m7.3 earthquake off western Sumatra, 4:36pm

Feeling giddy? USGS National Earthquake Information Center reports a 7.3 magnitude earthquake 160 km south-southwest of Padang, Sumatra, Indonesia in the Mentawai region at 08:36:35 UTC (1636hrs SST).

I don’t think I felt it although I’ve been a little light-headed; it was Alvin who SMS-ed me. I wonder if Adrian felt it – he has quite the record for alerting me to earthquakes. 24 people from Singapore have reported weak shaking.

See NEA’s webpage: Regional Earthquake Alert.