J1 Earthquake Early Warning
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Quake Time Epicenter Latitude Longitude Depth Magnitude Intensity Remarks
01:33 JST 01 Aug 2013 Abashiri Oki 260 km 4.3 44.8 N 143.2 E1 No tsunami alerts
01:40 JST 01 Aug 2013 Fukushima-ken Aizu very shallow 3.3 37.1 N 139.4 EUnknNo tsunami alerts
02:31 JST 01 Aug 2013 Mutsu-wan 10 km 2.7 41.1 N 140.8 E1 No tsunami alerts
11:09 JST 01 Aug 2013 Urakawa Oki 30 km 3.4 41.7 N 143.0 E1 No tsunami alerts
18:46 JST 01 Aug 2013 Fukushima-ken Aizu 10 km 1.9 37.1 N 139.3 E1 No tsunami alerts
19:15 JST 01 Aug 2013 Fukushima-ken Aizu very shallow 2.1 37.1 N 139.4 E1 No tsunami alerts
21:18 JST 01 Aug 2013 Fukushima-ken Aizu 10 km 3.2 37.1 N 139.4 EUnknNo tsunami alerts
23:09 JST 01 Aug 2013 Ibaraki-ken Hokubu 10 km 2.7 36.8 N 140.6 E1 No tsunami alerts
12:08 JST 02 Aug 2013 Tokachi-chiho Chubu 110 km 3.5 42.9 N 143.7 E1 No tsunami alerts
23:51 JST 02 Aug 2013 Tokushima-ken Hokubu 10 km 2.8 34.1 N 134.5 E1 No tsunami alerts
00:12 JST 03 Aug 2013 Miyagi-ken Oki 40 km 3.8 38.7 N 142.3 E1 No tsunami alerts
09:56 JST 03 Aug 2013 Enshu-nada 40 km 5.1 34.6 N 137.5 EUnknNo tsunami alerts
15:12 JST 03 Aug 2013 Iwate-ken Oki 30 km 3.7 39.0 N 142.4 E1 No tsunami alerts
17:05 JST 03 Aug 2013 Miyagi-ken Oki 50 km 4.0 38.2 N 142.0 E2 No tsunami alerts
00:19 JST 04 Aug 2013 Aomori-ken Tsugaru-nambu 10 km 2.9 40.6 N 140.5 E2 No tsunami alerts
02:44 JST 04 Aug 2013 Chiba-ken Toho-oki 60 km 3.5 35.6 N 140.9 E2 No tsunami alerts
02:59 JST 04 Aug 2013 Hokkaido Toho-oki 60 km 3.9 43.5 N 146.6 E1 No tsunami alerts
03:23 JST 04 Aug 2013 Amakusa-nada 10 km 2.7 32.1 N 130.0 E1 No tsunami alerts
12:29 JST 04 Aug 2013 Miyagi-ken Oki 50 km 6.0 38.1 N 141.8 EUnknNo tsunami alerts
12:29 JST 04 Aug 2013 Miyagi-ken Oki 50 km 6.0 38.1 N 141.8 E5 upper Intensity correction
12:32 JST 04 Aug 2013 Miyagi-ken Oki 60 km 4.2 38.2 N 141.8 E2 No tsunami alerts
13:08 JST 04 Aug 2013 Miyagi-ken Oki 60 km 3.9 38.2 N 141.8 E2 No tsunami alerts
14:51 JST 04 Aug 2013 Ibaraki-ken Hokubu 60 km 3.9 36.5 N 140.6 E2 No tsunami alerts
23:23 JST 04 Aug 2013 Fukushima-ken Oki 50 km 3.6 37.8 N 141.6 E1 No tsunami alerts
00:57 JST 05 Aug 2013 Southern Sea of Okhotsk 400 km 5.8 46.7 N 145.7 E2 No tsunami alerts
02:10 JST 05 Aug 2013 Etorofuto Nanto-oki very shallow 4.6 44.0 N 148.1 E1 No tsunami alerts
02:16 JST 05 Aug 2013 Miyakojima Kinkai 10 km 4.3 24.8 N 124.8 E2 No tsunami alerts
