実際に観測した情報(電文で入手できたものに限る)
| 発生時刻 | 震央地名 | 北緯 | 東経 | 深さ | 規模 | 最大震度 | 最大長周期 地震動階級 | 
| 2024/12/27 21:47:00 | 千島列島 | 46.8˚N | 151.7˚E | 160km | M 6.7 | 2 | N/A | 
EventID: 20241227214855
作成官署: 気象庁本庁
検知時刻: 2024/12/27 21:48:55
| No. | 気象庁システム 発表時刻 | システム 受信時刻 | 検知からの 経過秒数 | 震源・EEW情報 | |||||||||
| 発生時刻 | 震央地名 | 北緯 | 東経 | 深さ | 規模 | 予測最大震度 | 予測最大長周期 地震動階級 | 精度 | 警報状態 | ||||
| 1 | 2024/12/27 21:49:05 | 21:49:05.767 | 10 | 2024/12/27 21:48:14 | 択捉島南東沖 | 44.6 | 148.6 | 10km | M 7.2 | 震度4程度 | 1程度 | RK44354 | |
| 2 | 2024/12/27 21:49:06 | 21:49:06.293 | 11 | 2024/12/27 21:48:01 | 千島列島 | 45.4 | 149.6 | 20km | M 7.5 | 震度3程度 | 1程度 | RK44354 | |
| 3 | 2024/12/27 21:49:06 | 21:49:06.703 | 11 | 2024/12/27 21:48:07 | 択捉島南東沖 | 45.1 | 149.3 | 120km | M 6.9 | 震度3程度 | 0程度 | RK44354 | |
| 4 | 2024/12/27 21:49:07 | 21:49:07.334 | 12 | 2024/12/27 21:48:01 | 千島列島 | 45.4 | 149.9 | 110km | M 7.0 | 震度3程度 | 0程度 | RK44354 | |
| 5 | 2024/12/27 21:49:07 | 21:49:08.010 | 13 | 2024/12/27 21:48:03 | 千島列島 | 45.2 | 149.6 | 160km | M 6.6 | N/A | N/A | RK44354 | |
| 6 | 2024/12/27 21:49:08 | 21:49:08.128 | 13 | 2024/12/27 21:48:03 | 千島列島 | 45.2 | 149.6 | 160km | M 6.6 | N/A | N/A | RK44454 | |
| 7 | 2024/12/27 21:49:11 | 21:49:11.793 | 16 | 2024/12/27 21:47:50 | 千島列島 | 45.7 | 150.7 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 8 | 2024/12/27 21:49:14 | 21:49:15.022 | 20 | 2024/12/27 21:47:55 | 千島列島 | 45.5 | 150.3 | 180km | M 6.9 | N/A | N/A | RK44454 | |
| 9 | 2024/12/27 21:49:15 | 21:49:15.724 | 20 | 2024/12/27 21:48:02 | 千島列島 | 45.2 | 149.6 | 180km | M 6.8 | N/A | N/A | RK44454 | |
| 10 | 2024/12/27 21:49:16 | 21:49:16.651 | 21 | 2024/12/27 21:47:52 | 千島列島 | 45.7 | 150.5 | 210km | M 7.0 | N/A | N/A | RK44454 | |
| 11 | 2024/12/27 21:49:19 | 21:49:19.380 | 24 | 2024/12/27 21:47:48 | 千島列島 | 45.8 | 150.9 | 210km | M 7.0 | N/A | N/A | RK44454 | |
| 12 | 2024/12/27 21:49:23 | 21:49:23.397 | 28 | 2024/12/27 21:47:59 | 千島列島 | 45.3 | 149.8 | 200km | M 6.9 | N/A | N/A | RK44454 | |
| 13 | 2024/12/27 21:49:24 | 21:49:24.464 | 29 | 2024/12/27 21:47:48 | 千島列島 | 45.8 | 150.8 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 14 | 2024/12/27 21:49:25 | 21:49:25.469 | 30 | 2024/12/27 21:47:51 | 千島列島 | 45.7 | 150.6 | 230km | M 7.0 | N/A | N/A | RK44454 | |
| 15 | 2024/12/27 21:49:33 | 21:49:33.555 | 38 | 2024/12/27 21:47:46 | 千島列島 | 45.8 | 151.0 | 220km | M 7.1 | N/A | N/A | RK44454 | |
| 16 | 2024/12/27 21:49:35 | 21:49:35.737 | 40 | 2024/12/27 21:47:59 | 千島列島 | 45.4 | 149.8 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 17 | 2024/12/27 21:49:36 | 21:49:36.798 | 41 | 2024/12/27 21:47:51 | 千島列島 | 45.7 | 150.6 | 210km | M 7.0 | N/A | N/A | RK44454 | |
