Earth tremors have been felt in some areas of Sri Lanka, including Colombo & Kandy. The images here are from USGS Earthquake Hazards Program.
According to USGS,
Time: at 04:27:28 (UTC)
at 10:27:28 am local time at epicenter
at 09:57:28 am Colombo, Sri Lanka
Location: 6.548°N, 84.455°E (In bay of Bengal)
Distance: 510 km (315 miles) E of Colombo, Sri Lanka
More details visit here Magnitude 5.2 - BAY OF BENGAL
I couldn't find any details regarding any Tsunami Warnings at the time of posting.
The relevant links are: