J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2020-12-01 06:51:40 Off the northwest coast of Amami Oshima     10 3.71  
2020-12-01 07:54:58 Off the west coast of Sakhalin     410 6.7Unkn 
2020-12-01 08:07:44 Off the northwest coast of Amami Oshima     10 3.51  
2020-12-02 02:11:52 Off the coast of Sanriku     10 4.32  
2020-12-03 23:46:17 Near Kunashir     130 3.41  
2020-12-05 13:57:43 Off the coast of Uraga     70 4.42  
2020-12-06 13:06:50 Off the coast of Hachijojima     50 5.32  
2020-12-10 22:19:57 Near Taiwan     80 6.44  
2020-12-11 03:15:05 Near Taiwan     10 4.92  
2020-12-11 18:48:43 Near the coast of Miyakojima     20 5.13  
2020-12-11 21:58:10 Near the coast of Miyakojima     30 3.62  
2020-12-11 22:35:18 Off the coast of Fukushima     10 3.61  
2020-12-12 16:18:54 Off the coast of Iwate     40 5.35 Lower  
2020-12-16 00:35:24 Off the coast of Sanriku     10 4.31  
2020-12-16 10:28:07 Off the coast of Kushiro     60 4.93  
2020-12-16 13:58:57 Off the coast of Fukushima     50 3.72  
2020-12-17 19:18:35 Near the coast of Okinawa     10 4.42  
2020-12-18 08:03:10 Off the coast of Ibaraki     100 3.92  
2020-12-18 12:21:31 Off the south coast of Tokaido     410 3.5Unkn 
2020-12-18 14:24:06 Hyuganada     20 3.52  
2020-12-18 18:09:41 Izu Oshima     10 3.93  
2020-12-18 18:10:06 Suruga Bay     30 4.23  
2020-12-18 18:49:22 Niijima-Kozu     10 3.63  
2020-12-18 19:11:37 Niijima-Kozu     10 3.43  
2020-12-18 20:20:38 Izu Oshima     10 4.53  
2020-12-18 20:23:08 Niijima-Kozu     10 3.62  
2020-12-18 20:36:33 Niijima-Kozu     10 5.14  
2020-12-18 20:39:49 Izu Oshima     10 3.83  
2020-12-20 01:31:52 Niijima-Kozu     10 3.43  
2020-12-20 10:54:13 Off the coast of Hachijojima     10 4.3Unkn 
2020-12-20 18:35:45 Off the coast of Miyagi     30 4.42  
2020-12-20 20:52:20 Niijima-Kozu     10 3.52  
2020-12-21 00:39:11 Niijima-Kozu     10 4.64  
2020-12-21 02:22:51 Niijima-Kozu     10 4.33  
2020-12-21 02:23:22 Off the east coast of Aomori     40 6.14  
2020-12-28 20:37:33 Near Iriomotejima     40 4.22  
2020-12-28 21:26:31 Off the southeast coast of Mie     390 3.7Unkn 
2020-12-29 01:15:21 Off the coast of Fukushima     60 4.32  
2020-12-29 04:23:22 Off the south coast of Yakayama     430 4.3Unkn 
2020-12-31 05:11:01 Off the coast of Miyagi     40 3.31  
2020-12-31 23:45:37 Off the coast of Kushiro     50 3.82  
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