09:47 JST 05 Aug 2013 Niigata-ken Joetsu-chiho 10 km 1.9 37.1 N 138.5 E1 No tsunami alerts
13:04 JST 05 Aug 2013 Fukushima-ken Hamadori 10 km 3.4 37.1 N 140.7 E1 No tsunami alerts
13:49 JST 05 Aug 2013 Tochigi-ken Hokubu 10 km 3.2 37.1 N 140.1 E2 No tsunami alerts
16:29 JST 05 Aug 2013 Fukushima-ken Nakadori 10 km 2.5 37.2 N 140.1 E1 No tsunami alerts
17:30 JST 05 Aug 2013 Ibaraki-ken Oki 40 km 3.6 36.4 N 141.1 E1 No tsunami alerts
22:05 JST 05 Aug 2013 Ibaraki-ken Oki 10 km 3.4 36.6 N 141.0 E1 No tsunami alerts
23:31 JST 05 Aug 2013 Niijima-Kozushima Kinkai 10 km 2.9 34.4 N 139.3 E2 No tsunami alerts
00:35 JST 06 Aug 2013 Miyagi-ken Oki 60 km 3.8 38.3 N 141.8 E2 No tsunami alerts
02:20 JST 06 Aug 2013 Miyagi-ken Oki 50 km 4.0 38.2 N 141.8 EUnknNo tsunami alerts
07:49 JST 06 Aug 2013 Nagano-ken Nambu 10 km 2.2 35.9 N 137.7 E1 No tsunami alerts
10:56 JST 06 Aug 2013 Tottori-ken Seibu 20 km 2.4 35.2 N 133.3 E1 No tsunami alerts
14:24 JST 06 Aug 2013 Niijima-Kozushima Kinkai 10 km 3.0 34.2 N 139.3 E1 No tsunami alerts
18:33 JST 06 Aug 2013 Miyazaki-ken Hokubu-heiyabu 20 km 2.0 32.1 N 131.5 E1 No tsunami alerts
20:07 JST 06 Aug 2013 Fukushima-ken Oki 30 km 3.4 37.3 N 141.2 E1 No tsunami alerts
00:19 JST 07 Aug 2013 Fukushima-ken Oki 10 km 4.2 37.2 N 142.4 E1 No tsunami alerts
03:54 JST 07 Aug 2013 Miyagi-ken Oki 50 km 3.6 38.3 N 141.6 E2 No tsunami alerts
06:30 JST 07 Aug 2013 Chiba-ken Toho-oki 20 km 4.4 35.3 N 141.2 E2 No tsunami alerts
09:46 JST 07 Aug 2013 Tochigi-ken Hokubu 10 km 2.1 36.9 N 139.4 E1 No tsunami alerts
15:27 JST 07 Aug 2013 Tokachi Oki 60 km 3.1 42.5 N 143.6 E1 No tsunami alerts
16:51 JST 07 Aug 2013 Aomori-ken Toho-oki 60 km 4.6 41.2 N 142.3 EUnknNo tsunami alerts
18:26 JST 07 Aug 2013 Fukushima-ken Hamadori 10 km 2.7 37.0 N 140.6 E1 No tsunami alerts
03:22 JST 08 Aug 2013 Aichi-ken Seibu 40 km 3.1 35.0 N 137.0 E1 No tsunami alerts
04:51 JST 08 Aug 2013 Iwate-ken Oki 40 km 3.3 39.3 N 142.3 E1 No tsunami alerts
05:21 JST 08 Aug 2013 Nagano-ken Chubu very shallow 2.1 36.3 N 137.7 E1 No tsunami alerts
21:56 JST 08 Aug 2013 Bungo-suido 40 km 3.6 33.4 N 132.2 E1 No tsunami alerts
02:43 JST 09 Aug 2013 Iwate-ken Oki 30 km 4.0 39.2 N 142.4 E1 No tsunami alerts
11:59 JST 09 Aug 2013 Sanriku Oki 10 km 5.2 39.8 N 144.2 E2 No tsunami alerts
12:04 JST 09 Aug 2013 Ibaraki-ken Nambu 70 km 3.6 36.2 N 140.0 E1 No tsunami alerts
