J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2025-12-01 02:25:50 Off the coast of Miyagi     70 4.63  
2025-12-01 08:44:36 Off the coast of Fukushima     50 3.52  
2025-12-01 09:48:01 Off the coast of Uraga     50 4.22  
2025-12-02 19:03:04 Off the coast of Kushiro     60 5.34  
2025-12-02 20:07:16 Niijima-Kozu     20 4.53  
2025-12-03 15:20:22 Off the coast of Tokachi     80 3.81  
2025-12-03 23:41:01 Off the coast of Miyagi     60 3.82  
2025-12-04 08:37:46 Fukushima-Hamadori     10 3.83  
2025-12-04 18:03:51 Tokachi-Central     60 3.62  
2025-12-04 21:11:33 Hyuganada     30 3.42  
2025-12-05 11:04:53 Nagano-North     10 3.43  
2025-12-06 17:15:00 Off the east coast of Osumi Peninsula     10 3.72  
2025-12-07 09:16:44 Off the coast of Sanriku     30 4.72  
2025-12-07 09:31:41 Hyuganada     40 4.32  
2025-12-07 18:38:17 Off the coast of Hachijojima     50 4.21  
2025-12-08 20:24:43 Near Taiwan     90 5.31  
2025-12-08 23:15:10 Off the east coast of Aomori     60 7.26 Lower  
2025-12-08 23:33:39 Off the east coast of Aomori     50 5.43  
2025-12-08 23:51:23 Near the coast of Miyakojima     40 42  
2025-12-09 00:57:55 Off the east coast of Aomori     40 4.72  
2025-12-09 02:16:15 Off the southeast coast of Nemuro Peninsula     50 3.72  
2025-12-09 02:58:26 Off the east coast of Aomori     40 4.42  
2025-12-09 03:56:29 Off the east coast of Aomori     40 5.94  
2025-12-09 04:01:10 Off the east coast of Aomori     30 5.13  
2025-12-09 06:24:17 Near Taiwan     80 52  
2025-12-09 06:52:41 Off the east coast of Aomori     40 6.64  
2025-12-09 07:07:14 Off the east coast of Aomori     40 4.92  
2025-12-09 08:59:04 Off the east coast of Aomori     50 53  
2025-12-09 09:18:27 Off the east coast of Aomori     70 4.43  
2025-12-09 14:15:47 Off the east coast of Aomori     40 4.32  
2025-12-09 18:09:45 Off the east coast of Aomori     60 5.13  
2025-12-09 19:56:30 Near Sado     10 3.52  
2025-12-10 07:20:02 Off the east coast of Aomori     40 4.52  
2025-12-10 08:04:36 Off the east coast of Aomori     50 4.63  
2025-12-10 12:15:11 Miyakejima     30 3.71  
2025-12-10 15:23:48 Off the east coast of Aomori     50 4.12  
2025-12-10 23:01:29 Off the east coast of Aomori     60 4.32  
2025-12-10 23:52:23 Off the east coast of Aomori     60 5.64  
2025-12-11 03:26:24 Niijima-Kozu     10 3.72  
2025-12-11 03:55:26 Niijima-Kozu     10 3.82  
2025-12-11 04:00:19 Niijima-Kozu     10 3.82  
2025-12-11 12:42:57 Off the east coast of Chiba     20 3.92  
2025-12-11 19:12:13 Off the coast of Uraga     70 3.72  
2025-12-12 03:11:05 Off the east coast of Aomori     40 4.32  
2025-12-12 07:09:17 Off the east coast of Aomori     30 52  
2025-12-12 11:44:13 Off the east coast of Aomori     50 6.65 Lower  
2025-12-12 12:06:33 Off the east coast of Aomori     40 42  
2025-12-12 12:21:38 Off the east coast of Aomori     40 5.63  
2025-12-12 12:26:07 Off the east coast of Aomori     50 4.72  
2025-12-12 13:58:23 Off the east coast of Aomori     30 4.32  
2025-12-12 16:55:41 Off the east coast of Aomori     50 4.22  
2025-12-12 19:05:19 Ibaraki-South     60 5.14  
2025-12-14 06:49:35 Off the coast of Sanriku     30 4.82  
2025-12-14 07:52:54 Off the coast of Fukushima     60 4.23  
2025-12-14 22:49:42 Off the east coast of Aomori     60 3.82  
2025-12-14 23:26:50 Off the coast of Noto Peninsula     10 54  
2025-12-15 03:09:27 Off the east coast of Aomori     50 4.72  
2025-12-15 04:03:36 Off the coast of Noto Peninsula     10 4.74  
2025-12-15 08:44:05 Off the southeast coast of Nemuro Peninsula     50 3.72  
2025-12-16 05:47:39 Near the coast of Amami Oshima     20 3.62  
2025-12-16 06:06:28 Ibaraki-North     60 42  
2025-12-16 13:57:05 Fukui-Reihoku     10 3.82  
2025-12-16 14:38:49 Off the east coast of Aomori     40 5.33  
2025-12-16 23:13:06 Kumamoto-Aso     10 3.43  
2025-12-17 07:28:37 Off the east coast of Aomori     60 3.52  
2025-12-17 10:44:29 Off the east coast of Hokkaido     10 4.72  
2025-12-17 11:43:38 Off the east coast of Satsunan Islands     80 4.82  
2025-12-17 18:50:17 Off the east coast of Aomori     60 4.53  
2025-12-18 09:50:38 Off the coast of Sanriku     30 4.52  
2025-12-18 14:20:07 Off the coast of Sanriku     20 4.52  
2025-12-18 20:32:40 Near Taiwan     80 51  
2025-12-18 22:57:20 Off the coast of Fukushima     70 4.33  
2025-12-19 13:04:09 Off the coast of Noto Peninsula     10 3.42  
2025-12-19 13:35:52 Off the northeast coast of Miyakojima     200 5.3Unkn 
2025-12-19 21:54:19 Off the coast of Hachijojima     150 4.52  
2025-12-20 06:40:04 Off the coast of Sanriku     30 4.42  
2025-12-20 21:33:54 Off the southeast coast of Nemuro Peninsula     30 4.83  
2025-12-20 21:58:52 Off the southeast coast of Nemuro Peninsula     50 53  
2025-12-21 10:29:01 Off the east coast of Aomori     60 5.44  
2025-12-21 12:47:54 Off the southeast coast of Iturup     40 5.42  
2025-12-21 15:51:38 Near the coast of Amami Oshima     10 3.82  
2025-12-21 15:58:49 Off the east coast of Kanto     40 52  
2025-12-21 23:23:44 Hyuganada     10 3.62  
2025-12-22 08:33:01 Off the coast of Iwate     50 4.22  
2025-12-22 21:38:08 Off the coast of Okinawa Main Island     110 4.82  
2025-12-23 05:03:49 Tokachi-South     50 3.82  
2025-12-23 08:28:55 Off the coast of Fukushima     70 3.92  
2025-12-23 18:44:17 Off the south coast of Tokaido     380 5Unkn 
2025-12-24 05:55:01 Near the coast of Amami Oshima     10 3.72  
2025-12-24 18:46:59 Near Taiwan     100 5.51  
2025-12-26 01:17:40 Off the east coast of Aomori     50 5.43  
2025-12-26 01:25:50 Off the east coast of Aomori     50 4.42  
2025-12-27 12:55:17 Off the coast of Kushiro     50 4.13  
2025-12-28 00:05:55 Near Taiwan     70 6.74  
2025-12-30 17:12:24 Near the coast of Amami Oshima     10 5.54  
2025-12-30 17:48:13 Near the coast of Amami Oshima     10 4.13  
2025-12-31 04:03:45 Near the coast of Amami Oshima     10 3.63  
2025-12-31 07:19:44 Off the coast of Sanriku     30 4.92  
2025-12-31 08:51:35 Off the coast of Iwate     40 4.62  
2025-12-31 16:43:36 Near the coast of Amami Oshima     20 4.33  
2025-12-31 23:26:57 Off the coast of Iwate     50 5.74  
2025-12-31 23:50:02 Off the coast of Iwate     50 3.72  
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
2024 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
2025 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
2026 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

Information provided by the Japan Meteorological Agency.
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