Another earthquake in Japan - Iburi area

A shaky time in Japan with this tremor report earlier:

• Magnitude 7 earthquake hits off the coast of Japan, southeast of Sapporo

This one now off the coast closer to Tokyo, pic via JMA

• Magnitude 5.4 reported
• It hit at just after 6am Tokyo time
• Depth at 36km

Its the magnitude 7 and higher that are the big cause for concerns in Japan (says me safely in non-shaky Australia).

Japan has been steadily shaking the past hours, check this out:

The latest one is at the top of this list.