Tsunami Information (Tsunami Observation)


Tsunami Information

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This Tsunami Information was issued in the past

Occurred at	14:46 JST 11 Mar 2011
Region name	Sanriku Oki
Depth	about 20 km
Magnitude	9.0

Initial Tsunami Observation

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Maximum Tsunami Observation

Tsunami Information NUMBER 64
(Tsunami Observations)

Issued at 18:05 JST 13 Mar 2011

Tsunami Observations
As of 18:00 JST
In some coastal regions, it is inferred that tsunamis higher than those recorded at observation sites have arrived.


Kushiro	Initial Tsunami	15:34 JST 11 Mar	(+)	2.0 m
	Maximum Tsunami	23:39 JST 11 Mar		2.1 m
Nemuro-shi Hanasaki	Initial Tsunami	15:34 JST 11 Mar	(-)	Slight
	Maximum Tsunami	15:57 JST 11 Mar		2.8 m
Nemuro-ko	Initial Tsunami	16:08 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	00:03 JST 12 Mar		0.7 m
Hamanaka-cho Kiritappu-ko	Initial Tsunami	15:27 JST 11 Mar	(-)	Slight
	Maximum Tsunami	22:19 JST 11 Mar		2.6 m
Urakawa	Initial Tsunami	15:19 JST 11 Mar	(-)	0.2 m
	Maximum Tsunami	16:42 JST 11 Mar		2.7 m
Tokachi-ko	Initial Tsunami	15:26 JST 11 Mar	(-)	0.2 m
	Maximum Tsunami	15:57 JST 11 Mar		2.8 m or more
Erimo-cho Shoya	Initial Tsunami	15:18 JST 11 Mar	(-)	0.1 m
	Maximum Tsunami	15:44 JST 11 Mar		3.5 m
Hakodate	Initial Tsunami	16:11 JST 11 Mar	(+)	1.9 m
	Maximum Tsunami	23:35 JST 11 Mar		2.4 m
Tomakomai-nishiko	Initial Tsunami	15:37 JST 11 Mar	(-)	0.2 m
	Maximum Tsunami	17:30 JST 11 Mar		2.1 m
Tomakomai-higashiko	Initial Tsunami	15:40 JST 11 Mar	(-)	0.2 m
	Maximum Tsunami	16:17 JST 11 Mar		2.5 m or more
Shiraoi-ko	Initial Tsunami	15:40 JST 11 Mar	(-)	0.1 m
	Maximum Tsunami	16:01 JST 11 Mar		1.8 m
Oshima Mori-ko	Initial Tsunami	15:56 JST 11 Mar	(-)	Slight
	Maximum Tsunami	19:37 JST 11 Mar		1.8 m
Muroran-ko	Initial Tsunami	15:56 JST 11 Mar	(-)	Slight
	Maximum Tsunami	20:06 JST 11 Mar		1.0 m
Wakkanai	Initial Tsunami	18:43 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	02:23 JST 12 Mar		0.4 m
Rumoi	Initial Tsunami			(*3)
	Maximum Tsunami	05:33 JST 12 Mar		0.3 m
Otaru	Initial Tsunami			(*3)
	Maximum Tsunami	03:25 JST 12 Mar		0.3 m
Ishikariwan-shinko	Initial Tsunami			(*3)
	Maximum Tsunami	01:07 JST 12 Mar		0.4 m
Iwanai-ko	Initial Tsunami			(*3)
	Maximum Tsunami	02:23 JST 12 Mar		0.3 m
Abashiri	Initial Tsunami	17:02 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	02:32 JST 12 Mar		0.3 m
Esashi-ko	Initial Tsunami	17:45 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:36 JST 11 Mar		0.4 m
Tappi	Initial Tsunami	16:09 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	16:32 JST 11 Mar		0.5 m
Hachinohe	Initial Tsunami	15:22 JST 11 Mar	(-)	0.8 m
	Maximum Tsunami	16:51 JST 11 Mar		2.7 m or more
Mutsu-shi Sekinehama	Initial Tsunami	15:20 JST 11 Mar	(-)	0.1 m
	Maximum Tsunami	18:16 JST 11 Mar		2.9 m
Miyako	Initial Tsunami	14:48 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	15:21 JST 11 Mar		4.0 m or more
Ofunato	Initial Tsunami	14:46 JST 11 Mar	(-)	0.2 m
	Maximum Tsunami	15:15 JST 11 Mar		3.2 m or more
Kamaishi	Initial Tsunami	14:45 JST 11 Mar	(-)	0.1 m
	Maximum Tsunami	15:21 JST 11 Mar		4.1 m or more
Iwate Kamaishi-oki*	Initial Tsunami	14:50 JST 11 Mar		Unknown
Iwate Miyako-oki*	Initial Tsunami	14:50 JST 11 Mar		Unknown
Iwate Kuji-oki*	Initial Tsunami	14:56 JST 11 Mar		Unknown
