Mild earthquakes recorded off Sumatra, Indonesia on Friday

Three mild earthquakes, with magnitudes ranging from 4.6 to 5.2, were recorded in the sea off Sumatra Island, Indonesia, on Friday (July 4), according to the Thai Meteorological Department.

The department’s Earthquake Observation Division reported that the first quake occurred at 12:33 p.m. in the sea north of Sumatra, registering a magnitude of 5.2 at a depth of 10 kilometres. The epicentre was located approximately 394 kilometres southwest of Phuket Province.



The second and third earthquakes occurred at 12:39 p.m. and 1:18 p.m., with magnitudes of 4.7 and 4.6, respectively. Both quakes were recorded at a depth of 10 kilometres, with epicentres located approximately 511 km and 542 km from Phuket, respectively.



The division confirmed there were no reports of tremors felt in Thailand as a result of these quakes. Authorities are closely monitoring the situation and have advised residents in affected areas to remain alert and prepared for any further developments.

For the latest updates on seismic activity, visit the division’s website at https://earthquake.tmd.go.th, follow its social media accounts under the name “EarthquakeTMD” (on Facebook, X, Telegram, YouTube, and TikTok), or download the “EarthquakeTMD” mobile application.

(2025/07/04-00:00)