J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-07-01 06:44:00 Off the coast of Iwate     50 4.32  
2021-07-01 23:40:14 Off the coast of Miyagi     40 3.31  
2021-07-02 17:15:38 Off the coast of Miyagi     10 3.61  
2021-07-03 01:46:00 Off the east coast of Chiba     20 4.53  
2021-07-04 01:24:00 Off the coast of Iwate     50 3.72  
2021-07-04 02:19:54 Off the coast of Uraga     60 3.72  
2021-07-04 04:06:07 Off the coast of Miyagi     60 3.42  
2021-07-04 15:35:21 Off the coast of Ibaraki     40 4.43  
2021-07-04 22:32:04 Off the northwest coast of Amami Oshima     10 4.42  
2021-07-05 01:22:37 Off the coast of Sanriku     10 3.8Unkn 
2021-07-05 07:05:19 Off the northwest coast of Amami Oshima     10 3.81  
2021-07-05 07:36:21 Off the northwest coast of Amami Oshima     10 3.71  
2021-07-05 10:27:51 Off the northwest coast of Amami Oshima     10 3.81  
2021-07-05 10:48:20 Off the northwest coast of Amami Oshima     10 3.61  
2021-07-05 12:20:09 Central Sea of Japan     360 3.6Unkn 
2021-07-05 15:10:54 Off the northwest coast of Amami Oshima     10 3.61  
2021-07-06 04:06:03 Off the northwest coast of Amami Oshima     10 4.82  
2021-07-06 12:23:29 Off the northwest coast of Amami Oshima     10 3.61  
2021-07-06 18:34:12 Off the northwest coast of Amami Oshima     10 4.72  
2021-07-06 23:21:55 Off the east coast of Aomori     70 3.72  
2021-07-07 23:55:32 Off the northwest coast of Amami Oshima     10 4.72  
2021-07-08 01:24:36 Iyonada     50 4.23  
2021-07-08 02:02:33 Central Sea of Japan     370 4.4Unkn 
2021-07-09 06:40:20 Off the coast of Fukushima     70 3.52  
2021-07-09 09:08:57 Near the coast of Ishigakijima     20 3.92  
2021-07-09 11:02:33 Off the coast of Iwate     40 3.61  
2021-07-10 01:26:11 Off the east coast of Aomori     60 3.62  
2021-07-10 05:23:38 Off the coast of Fukushima     10 5.42  
2021-07-10 08:28:18 Off the coast of Fukushima     10 3.9Unkn 
2021-07-11 03:49:10 Off the northwest coast of Amami Oshima     10 4.42  
2021-07-11 05:33:26 Off the northwest coast of Amami Oshima     10 3.81  
2021-07-11 11:34:09 Off the northwest coast of Amami Oshima     10 4.62  
2021-07-12 20:25:32 Off the coast of Miyagi     40 3.52  
2021-07-14 04:09:12 Off the east coast of Osumi Peninsula     20 3.52  
2021-07-14 14:27:35 Off the coast of Fukushima     80 3.61  
2021-07-15 20:12:10 Off the coast of Sanriku     20 4.42  
2021-07-16 13:19:52 Hachijo-jima     10 5.54  
2021-07-16 13:54:55 Hachijo-jima     10 4.22  
2021-07-16 14:09:49 Hachijo-jima     10 3.72  
2021-07-16 20:50:38 Hachijo-jima     10 4.53  
2021-07-17 07:52:15 Off the coast of Kushiro     20 4.22  
2021-07-17 09:02:14 Off the coast of Kushiro     50 3.51  
2021-07-18 01:21:37 Off the coast of Fukushima     40 4.62  
2021-07-19 18:14:05 Off the northwest coast of Amami Oshima     10 3.81  
2021-07-20 08:03:36 Near the coast of Okinawa     10 5.12  
2021-07-20 08:41:23 Off the coast of Fukushima     10 3.51  
2021-07-20 09:42:30 Near the coast of Tanegashima     10 4.13  
2021-07-20 13:58:36 Near the coast of Amami Oshima     30 4.33  
2021-07-20 15:56:22 Off the coast of Hachijojima     90 4.11  
2021-07-25 05:47:07 Near the coast of Okinawa     50 3.52  
2021-07-26 06:12:54 Hyuganada     40 3.51  
2021-07-26 11:16:16 Off the east coast of Aomori     60 4.84  
2021-07-27 05:19:20 Off the coast of Fukushima     90 4.73  
2021-07-27 14:37:49 Ise Bay     370 4.3Unkn 
2021-07-28 00:55:00 Off the coast of Ibaraki     10 4.23  
2021-07-28 02:35:10 Off the coast of Fukushima     50 3.41  
2021-07-29 00:21:59 Off the coast of Fukushima     10 3.51  
2021-07-29 03:19:47 Off the east coast of Chiba     10 4.32  
2021-07-29 13:32:55 Near Taiwan     110 5.82  
2021-07-29 16:17:11 Off the coast of Ibaraki     10 3.71  
2021-07-30 04:18:12 Off the coast of Kushiro     40 31  
2021-07-30 13:05:11 Off the coast of Iwate     20 42  
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

Information provided by the Japan Meteorological Agency.
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