Ishinomaki-shi Ayukawa	Initial Tsunami	14:46 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	15:20 JST 11 Mar		3.3 m or more
Kesennuma Hirotawan-oki*	Initial Tsunami	14:54 JST 11 Mar		Unknown
Sakata	Initial Tsunami			(*3)
	Maximum Tsunami	00:55 JST 12 Mar		0.4 m
Soma	Initial Tsunami	14:55 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	15:50 JST 11 Mar		7.3 m or more
Fukushima Onahama-oki*	Initial Tsunami	14:52 JST 11 Mar		Unknown
Oarai	Initial Tsunami	15:15 JST 11 Mar	(+)	1.8 m
	Maximum Tsunami	16:52 JST 11 Mar		4.2 m
Choshi	Initial Tsunami	15:13 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	17:22 JST 11 Mar		2.4 m
Tateyama-shi Mera	Initial Tsunami	15:29 JST 11 Mar	(+)	1.3 m
	Maximum Tsunami	17:05 JST 11 Mar		1.6 m
Tokyo Harumi	Initial Tsunami	16:37 JST 11 Mar	(+)	0.8 m
	Maximum Tsunami	19:15 JST 11 Mar		1.3 m
Yokosuka	Initial Tsunami	15:52 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	17:16 JST 11 Mar		1.6 m
Chiba	Initial Tsunami	16:38 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	18:18 JST 11 Mar		0.9 m
Yokohama	Initial Tsunami	16:09 JST 11 Mar	(+)	0.8 m
	Maximum Tsunami	17:37 JST 11 Mar		1.6 m
Izu-oshima Okada	Initial Tsunami	14:52 JST 11 Mar	(-)	0.3 m
	Maximum Tsunami	15:49 JST 11 Mar		0.7 m
Miyakejima Tsubota	Initial Tsunami	15:26 JST 11 Mar		Unknown
	Maximum Tsunami	15:34 JST 11 Mar		0.8 m
Hachijojima Yaene	Initial Tsunami	15:40 JST 11 Mar	(+)	1.4 m
	Maximum Tsunami	15:48 JST 11 Mar		1.4 m
Kozushima Kozushima-ko	Initial Tsunami	15:40 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	00:30 JST 12 Mar		0.8 m
Miyakejima Ako	Initial Tsunami	15:27 JST 11 Mar	(+)	0.6 m
	Maximum Tsunami	15:39 JST 11 Mar		0.6 m
Hachijojima Kaminato	Initial Tsunami	15:35 JST 11 Mar	(+)	1.2 m
	Maximum Tsunami	15:45 JST 11 Mar		1.2 m
Chichijima Futami	Initial Tsunami	16:14 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	16:46 JST 11 Mar		1.8 m
Minami-torishima	Initial Tsunami	16:51 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	16:55 JST 11 Mar		0.5 m
Odawara	Initial Tsunami	15:33 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	15:48 JST 11 Mar		0.9 m
Niigata	Initial Tsunami	18:02 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	04:54 JST 12 Mar		0.2 m
Awashima	Initial Tsunami			(*3)
	Maximum Tsunami	21:05 JST 11 Mar		0.1 m
Kashiwazaki-shi Kujiranami	Initial Tsunami			(*3)
	Maximum Tsunami	22:19 JST 11 Mar		0.1 m
Sado-shi Washizaki	Initial Tsunami			(*3)
	Maximum Tsunami	00:56 JST 12 Mar		Slight
Toyama	Initial Tsunami	20:55 JST 11 Mar	(+)	Slight
	Maximum Tsunami	22:37 JST 11 Mar		0.1 m
Fushiki Toyama-ko Shinminato	Initial Tsunami	21:02 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	22:39 JST 11 Mar		0.1 m
Suzu-shi Nagahashi	Initial Tsunami			(*3)
	Maximum Tsunami	23:25 JST 11 Mar		0.1 m
Kanazawa	Initial Tsunami	21:56 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	12:54 JST 12 Mar		0.2 m
Tsuruga-ko	Initial Tsunami			(*3)
	Maximum Tsunami	13:58 JST 13 Mar		0.3 m
Numazu-shi Uchiura	Initial Tsunami	16:01 JST 11 Mar	(+)	1.4 m
	Maximum Tsunami	16:16 JST 11 Mar		1.4 m
Shimizu	Initial Tsunami	15:58 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	16:17 JST 11 Mar		0.9 m
Minami-izu-cho Irozaki	Initial Tsunami	15:43 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	15:56 JST 11 Mar		0.8 m
