Magnitude 6.8 earthquake off Sumatra, Indonesia

Headline via Reuters, no further details (tsunami risk etc) as yet.

More now:

• Depth 10km
• Other reports have it at M6.4

M6.4 says the USGS now:

• Depth 17.2km

There was a bigger earthquake earlier this year off Sumatra, a magnitude 7.8. There was a tsunami warning issued after that earthquake but so far I haven't seen one related to today's quake.

Oil traders will take particular note of Indonesian earthquakes, Indonesia is an oil producer and was significant exporter in the past, but imports oil now. The country is also a significant producer of natural gas.

more to come