J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-03-01 11:54:07 Off the coast of Tokachi     60 4.63  
2021-03-01 15:07:59 Off the coast of Fukushima     50 3.52  
2021-03-01 15:45:41 Off the coast of Fukushima     50 3.52  
2021-03-01 21:13:15 Off the southeast coast of Nemuro Peninsula     70 3.52  
2021-03-02 01:01:39 Off the east of Soya     320 3.5Unkn 
2021-03-02 10:50:40 Off the coast of Hachijojima     140 3.71  
2021-03-02 18:49:00 Off the coast of Fukushima     50 3.72  
2021-03-03 06:22:32 Off the southeast coast of Iturup     100 5.82  
2021-03-03 20:29:00 Off the east coast of Chiba     10 4.13  
2021-03-04 11:22:51 Off the east coast of Chiba     10 4.74  
2021-03-04 12:26:31 Off the east coast of Aomori     10 3.61  
2021-03-05 15:14:06 Off the coast of Uraga     70 4.63  
2021-03-05 20:50:41 Off the coast of Kushiro     40 3.72  
2021-03-06 08:47:18 Off the coast of Fukushima     60 3.51  
2021-03-06 10:53:51 Off the coast of Uraga     50 3.52  
2021-03-06 14:48:55 Near the coast of Amami Oshima     10 3.51  
2021-03-06 23:01:50 Off the west coast of Hokkaido     210 3.9Unkn 
2021-03-07 12:42:15 Off the coast of Ibaraki     50 3.82  
2021-03-07 21:44:27 Off the coast of Fukushima     40 3.72  
2021-03-08 14:58:27 Off the coast of Uraga     70 3.52  
2021-03-08 23:36:05 Off the coast of Fukushima     60 4.43  
2021-03-08 23:58:33 Off the coast of Fukushima     50 3.52  
2021-03-09 08:29:58 Off the coast of Miyagi     80 4.64  
2021-03-09 09:26:59 Central Sea of Japan     290 4.5Unkn 
2021-03-12 15:34:20 Off the coast of Ibaraki     50 3.82  
2021-03-13 02:24:10 Off the east coast of Aomori     10 3.52  
2021-03-13 07:05:38 Near the coast of Miyakojima     70 3.71  
2021-03-14 02:16:54 Off the coast of Iwate     20 4.12  
2021-03-14 10:11:25 Near the coast of Okinawa     10 3.61  
2021-03-17 08:23:19 Off the southeast coast of Nemuro Peninsula     50 3.72  
2021-03-17 17:28:49 Off the coast of Fukushima     50 53  
2021-03-17 20:11:12 Off the coast of Fukushima     50 3.82  
2021-03-19 01:32:17 Off the south coast of Tokaido     420 3.7Unkn 
2021-03-20 02:28:42 Off the south coast of the Boso Peninsula     40 3.62  
2021-03-20 09:26:26 Off the coast of Iwate     40 4.53  
2021-03-20 16:45:15 Near Southern Sakhalin     390 3.8Unkn 
2021-03-20 18:09:44 Off the coast of Miyagi     60 6.86 Lower  
2021-03-20 18:18:38 Off the coast of Miyagi     10 5.64  
2021-03-20 18:22:18 Off the coast of Miyagi     10 4.73  
2021-03-20 18:26:20 Off the coast of Miyagi     60 3.62  
2021-03-20 18:34:57 Off the coast of Miyagi     60 3.52  
2021-03-20 19:39:30 Off the coast of Miyagi     30 4.63  
2021-03-20 22:02:19 Off the coast of Miyagi     50 3.52  
2021-03-21 00:36:57 Off the coast of Miyagi     60 3.52  
2021-03-21 01:03:51 Near the coast of Tanegashima     10 4.63  
2021-03-21 01:41:16 Off the coast of Miyagi     50 3.72  
2021-03-21 04:33:33 Off the coast of Sanriku     10 3.81  
2021-03-21 06:56:37 Off the coast of Fukushima     50 3.92  
2021-03-23 00:06:00 Off the coast of Fukushima     50 3.52  
2021-03-23 15:42:15 Off the southeast coast of Mie     400 4.1Unkn 
2021-03-23 22:03:14 Near the coast of Okinawa     10 3.71  
2021-03-24 09:11:02 Off the coast of Fukushima     40 3.62  
2021-03-24 18:12:08 Off the southeast coast of Tanegashima     10 4.81  
2021-03-24 19:25:13 Off the coast of Miyagi     60 3.52  
2021-03-26 12:48:30 Off the coast of Uraga     50 4.53  
2021-03-26 21:07:47 Off the coast of Miyagi     50 3.52  
2021-03-27 07:02:17 Off the northeast coast of Miyakojima     90 63  
2021-03-27 07:46:27 Off the coast of Hachijojima     50 3.71  
2021-03-28 09:26:55 Off the coast of Hachijojima     60 5.33  
2021-03-28 11:40:57 Off the coast of Hachijojima     30 4.62  
2021-03-28 15:41:09 Near Taiwan     150 4.72  
2021-03-28 17:12:02 Off the coast of Uraga     60 4.53  
2021-03-29 04:39:01 Off the coast of Hachijojima     60 3.61  
2021-03-29 19:48:22 Off the coast of Hachijojima     50 3.61  
2021-03-31 23:19:23 Off the coast of Miyagi     60 3.32  
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