Omaezaki	Initial Tsunami	16:03 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	17:18 JST 11 Mar		1.4 m
Maisaka	Initial Tsunami	16:12 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	17:37 JST 11 Mar		0.8 m
Shimoda-ko	Initial Tsunami	15:41 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	22:55 JST 11 Mar		0.8 m
Ito	Initial Tsunami	15:30 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	15:52 JST 11 Mar		0.7 m
Nishiizu-cho Tago	Initial Tsunami	15:55 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	16:18 JST 11 Mar		0.4 m
Yaizu	Initial Tsunami	15:58 JST 11 Mar	(+)	0.8 m
	Maximum Tsunami	16:10 JST 11 Mar		0.8 m
Tahara-shi Akabane	Initial Tsunami	16:21 JST 11 Mar	(+)	1.1 m
	Maximum Tsunami	17:32 JST 11 Mar		1.6 m
Nagoya	Initial Tsunami	17:43 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	19:36 JST 11 Mar		1.0 m
Handa-shi Kinuura	Initial Tsunami	17:18 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	21:35 JST 11 Mar		0.7 m
Yokkaichi	Initial Tsunami	17:20 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	20:13 JST 11 Mar		0.5 m
Toyohashi-shi Mikawa-ko	Initial Tsunami	17:17 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	20:15 JST 11 Mar		0.6 m
Toba	Initial Tsunami	16:34 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	19:13 JST 11 Mar		1.8 m
Owase	Initial Tsunami	16:17 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	17:12 JST 11 Mar		1.7 m
Kumano-shi Yuki	Initial Tsunami	16:12 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	16:28 JST 11 Mar		0.7 m
Mie Owase-oki*	Initial Tsunami	16:07 JST 11 Mar		Unknown
Maizuru	Initial Tsunami			(*3)
	Maximum Tsunami	11:40 JST 13 Mar		0.3 m
Osaka Tempozan	Initial Tsunami	18:20 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	21:02 JST 11 Mar		0.6 m
Misaki-cho Tannowa	Initial Tsunami	17:30 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	17:59 JST 11 Mar		0.2 m
Toyooka-shi Tsuiyama	Initial Tsunami			(*3)
	Maximum Tsunami	01:03 JST 12 Mar		Slight
Kobe	Initial Tsunami	17:56 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	03:19 JST 12 Mar		0.3 m
Himeji	Initial Tsunami	18:30 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	20:46 JST 11 Mar		0.2 m
Sumoto	Initial Tsunami	17:20 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	17:37 JST 11 Mar		0.2 m
Nachi-katsuura-cho Uragami	Initial Tsunami	16:14 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	18:06 JST 11 Mar		1.3 m
Kushimoto-cho Fukuro-ko	Initial Tsunami	16:16 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	01:32 JST 12 Mar		1.4 m
Wakayama	Initial Tsunami	17:13 JST 11 Mar	(+)	0.6 m
	Maximum Tsunami	19:35 JST 11 Mar		0.7 m
Gobo-shi Haraido	Initial Tsunami	16:35 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	17:57 JST 11 Mar		1.1 m
Shirahama-cho Katata	Initial Tsunami	16:34 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	00:35 JST 12 Mar		1.0 m
Wakayama Shirahama-oki*	Initial Tsunami	16:25 JST 11 Mar		Unknown
Sakaiminato-shi Sakai	Initial Tsunami			(*3)
	Maximum Tsunami	05:03 JST 12 Mar		0.3 m
Hamada	Initial Tsunami			(*3)
	Maximum Tsunami	07:53 JST 12 Mar		0.1 m
Oki Saigo	Initial Tsunami			(*3)
	Maximum Tsunami	04:06 JST 12 Mar		0.1 m
Tamano-shi Uno	Initial Tsunami	18:29 JST 11 Mar	(+)	Slight
	Maximum Tsunami	20:01 JST 11 Mar		0.1 m