17:51 JST 09 Aug 2013 Shizuoka-ken Chubu 40 km 3.4 35.1 N 138.1 E1 No tsunami alerts
18:58 JST 09 Aug 2013 Fukushima-ken Oki 30 km 3.8 37.2 N 141.7 E1 No tsunami alerts
07:30 JST 10 Aug 2013 Fukushima-ken Oki very shallow 3.3 37.1 N 141.0 E2 No tsunami alerts
07:56 JST 10 Aug 2013 Fukushima-ken Oki 50 km 4.8 36.9 N 141.1 EUnknNo tsunami alerts
08:05 JST 10 Aug 2013 Fukushima-ken Oki 50 km 3.7 36.9 N 141.1 E1 No tsunami alerts
16:23 JST 10 Aug 2013 Saitama-ken Nambu 40 km 2.6 35.8 N 139.5 E1 No tsunami alerts
00:00 JST 11 Aug 2013 Miyagi-ken Oki 40 km 3.9 38.7 N 142.2 E1 No tsunami alerts
05:48 JST 11 Aug 2013 Tokushima-ken Hokubu 40 km 3.1 34.1 N 134.4 E1 No tsunami alerts
08:39 JST 11 Aug 2013 Fukushima-ken Aizu 10 km 2.6 37.7 N 139.9 E2 No tsunami alerts
10:08 JST 11 Aug 2013 Iwate-ken Oki 50 km 3.3 39.6 N 142.1 E1 No tsunami alerts
11:18 JST 11 Aug 2013 Miyagi-ken Oki 30 km 4.0 38.4 N 142.2 E1 No tsunami alerts
11:55 JST 11 Aug 2013 Ibaraki-ken Oki 20 km 3.8 36.1 N 141.3 E1 No tsunami alerts
13:09 JST 11 Aug 2013 Miyagi-ken Oki 40 km 3.6 38.1 N 142.1 E1 No tsunami alerts
14:32 JST 11 Aug 2013 Chiba-ken Hokuseibu 80 km 3.2 35.7 N 140.2 E1 No tsunami alerts
16:28 JST 11 Aug 2013 Kanagawa-ken Seibu 20 km 2.9 35.4 N 139.0 E1 No tsunami alerts
18:35 JST 11 Aug 2013 Miyagi-ken Oki 50 km 3.3 38.4 N 141.9 E1 No tsunami alerts
01:25 JST 12 Aug 2013 Ibaraki-ken Oki 40 km 3.1 36.3 N 141.1 E1 No tsunami alerts
08:54 JST 12 Aug 2013 Ibaraki-ken Hokubu 10 km 3.0 36.6 N 140.6 E2 No tsunami alerts
09:32 JST 12 Aug 2013 Nemuro-hanto Nanto-oki 50 km 4.0 43.4 N 146.2 E2 No tsunami alerts
09:51 JST 12 Aug 2013 Urakawa Oki 70 km 4.8 41.9 N 142.3 EUnknNo tsunami alerts
10:13 JST 12 Aug 2013 Noto-hanto Oki 10 km 3.1 37.3 N 136.7 E1 No tsunami alerts
15:17 JST 12 Aug 2013 Iwate-ken Oki 50 km 3.6 39.6 N 142.1 E1 No tsunami alerts
19:57 JST 12 Aug 2013 Ibaraki-ken Oki 50 km 3.6 36.7 N 140.9 E2 No tsunami alerts
20:15 JST 12 Aug 2013 Hachijojima Kinkai 20 km 4.0 33.3 N 139.3 E1 No tsunami alerts
20:35 JST 12 Aug 2013 Miyagi-ken Oki 30 km 3.6 38.4 N 142.2 E1 No tsunami alerts
21:41 JST 12 Aug 2013 Fukushima-ken Hamadori 10 km 3.3 37.1 N 140.7 E1 No tsunami alerts
21:59 JST 12 Aug 2013 Fukushima-ken Oki 20 km 4.8 36.9 N 141.2 EUnknNo tsunami alerts
01:26 JST 13 Aug 2013 Mie-ken Nanto-oki 370 km 4.3 33.7 N 137.2 E1 No tsunami alerts
02:18 JST 13 Aug 2013 Fukushima-ken Hamadori 10 km 4.0 37.1 N 140.7 E2 No tsunami alerts
