J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-06-01 07:04:33 Off the coast of Hachijojima     10 4.7Unkn 
2021-06-01 13:43:06 Off the coast of Iwate     10 4.32  
2021-06-01 17:41:51 Near Iriomotejima     10 4.43  
2021-06-02 06:54:52 Off the coast of Tokachi     30 4.72  
2021-06-03 01:12:23 Near the coast of Tanegashima     30 3.72  
2021-06-03 10:31:52 Toyama Bay     10 4.33  
2021-06-05 12:25:41 Near the coast of Minami Daito Island     10 3.51  
2021-06-07 00:59:22 Off the coast of Fukushima     40 3.82  
2021-06-07 03:11:06 Off the southeast coast of Chiba     100 53  
2021-06-07 10:12:36 Off the coast of Fukushima     50 3.41  
2021-06-07 11:11:32 Off the coast of Kushiro     60 3.82  
2021-06-08 10:19:15 Off the coast of Fukushima     80 4.53  
2021-06-09 00:29:00 Off the east coast of Kanto     10 5.32  
2021-06-09 07:34:22 Off the coast of Iwate     20 4.63  
2021-06-09 21:32:22 Off the south coast of Tokaido     370 3.5Unkn 
2021-06-09 22:05:54 Off the coast of Iwate     20 4.63  
2021-06-13 04:12:19 Off the coast of Fukushima     60 3.51  
2021-06-13 16:16:56 Near the coast of Okinawa     40 4.23  
2021-06-13 18:35:11 Off the coast of Iwate     30 3.61  
2021-06-13 20:58:22 Off the east coast of Aomori     60 3.52  
2021-06-14 09:08:25 Off the southeast coast of Nemuro Peninsula     50 3.42  
2021-06-15 15:18:34 Off the south coast of Tokaido     10 4.32  
2021-06-15 16:11:40 Off the northwest coast of Amami Oshima     10 4.42  
2021-06-16 03:03:10 Near the coast of Torishima     460 4.5Unkn 
2021-06-16 04:28:48 Off the coast of Kushiro     40 2.81  
2021-06-18 18:40:42 Near Iriomotejima     20 4.33  
2021-06-18 20:34:21 Off the southeast coast of Chiba     60 3.61  
2021-06-19 14:56:01 Off the coast of Fukushima     50 3.52  
2021-06-22 17:10:07 Near Kunashir     120 3.52  
2021-06-24 03:44:19 Off the southeast coast of Nemuro Peninsula     100 3.51  
2021-06-27 00:21:07 Off the coast of Fukushima     50 3.52  
2021-06-27 09:06:52 Off the coast of Iwate     10 3.51  
2021-06-28 15:13:53 Off the coast of Kushiro     70 3.62  
2021-06-29 14:55:49 Hyuganada     30 4.93  
2021-06-30 12:53:18 Off the coast of Fukushima     40 4.42  
2021-06-30 21:37:30 Off the east coast of Chiba     10 3.53  
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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