Very strong earthquake off East Coast of Honshu, Japan + dangerous 5.8 aftershock

Last update: February 17, 2015 at 9:45 am

Earthquake-report
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Update : The 5.8 aftershock near the coast was far more dangerous (due to the shaking danger) than the earlier M6.9 mainshock. JMA reported a 5+ intensity which is seen by Earthquake-report as potentially dangerous for damage.
JMA 5+    Hashikami-cho Dobutsu*
JMA 4    Hachinohe-shi Uchimaru*,  Hachinohe-shi Nangoku*, Sannohe-machi Zaifu-kojimachi*, Aomori Nambu-cho Tomabechi*, Aomori Nambu-cho Taira*
JMA5+ means :
* Many people find it difficult to walk without holding onto  something stable
* Dishes in cupboards and items on bookshelves are more likely to fall
* Unsecured furniture may topple over
* Unreinforced concrete-block walls may collapse

Update 01:04 UTC : Tsunami advisory is still in place but has NO damaging potential anymore.

Update 00:33 UTC : The Tsunami advisory is still in place . Below the latest data :
Miyako
Initial Tsunami Arrival Time    08:41 JST 17 Feb    Rise
Current Maximum Tsunami Observation    08:47 JST 17 Feb    0.1 m
Kamaishi
Initial Tsunami Arrival Time    08:35 JST 17 Feb    Rise
Current Maximum Tsunami Observation    08:38 JST 17 Feb    Slight
Kuji-ko
Initial Tsunami Arrival Time    08:48 JST 17 Feb    Rise
Current Maximum Tsunami Observation    #09:07 JST 17 Feb    0.2 m +

Update 00:01 UTC : A slight swell of 0.1 m has been measured in a couple of locations