J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-09-01 15:01:55 Off the coast of Sanriku     10 3.51  
2021-09-01 17:16:40 Off the coast of Fukushima     40 3.82  
2021-09-02 04:17:06 Off the coast of Fukushima     50 4.73  
2021-09-02 08:46:07 Off the east coast of Aomori     60 3.42  
2021-09-02 09:28:59 Off the coast of Kushiro     50 3.52  
2021-09-02 17:11:23 Near Iriomotejima     20 3.72  
2021-09-02 22:51:08 Miyakejima     10 4.13  
2021-09-03 19:14:42 Southern Sea of Okhotsk     520 5.4Unkn 
2021-09-05 14:48:55 Off the east coast of Aomori     10 3.92  
2021-09-06 23:00:17 Near Taiwan     90 5.32  
2021-09-06 23:50:03 Off the coast of Kushiro     60 4.52  
2021-09-07 05:59:20 Off the east coast of Osumi Peninsula     20 4.43  
2021-09-07 22:25:09 Off the east coast of Chiba     10 3.51  
2021-09-08 03:08:07 Near the coast of Ishigakijima     70 3.61  
2021-09-09 15:44:54 Near the coast of Okinawa     10 42  
2021-09-11 20:00:03 Off the coast of Sanriku     10 3.7Unkn 
2021-09-11 21:30:55 Hachijo-jima     210 3.5Unkn 
2021-09-12 11:17:05 Bungo channel     40 4.23  
2021-09-12 14:32:00 Near the coast of Torishima     480 4.8Unkn 
2021-09-13 01:36:07 Off the coast of Miyagi     10 3.72  
2021-09-13 06:31:08 Off the southeast coast of Chiba     50 4.33  
2021-09-13 13:59:49 Off the coast of Iwate     50 3.82  
2021-09-14 07:46:01 Off the south coast of Tokaido     410 6Unkn 
2021-09-14 07:46:05 Off the south coast of Tokaido     390 6.2Unkn 
2021-09-15 21:26:02 Off the coast of Fukushima     10 3.51  
2021-09-17 12:16:10 Off the coast of Fukushima     40 4.53  
2021-09-19 08:07:49 Off the coast of Ibaraki     50 4.43  
2021-09-20 01:11:52 Off the coast of Fukushima     50 3.51  
2021-09-20 17:17:37 Off the west coast of Satsuma Peninsula     10 3.92  
2021-09-21 05:25:38 Kuril Islands     10 72  
2021-09-22 04:33:53 Off the southeast coast of Nemuro Peninsula     60 4.32  
2021-09-25 23:09:52 Off the coast of Iwate     30 3.31  
2021-09-26 07:21:12 Near Taiwan     70 52  
2021-09-27 01:36:13 Off the coast of Uraga     70 3.52  
2021-09-27 19:58:48 Off the coast of Miyagi     50 3.62  
2021-09-27 20:26:38 Off the coast of Ibaraki     30 4.93  
2021-09-28 00:30:39 Off the coast of Miyagi     50 3.62  
2021-09-29 12:26:42 Off the coast of Ibaraki     50 4.53  
2021-09-29 17:37:04 Central Sea of Japan     400 6.1Unkn 
2021-09-30 12:52:23 Off the east coast of Aomori     20 3.82  
2021-09-30 17:45:29 Off the coast of Miyagi     60 4.73  
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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