02:51 JST 13 Aug 2013 Fukushima-ken Aizu 10 km 2.5 37.7 N 140.0 E1 No tsunami alerts
03:37 JST 13 Aug 2013 Niigata-ken Joetsu-chiho 20 km 2.8 37.1 N 138.5 E2 No tsunami alerts
04:55 JST 13 Aug 2013 Fukushima-ken Hamadori 10 km 3.5 37.0 N 140.7 E1 No tsunami alerts
09:10 JST 13 Aug 2013 Tokachi-chiho Hokubu 170 km 4.8 43.6 N 143.6 E2 No tsunami alerts
10:01 JST 13 Aug 2013 Miyagi-ken Oki 40 km 4.3 38.8 N 142.4 E2 No tsunami alerts
10:53 JST 13 Aug 2013 Fukushima-ken Hamadori 10 km 3.5 37.0 N 140.6 E1 No tsunami alerts
11:19 JST 13 Aug 2013 Tokachi-chiho Chubu 120 km 3.8 43.0 N 143.2 E1 No tsunami alerts
12:14 JST 13 Aug 2013 Ibaraki-ken Hokubu 10 km 3.2 36.9 N 140.6 E1 No tsunami alerts
12:54 JST 13 Aug 2013 Ibaraki-ken Hokubu 10 km 3.5 36.8 N 140.6 E1 No tsunami alerts
05:50 JST 14 Aug 2013 Shizuoka-ken Tobu 10 km 2.9 35.3 N 138.7 E2 No tsunami alerts
09:45 JST 14 Aug 2013 Ibaraki-ken Hokubu 10 km 3.9 36.6 N 140.6 E3 No tsunami alerts
14:31 JST 14 Aug 2013 Ibaraki-ken Hokubu 10 km 4.1 36.6 N 140.6 EUnknNo tsunami alerts
16:11 JST 14 Aug 2013 Fukushima-ken Nakadori 10 km 3.1 36.9 N 140.5 E1 No tsunami alerts
20:56 JST 14 Aug 2013 Niijima-Kozushima Kinkai 10 km 3.1 34.2 N 139.2 EUnknNo tsunami alerts
21:06 JST 14 Aug 2013 Niijima-Kozushima Kinkai 10 km 2.0 34.2 N 139.2 E1 No tsunami alerts
22:25 JST 14 Aug 2013 Wakayama-ken Hokubu 10 km 2.3 34.2 N 135.4 E1 No tsunami alerts
23:43 JST 14 Aug 2013 Niijima-Kozushima Kinkai 10 km 2.4 34.2 N 139.2 E1 No tsunami alerts
04:34 JST 15 Aug 2013 Nagano-ken Nambu 10 km 2.4 35.8 N 137.6 E2 No tsunami alerts
07:08 JST 15 Aug 2013 Kanagawa-ken Seibu 10 km 2.7 35.4 N 139.2 E1 No tsunami alerts
07:41 JST 15 Aug 2013 Osaka-fu Nambu 10 km 2.6 34.3 N 135.2 E1 No tsunami alerts
07:54 JST 15 Aug 2013 Ibaraki-ken Oki 30 km 4.3 36.7 N 141.2 E3 No tsunami alerts
14:46 JST 15 Aug 2013 Wakayama-ken Hokubu 10 km 3.0 34.0 N 135.3 E1 No tsunami alerts
16:58 JST 15 Aug 2013 Iwate-ken Oki 20 km 3.3 39.1 N 142.5 E1 No tsunami alerts
19:55 JST 15 Aug 2013 Wakayama-ken Hokubu 10 km 2.2 34.2 N 135.2 E1 No tsunami alerts
22:00 JST 15 Aug 2013 Ibaraki-ken Nambu 50 km 2.9 36.1 N 139.9 E1 No tsunami alerts
04:03 JST 16 Aug 2013 Ibaraki-ken Oki 20 km 4.1 36.5 N 141.2 E2 No tsunami alerts
09:29 JST 16 Aug 2013 Miyagi-ken Oki 50 km 3.2 38.8 N 142.0 E1 No tsunami alerts
10:11 JST 16 Aug 2013 Niigata-ken Kaetsu-oki 10 km 3.4 38.4 N 139.3 E1 No tsunami alerts
