E2 No tsunami alerts
01:57 JST 29 Feb 2012 Chiba-ken Toho-oki 40 km 4.3 35.5 N 141.1 E1 No tsunami alerts
02:12 JST 29 Feb 2012 Hyuga-nada 20 km 3.5 31.8 N 132.0 E1 No tsunami alerts
07:53 JST 29 Feb 2012 Fukushima-ken Oki 10 km 4.8 37.4 N 143.8 E1 No tsunami alerts
08:44 JST 29 Feb 2012 Ibaraki-ken Oki 20 km 3.5 36.6 N 141.1 E1 No tsunami alerts
08:49 JST 29 Feb 2012 Izu-ohshima Kinkai 30 km 3.5 35.0 N 139.6 E1 No tsunami alerts
18:00 JST 29 Feb 2012 Fukushima-ken Oki 40 km 5.3 37.3 N 141.7 E4 No tsunami alerts
19:33 JST 29 Feb 2012 Hyuga-nada 20 km 4.1 31.8 N 132.0 E2 No tsunami alerts
20:31 JST 29 Feb 2012 Sanriku Oki 10 km 5.1 39.6 N 143.6 E1 No tsunami alerts
20:41 JST 29 Feb 2012 Chiba-ken Hokutobu 40 km 3.0 35.9 N 140.5 E1 No tsunami alerts
23:32 JST 29 Feb 2012 Chiba-ken Toho-oki 20 km 5.8 35.2 N 141.5 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