6.4 Magnitude Earthquake Off Northern Sumatra—No Thailand Impact
A 6.4 magnitude earthquake struck off northern Sumatra on August 15, but Thailand's Meteorology Department confirmed no impact to the region.
A magnitude 6.4 earthquake struck off northern Sumatra, Indonesia, with the Meteorology Department confirming it poses no threat to Thailand. The earthquake occurred on August 15, 2025 at 5:54 p.m., with its epicenter located at latitude 2.98 degrees north and longitude 99.0606 degrees east at a depth of 168 kilometers. The impact zone near the epicenter is expected to experience intensity level 8 on the Modified Mercalli scale, potentially causing severe building damage and partial structural collapse. The Meteorology Department noted that the magnitude and location of this earthquake do not meet the threshold for Cell Broadcast emergency alert notification. The announcement was issued at 6:06 p.m. by Sukanya Yawinchai, Director-General of the Meteorology Department.