22:35 JST 16 Aug 2013 Tochigi-ken Hokubu very shallow 2.9 36.9 N 139.4 E2 No tsunami alerts
22:57 JST 16 Aug 2013 Tochigi-ken Nambu 10 km 3.0 36.6 N 139.5 E1 No tsunami alerts
23:02 JST 16 Aug 2013 Tochigi-ken Hokubu 10 km 3.0 36.9 N 139.4 E2 No tsunami alerts
23:05 JST 16 Aug 2013 Tochigi-ken Hokubu 10 km 3.3 36.9 N 139.4 E2 No tsunami alerts
01:28 JST 17 Aug 2013 Iwate-ken Oki 60 km 4.0 39.6 N 142.7 E1 No tsunami alerts
01:41 JST 17 Aug 2013 Urakawa Oki 70 km 4.0 41.9 N 142.4 E1 No tsunami alerts
02:27 JST 17 Aug 2013 Miyagi-ken Oki 50 km 3.4 38.9 N 142.0 E1 No tsunami alerts
02:53 JST 17 Aug 2013 Nagano-ken Hokubu 10 km 3.0 36.6 N 138.4 E2 No tsunami alerts
06:14 JST 17 Aug 2013 Chiba-ken Toho-oki 20 km 3.6 35.6 N 141.0 E1 No tsunami alerts
10:21 JST 17 Aug 2013 Tochigi-ken Hokubu 10 km 2.6 36.9 N 139.4 E2 No tsunami alerts
11:05 JST 17 Aug 2013 Amami-oshima Kinkai very shallow 3.4 27.5 N 129.0 E2 No tsunami alerts
13:16 JST 17 Aug 2013 Niijima-Kozushima Kinkai 10 km 2.4 34.4 N 139.3 E1 No tsunami alerts
17:27 JST 17 Aug 2013 Okinawa-honto Kinkai 60 km 3.2 26.1 N 126.7 E1 No tsunami alerts
19:21 JST 17 Aug 2013 Ibaraki-ken Oki 30 km 4.6 36.6 N 141.8 E1 No tsunami alerts
01:30 JST 18 Aug 2013 Hokkaido Nansei-oki 10 km 2.9 42.2 N 139.3 E1 No tsunami alerts
01:42 JST 18 Aug 2013 Ibaraki-ken Nambu 50 km 3.3 36.1 N 139.9 E1 No tsunami alerts
08:01 JST 18 Aug 2013 Hachijojima Kinkai 10 km 5.0 33.3 N 139.2 E2 No tsunami alerts
10:06 JST 18 Aug 2013 Hachijojima Kinkai 10 km 3.9 33.3 N 139.3 E1 No tsunami alerts
13:59 JST 18 Aug 2013 Tochigi-ken Hokubu 10 km 2.3 36.9 N 139.4 E1 No tsunami alerts
18:51 JST 18 Aug 2013 Niijima-Kozushima Kinkai very shallow 2.4 34.3 N 139.2 E1 No tsunami alerts
01:36 JST 19 Aug 2013 Fukushima-ken Oki 40 km 3.7 37.7 N 141.8 E1 No tsunami alerts
03:59 JST 19 Aug 2013 Fukushima-ken Hamadori 10 km 3.2 37.1 N 140.7 E1 No tsunami alerts
04:02 JST 19 Aug 2013 Fukushima-ken Hamadori 10 km 3.6 37.0 N 140.7 E2 No tsunami alerts
11:22 JST 19 Aug 2013 Ibaraki-ken Hokubu 10 km 3.9 36.6 N 140.6 EUnknNo tsunami alerts
18:35 JST 19 Aug 2013 Ibaraki-ken Oki 40 km 3.6 36.6 N 141.1 E1 No tsunami alerts
19:47 JST 19 Aug 2013 Niigata-ken Chuetsu-chiho 20 km 2.6 37.3 N 138.9 E1 No tsunami alerts
21:05 JST 19 Aug 2013 Tochigi-ken Hokubu 10 km 2.0 36.9 N 139.4 E1 No tsunami alerts
02:46 JST 20 Aug 2013 Hyuga-nada 40 km 3.8 31.6 N 132.0 E1 No tsunami alerts