Hiroshima	Initial Tsunami	19:28 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	20:11 JST 11 Mar		0.3 m
Kure	Initial Tsunami	19:43 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	20:37 JST 11 Mar		0.3 m
Komatsushima	Initial Tsunami	17:03 JST 11 Mar	(+)	0.7 m
	Maximum Tsunami	19:50 JST 11 Mar		0.7 m
Tokushima Yuki	Initial Tsunami	16:37 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	20:27 JST 11 Mar		1.1 m
Takamatsu	Initial Tsunami	18:20 JST 11 Mar	(+)	Slight
	Maximum Tsunami	19:41 JST 11 Mar		0.2 m
Sakaide-shi Yoshima-ko	Initial Tsunami	19:38 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	13:33 JST 12 Mar		0.2 m
Tadotsu-ko	Initial Tsunami	19:56 JST 11 Mar	(+)	Slight
	Maximum Tsunami	11:25 JST 12 Mar		0.2 m
Uwajima	Initial Tsunami	17:42 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	07:10 JST 12 Mar		0.6 m
Matsuyama	Initial Tsunami	18:43 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:30 JST 11 Mar		0.2 m
Imabari-shi Oshima	Initial Tsunami	19:28 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	11:40 JST 12 Mar		0.1 m
Muroto-shi Muroto-misaki	Initial Tsunami	16:39 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	04:42 JST 12 Mar		0.6 m
Kochi	Initial Tsunami	16:56 JST 11 Mar	(+)	0.6 m
	Maximum Tsunami	21:26 JST 11 Mar		0.6 m
Tosa-shimizu	Initial Tsunami	16:56 JST 11 Mar	(+)	0.9 m
	Maximum Tsunami	01:58 JST 12 Mar		1.3 m
Susaki-ko	Initial Tsunami	17:00 JST 11 Mar	(+)	1.4 m
	Maximum Tsunami	20:59 JST 11 Mar		2.6 m
Shimonoseki-shi Haedomari-ko	Initial Tsunami	20:28 JST 11 Mar	(+)	Slight
	Maximum Tsunami	03:25 JST 12 Mar		0.1 m
Shimonoseki-shi Hikoshima-deshimatsu	Initial Tsunami	19:22 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:09 JST 11 Mar		0.4 m
Tokuyama	Initial Tsunami	18:41 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	08:06 JST 12 Mar		0.4 m
Ube-ko	Initial Tsunami	19:08 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	09:14 JST 12 Mar		0.3 m
Mitajiri Nakanoseki-ko	Initial Tsunami	18:42 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:39 JST 11 Mar		0.2 m
Shimonoseki-ko Chofu	Initial Tsunami	19:33 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	23:00 JST 11 Mar		0.4 m
Kitakyushu-shi Moji	Initial Tsunami	19:46 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:10 JST 11 Mar		0.4 m
Kanda-ko	Initial Tsunami	19:26 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	20:16 JST 11 Mar		0.3 m
Kitakyushu-ko Aohama	Initial Tsunami	19:21 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	23:04 JST 11 Mar		0.4 m
Fukuoka-shi Hakata	Initial Tsunami	21:06 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	02:12 JST 12 Mar		0.3 m
Kitakyushu-ko Hiagari	Initial Tsunami	20:06 JST 11 Mar	(+)	Slight
	Maximum Tsunami	23:10 JST 11 Mar		0.2 m
Tara-cho Ouranozaki	Initial Tsunami	19:32 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	08:00 JST 12 Mar		0.2 m
Misumi	Initial Tsunami	19:24 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	06:47 JST 12 Mar		0.1 m
Yatsushiro-ko	Initial Tsunami	19:49 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	20:17 JST 12 Mar		0.3 m
Amakusa-shi Hondo-ko	Initial Tsunami	19:08 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	21:05 JST 11 Mar		0.8 m
Kumamoto-ko	Initial Tsunami	19:41 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	22:30 JST 11 Mar		0.1 m
