J1 Earthquake Early Warning
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Quake Time Epicenter     Depth Magnitude Intensity Remarks
2021-04-01 08:07:46 Hachijo-jima     180 3.6Unkn 
2021-04-01 12:17:51 Off the east of Soya     310 4.1Unkn 
2021-04-01 13:30:03 Off the east coast of Aomori     80 4.12  
2021-04-01 15:19:29 Off the coast of Miyagi     60 3.52  
2021-04-01 18:09:55 Off the coast of Kushiro     30 3.72  
2021-04-03 01:36:30 Off the coast of Fukushima     50 3.82  
2021-04-03 21:58:25 Off the coast of Miyagi     40 4.63  
2021-04-04 20:27:53 Near the coast of Okinawa     40 4.23  
2021-04-05 06:21:59 Enshu     40 4.23  
2021-04-05 09:31:48 Off the coast of Hachijojima     40 4.62  
2021-04-06 18:33:03 Off the coast of Kushiro     90 3.51  
2021-04-07 01:44:15 Off the southeast coast of Nemuro Peninsula     40 4.63  
2021-04-07 05:10:28 Off the coast of Miyagi     10 3.51  
2021-04-11 02:08:21 Near the coast of Tokara Islands     10 4Unkn 
2021-04-11 04:07:21 Near the coast of Tokara Islands     10 4Unkn 
2021-04-11 05:20:40 Near the coast of Tokara Islands     10 3.9Unkn 
2021-04-11 05:40:37 Near the coast of Tokara Islands     10 4.53  
2021-04-11 08:00:20 Near the coast of Tokara Islands     10 4.3Unkn 
2021-04-11 15:39:45 Off the southeast coast of Nemuro Peninsula     50 3.92  
2021-04-11 19:01:11 Near the coast of Tokara Islands     10 4.3Unkn 
2021-04-11 20:09:17 Near the coast of Tokara Islands     10 4.3Unkn 
2021-04-11 21:00:15 Off the northwest coast of Amami Oshima     10 4.52  
2021-04-11 21:14:13 Near the coast of Tokara Islands     10 4.7Unkn 
2021-04-12 01:59:54 Off the coast of Fukushima     40 3.62  
2021-04-12 23:01:39 Off the northwest coast of Amami Oshima     10 5.93  
2021-04-13 12:52:51 Off the northwest coast of Amami Oshima     10 4.52  
2021-04-14 12:27:45 Off the east coast of Aomori     50 4.12  
2021-04-15 20:23:49 Off the east coast of Aomori     70 3.82  
2021-04-16 04:28:57 Off the coast of Akita     10 4.63  
2021-04-16 05:47:51 Uchinoura Bay     10 4.84  
2021-04-16 08:33:06 Off the coast of Akita     10 4.8Unkn 
2021-04-16 17:55:02 Hyuganada     30 3.52  
2021-04-16 20:51:38 Off the coast of Miyagi     50 3.82  
2021-04-17 00:11:53 Near Iriomotejima     20 3.82  
2021-04-18 09:25:09 Off the coast of Sanriku     10 3.6Unkn 
2021-04-18 09:29:12 Off the coast of Miyagi     30 5.64  
2021-04-18 10:00:58 Off the coast of Fukushima     50 3.52  
2021-04-19 13:06:22 Off the coast of Miyagi     60 4.53  
2021-04-19 20:22:27 Off the coast of Fukushima     20 3.51  
2021-04-20 03:10:16 Off the coast of Fukushima     50 3.82  
2021-04-21 16:28:01 Off the coast of Fukushima     50 3.52  
2021-04-21 17:13:06 Near the coast of Okinawa     10 3.62  
2021-04-21 21:29:49 Izu Oshima     10 3.93  
2021-04-23 04:23:25 Off the southeast coast of Mie     400 3.6Unkn 
2021-04-23 09:49:55 Off the coast of Miyagi     30 3.52  
2021-04-23 14:12:19 Off the coast of Fukushima     60 4.53  
2021-04-23 16:26:41 Near the coast of Tanegashima     30 4.33  
2021-04-24 06:34:14 Off the coast of Miyagi     60 3.52  
2021-04-24 18:35:12 Off the coast of Iwate     50 4.43  
2021-04-28 05:17:58 Near the coast of Chichijima     10 4.13  
2021-04-28 12:08:02 Off the coast of Miyagi     10 3.61  
2021-04-30 00:39:32 Off the east coast of Aomori     10 3.61  
2021-04-30 15:40:14 Off the coast of Iwate     50 3.52  
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