| 18 | 2024/12/27 21:49:42 | 21:49:42.608 | 47 | 2024/12/27 21:47:59 | 千島列島 | 45.3 | 149.8 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 19 | 2024/12/27 21:49:42 | 21:49:43.206 | 48 | 2024/12/27 21:47:51 | 千島列島 | 45.7 | 150.6 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 20 | 2024/12/27 21:49:46 | 21:49:46.633 | 51 | 2024/12/27 21:47:57 | 千島列島 | 45.4 | 150.0 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 21 | 2024/12/27 21:49:47 | 21:49:47.788 | 52 | 2024/12/27 21:47:50 | 千島列島 | 45.7 | 150.6 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 22 | 2024/12/27 21:49:48 | 21:49:48.710 | 53 | 2024/12/27 21:48:00 | 千島列島 | 45.3 | 149.7 | 200km | M 6.8 | N/A | N/A | RK44454 | |
| 23 | 2024/12/27 21:49:49 | 21:49:49.628 | 54 | 2024/12/27 21:47:56 | 千島列島 | 45.5 | 150.1 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 24 | 2024/12/27 21:49:49 | 21:49:49.971 | 54 | 2024/12/27 21:47:52 | 千島列島 | 45.6 | 150.5 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 25 | 2024/12/27 21:49:50 | 21:49:50.301 | 55 | 2024/12/27 21:48:00 | 千島列島 | 45.3 | 149.7 | 210km | M 6.8 | N/A | N/A | RK44454 | |
| 26 | 2024/12/27 21:49:51 | 21:49:51.386 | 56 | 2024/12/27 21:47:56 | 千島列島 | 45.5 | 150.1 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 27 | 2024/12/27 21:49:52 | 21:49:52.411 | 57 | 2024/12/27 21:48:03 | 択捉島南東沖 | 45.2 | 149.5 | 200km | M 6.6 | N/A | N/A | RK44454 | |
| 28 | 2024/12/27 21:49:52 | 21:49:52.741 | 57 | 2024/12/27 21:47:51 | 千島列島 | 45.7 | 150.6 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 29 | 2024/12/27 21:49:52 | 21:49:53.011 | 58 | 2024/12/27 21:47:58 | 千島列島 | 45.4 | 149.9 | 210km | M 6.7 | N/A | N/A | RK44454 | |
| 30 | 2024/12/27 21:49:53 | 21:49:53.438 | 58 | 2024/12/27 21:47:51 | 千島列島 | 45.7 | 150.6 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 31 | 2024/12/27 21:49:53 | 21:49:53.950 | 58 | 2024/12/27 21:48:00 | 千島列島 | 45.3 | 149.7 | 210km | M 6.6 | N/A | N/A | RK44454 | |
| 32 | 2024/12/27 21:49:55 | 21:49:55.124 | 60 | 2024/12/27 21:47:55 | 千島列島 | 45.5 | 150.2 | 210km | M 6.9 | N/A | N/A | RK44454 | |
| 33 | 2024/12/27 21:49:55 | 21:49:55.773 | 60 | 2024/12/27 21:48:01 | 千島列島 | 45.2 | 149.6 | 200km | M 6.5 | N/A | N/A | RK44454 | |
| 34 | 2024/12/27 21:49:56 | 21:49:56.782 | 61 | 2024/12/27 21:47:52 | 千島列島 | 45.7 | 150.5 | 220km | M 7.0 | N/A | N/A | RK44454 | |
| 35 | 2024/12/27 21:50:00 | 21:50:00.980 | 65 | 2024/12/27 21:47:59 | 千島列島 | 45.3 | 149.9 | 200km | M 6.5 | N/A | N/A | RK44554 | |
| 36 | 2024/12/27 21:50:03 | 21:50:04.031 | 69 | 2024/12/27 21:47:54 | 千島列島 | 45.6 | 150.3 | 210km | M 6.6 | N/A | N/A | RK44554 | |
| 37 | 2024/12/27 21:50:04 | 21:50:04.420 | 69 | 2024/12/27 21:47:59 | 千島列島 | 45.4 | 149.8 | 200km | M 6.5 | N/A | N/A | RK44554 | |
| 38 | 2024/12/27 21:50:24 | 21:50:24.174 | 89 | 2024/12/27 21:47:58 | 千島列島 | 45.4 | 149.9 | 210km | M 6.6 | N/A | N/A | RK44554 | |
| 39 | 2024/12/27 21:50:31 | 21:50:31.252 | 96 | 2024/12/27 21:48:00 | 千島列島 | 45.3 | 149.7 | 210km | M 6.5 | N/A | N/A | RK44559 | |