Karatsu-ko	Initial Tsunami	20:43 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	05:15 JST 12 Mar		0.2 m
Genkai-cho Kariya	Initial Tsunami			(*3)
	Maximum Tsunami	05:31 JST 12 Mar		0.3 m
Nagasaki	Initial Tsunami	18:55 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	21:20 JST 11 Mar		0.8 m
Kuchinotsu	Initial Tsunami	18:52 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	10:07 JST 12 Mar		0.2 m
Fukuejima Fukue-ko	Initial Tsunami	18:45 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	04:58 JST 12 Mar		0.3 m
Sasebo	Initial Tsunami	19:32 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	21:52 JST 11 Mar		0.7 m
Nagasaki-ko Kougo	Initial Tsunami	18:49 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	21:22 JST 11 Mar		0.6 m
Hirado-shi Tabira-ko	Initial Tsunami	19:36 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	21:56 JST 11 Mar		0.3 m
Reihoku-machi Tororo	Initial Tsunami	18:43 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	03:12 JST 12 Mar		0.3 m
Oita	Initial Tsunami	17:49 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	22:29 JST 11 Mar		0.4 m
Beppu-ko	Initial Tsunami	17:59 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	22:17 JST 11 Mar		0.5 m
Saiki-shi Matsuura	Initial Tsunami	17:22 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	17:41 JST 11 Mar		0.4 m
Hyuga-shi Hososhima	Initial Tsunami	16:54 JST 11 Mar	(+)	0.8 m
	Maximum Tsunami	21:47 JST 11 Mar		0.9 m
Nichinan-shi Aburatsu	Initial Tsunami	17:05 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	00:12 JST 12 Mar		1.1 m
Miyazaki-ko	Initial Tsunami	17:06 JST 11 Mar	(+)	1.4 m
	Maximum Tsunami	03:33 JST 12 Mar		1.6 m
Minami-osumi-cho Odomari	Initial Tsunami	17:29 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	06:51 JST 12 Mar		0.9 m
Shibushi-ko	Initial Tsunami	17:12 JST 11 Mar	(+)	1.1 m
	Maximum Tsunami	17:39 JST 11 Mar		1.1 m
Tanegashima Nishino-omote	Initial Tsunami	17:20 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	23:45 JST 11 Mar		0.8 m
Tanegashima Kumano	Initial Tsunami	16:52 JST 11 Mar	(+)	0.8 m
	Maximum Tsunami	03:23 JST 12 Mar		1.5 m
Nakanoshima	Initial Tsunami			(*3)
	Maximum Tsunami	05:29 JST 12 Mar		0.7 m
Amami-shi Kominato	Initial Tsunami	17:01 JST 11 Mar	(-)	0.1 m
	Maximum Tsunami	01:48 JST 12 Mar		1.2 m
Amami-shi Naze	Initial Tsunami	17:10 JST 11 Mar	(+)	0.4 m
	Maximum Tsunami	01:21 JST 12 Mar		0.5 m
Kagoshima	Initial Tsunami	18:19 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	04:47 JST 12 Mar		0.1 m
Makurazaki	Initial Tsunami	17:55 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	02:28 JST 12 Mar		0.8 m
Akune	Initial Tsunami	18:38 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	07:18 JST 12 Mar		0.5 m
Naha	Initial Tsunami	18:03 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	21:12 JST 11 Mar		0.6 m
Nanjo-shi Azama	Initial Tsunami	17:49 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	02:20 JST 12 Mar		0.4 m
Minami-daito-gyoko	Initial Tsunami	17:11 JST 11 Mar	(+)	0.2 m
	Maximum Tsunami	17:24 JST 11 Mar		0.2 m
Yonagunijima Kubura	Initial Tsunami	18:34 JST 11 Mar	(+)	0.1 m
	Maximum Tsunami	04:46 JST 12 Mar		0.2 m
Ishigakijima Ishigaki-ko	Initial Tsunami	18:25 JST 11 Mar	(+)	Slight
	Maximum Tsunami	07:01 JST 12 Mar		0.3 m
Miyakojima Hirara	Initial Tsunami	18:37 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	19:34 JST 11 Mar		0.7 m