14:02 JST 20 Aug 2013 Iwate-ken Oki 30 km 3.8 39.8 N 142.5 E1 No tsunami alerts
23:12 JST 20 Aug 2013 Chiba-ken Toho-oki 10 km 3.8 35.7 N 140.9 E2 No tsunami alerts
12:21 JST 21 Aug 2013 Fukushima-ken Aizu 10 km 3.1 37.3 N 139.9 E2 No tsunami alerts
17:59 JST 21 Aug 2013 Miyagi-ken Oki 40 km 3.6 38.6 N 141.9 E1 No tsunami alerts
00:28 JST 22 Aug 2013 Fukushima-ken Oki 40 km 4.3 37.5 N 141.8 E2 No tsunami alerts
01:14 JST 22 Aug 2013 Ibaraki-ken Hokubu 60 km 3.7 36.5 N 140.6 E2 No tsunami alerts
01:57 JST 22 Aug 2013 Hyuga-nada 30 km 3.4 32.7 N 132.3 E2 No tsunami alerts
02:20 JST 22 Aug 2013 Fukushima-ken Oki 20 km 4.3 36.9 N 141.3 E2 No tsunami alerts
14:31 JST 22 Aug 2013 Aomori-ken Toho-oki 60 km 2.9 40.5 N 142.0 E1 No tsunami alerts
15:53 JST 22 Aug 2013 Hidaka-chiho Tobu 60 km 4.8 42.3 N 143.0 EUnknNo tsunami alerts
17:02 JST 22 Aug 2013 Iwate-ken Oki 50 km 3.8 39.3 N 142.1 E2 No tsunami alerts
19:13 JST 22 Aug 2013 Kii-suido 40 km 3.4 33.6 N 134.8 E1 No tsunami alerts
01:10 JST 23 Aug 2013 Tochigi-ken Hokubu 10 km 2.4 36.9 N 139.4 E2 No tsunami alerts
11:46 JST 23 Aug 2013 Ibaraki-ken Hokubu very shallow 2.4 36.6 N 140.6 E1 No tsunami alerts
12:34 JST 23 Aug 2013 Miyagi-ken Oki 30 km 3.9 38.3 N 142.3 E1 No tsunami alerts
17:10 JST 23 Aug 2013 Nagano-ken Chubu 10 km 1.5 36.4 N 138.1 E1 No tsunami alerts
23:21 JST 23 Aug 2013 Ibaraki-ken Hokubu 10 km 3.4 36.6 N 140.6 E3 No tsunami alerts
04:54 JST 24 Aug 2013 Fukushima-ken Oki 60 km 3.8 37.4 N 141.3 E1 No tsunami alerts
17:32 JST 24 Aug 2013 Amakusa-nada 10 km 2.6 32.0 N 129.8 E1 No tsunami alerts
19:36 JST 24 Aug 2013 Amami-oshima Kinkai 20 km 3.2 27.6 N 128.8 E1 No tsunami alerts
05:31 JST 25 Aug 2013 Kushiro Oki 70 km 3.7 42.8 N 145.5 E1 No tsunami alerts
11:00 JST 25 Aug 2013 Satsuma-hanto Seiho-oki 20 km 4.0 31.5 N 129.5 E1 No tsunami alerts
18:18 JST 25 Aug 2013 Miyagi-ken Oki 50 km 4.0 38.3 N 141.6 E2 No tsunami alerts
23:25 JST 25 Aug 2013 Chiba-ken Hokuseibu 80 km 4.2 35.4 N 140.1 E2 No tsunami alerts
08:07 JST 26 Aug 2013 Fukushima-ken Oki 20 km 3.4 37.1 N 141.3 E1 No tsunami alerts
11:38 JST 26 Aug 2013 Fukushima-ken Aizu 10 km 2.2 37.0 N 139.3 E1 No tsunami alerts
11:51 JST 26 Aug 2013 Miyagi-ken Oki 50 km 3.2 38.5 N 141.7 E1 No tsunami alerts
14:24 JST 26 Aug 2013 Miyagi-ken Oki 50 km 4.0 38.9 N 141.9 E2 No tsunami alerts
23:51 JST 26 Aug 2013 Hidaka-chiho Tobu 60 km 3.6 42.3 N 143.0 E2 No tsunami alerts
02:50 JST 27 Aug 2013 Ibaraki-ken Oki 40 km 3.8 36.4 N 141.0 E1 No tsunami alerts
03:43 JST 27 Aug 2013 Osaka-fu Hokubu 10 km 3.5 34.9 N 135.6 E3 No tsunami alerts
03:45 JST 27 Aug 2013 Osaka-fu Hokubu 10 km 2.5 34.9 N 135.6 E1 No tsunami alerts
23:26 JST 27 Aug 2013 Etorofuto Nanto-oki 10 km 5.1 44.9 N 148.9 E1 No tsunami alerts
02:09 JST 28 Aug 2013 Fukushima-ken Oki 30 km 4.5 37.6 N 142.1 E2 No tsunami alerts
06:41 JST 28 Aug 2013 Ibaraki-ken Oki 30 km 4.3 36.6 N 141.1 E2 No tsunami alerts
17:55 JST 28 Aug 2013 Fukushima-ken Oki 60 km 3.9 37.1 N 141.2 E2 No tsunami alerts
21:59 JST 28 Aug 2013 Hokkaido Hokusei-oki 10 km 2.7 44.6 N 141.7 E1 No tsunami alerts
00:21 JST 29 Aug 2013 Fukushima-ken Oki 50 km 3.9 37.0 N 141.1 E2 No tsunami alerts
12:26 JST 29 Aug 2013 Ibaraki-ken Hokubu very shallow 3.9 36.7 N 140.7 E2 No tsunami alerts
18:40 JST 29 Aug 2013 Miyagi-ken Oki 60 km 3.5 38.9 N 141.7 E1 No tsunami alerts
21:45 JST 29 Aug 2013 Fukushima-ken Nakadori 10 km 3.9 37.1 N 140.6 E3 No tsunami alerts
22:02 JST 29 Aug 2013 Kumamoto-ken Amakusa-Ashikita-chiho 10 km 1.8 32.2 N 130.4 E1 No tsunami alerts
22:43 JST 29 Aug 2013 Kanagawa-ken Tobu 50 km 3.5 35.6 N 139.6 E1 No tsunami alerts
09:15 JST 30 Aug 2013 Nagano-ken Chubu very shallow 2.8 36.3 N 137.7 E1 No tsunami alerts
16:36 JST 30 Aug 2013 Fukushima-ken Aizu very shallow 4.0 37.7 N 139.9 EUnknNo tsunami alerts
17:32 JST 30 Aug 2013 Wakayama-ken Nampo-oki 10 km 4.4 33.7 N 136.0 EUnknNo tsunami alerts
17:54 JST 30 Aug 2013 Fukushima-ken Aizu very shallow 2.2 37.7 N 139.9 E1 No tsunami alerts
19:00 JST 30 Aug 2013 Ibaraki-ken Hokubu 10 km 2.9 36.7 N 140.6 E1 No tsunami alerts
20:02 JST 30 Aug 2013 Ibaraki-ken Hokubu very shallow 3.1 36.7 N 140.7 E2 No tsunami alerts
01:56 JST 31 Aug 2013 Ibaraki-ken Oki 50 km 3.7 36.7 N 141.0 E2 No tsunami alerts
01:56 JST 31 Aug 2013 Miyagi-ken Oki 40 km 4.5 38.7 N 142.2 E2 No tsunami alerts
04:35 JST 31 Aug 2013 Tanegashima Kinkai 70 km 3.4 30.8 N 130.7 E1 No tsunami alerts
06:00 JST 31 Aug 2013 Ibaraki-ken Oki 90 km 3.7 36.2 N 140.8 E1 No tsunami alerts
10:35 JST 31 Aug 2013 Miyagi-ken Oki 60 km 4.0 38.4 N 141.9 E1 No tsunami alerts
17:59 JST 31 Aug 2013 Ibaraki-ken Oki 90 km 3.7 36.6 N 140.9 E2 No tsunami alerts
20:56 JST 31 Aug 2013 Miyagi-ken Oki 60 km 3.6 38.2 N 141.8 E1 No tsunami alerts
21:05 JST 31 Aug 2013 Fukushima-ken Oki 40 km 3.6 37.4 N 141.6 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