*3 mark: Arrival of initial tsunami unconfirmed.

No Tsunami Warnings and Advisories are currently in effect. Pay attention when fishing, swimming or engaging in other activities in the above coastal regions, as there may be still sea-level changes for the time being.

Earthquake Information
Occurred at	14:46 JST 11 Mar 2011
Region name	SANRIKU OKI
Latitude	38.1N
Longitude	142.9E
Depth	about 20 km
Magnitude	9.0

*** [Tsunami Observed by offshore GPS buoys(marked with *)] ***

Please note that heights of all tsunamis observed by offshore GPS buoys are described as Unknown in the above text in order to avoid confusion with those observed by tidal stations in coastal areas.
Below are the details of tsunamis observed by offshore GPS buoys.

Iwate Kamaishi-oki*	Initial Tsunami	14:50 JST 11 Mar	(-)	0.3 m
	Maximum Tsunami	15:12 JST 11 Mar		6.8 m
Iwate Miyako-oki*	Initial Tsunami	14:50 JST 11 Mar	(-)	0.4 m
	Maximum Tsunami	15:12 JST 11 Mar		6.3 m
Iwate Kuji-oki*	Initial Tsunami	14:56 JST 11 Mar	(-)	0.4 m
	Maximum Tsunami			Arrival of maximum tsunami expected.
Kesennuma Hirotawan-oki*	Initial Tsunami	14:54 JST 11 Mar	(+)	6.0 m
	Maximum Tsunami	15:14 JST 11 Mar		6.0 m
Fukushima Onahama-oki*	Initial Tsunami	14:52 JST 11 Mar	(+)	1.0 m
	Maximum Tsunami	15:04 JST 11 Mar		1.0 m
Mie Owase-oki*	Initial Tsunami	16:07 JST 11 Mar	(+)	0.5 m
	Maximum Tsunami	16:26 JST 11 Mar		0.5 m
Wakayama Shirahama-oki*	Initial Tsunami	16:25 JST 11 Mar	(+)	0.3 m
	Maximum Tsunami	16:38 JST 11 Mar		0.3 m

All tsunamis described here were observed offshore, and are therefore expected to increase in size by the time they reach coastal areas.

** [Estimated tsunami heights and arrivals times at coastal areas near offshore GPS buoys] **
Below are the estimated tsunami heights and arrival times at coastal areas near offshore GPS buoys.

	Estimated Tsunami Arrival Time	Estimated Tsunami Height
Iwate Kamaishi	14:55 - 15:10 JST 10 Mar	6 m - 10 m or more
Iwate Miyako	14:55 - 15:10 JST 10 Mar	6 m - 10 m or more
Iwate Kuji	15:01 - 15:16 JST 11 Mar	1 m - 2 m
Kesennuma Hirotawan	14:59 - 15:14 JST 10 Mar	6 m - 10 m or more
Fukushima Onahama	14:57 - 15:12 JST 10 Mar	1 m - 4 m
Mie Owase	16:12 - 16:27 JST 11 Mar	1 m - 2 m
Wakayama Shirahama	16:30 - 16:45 JST 11 Mar	0.5 m

Tsunamis may have already arrived in some areas.

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