M5.2 Earthquake in Flores Not Tsunami-Prone, BMKG Reports

An M5.2 tectonic earthquake struck the Flores region of Nusa Tenggara Timur on Saturday, August 22, 2026, at 09:31:01 WITA. The Meteorology, Climatology, and Geophysics Agency (BMKG) reported that the earthquake is not expected to generate a tsunami.

This seismic event is part of a series of aftershocks following a significant M7.7 earthquake that hit the Flores region on August 15, 2026. BMKG's updated analysis indicates the earthquake has a magnitude of M5.1 at a depth of 16 km. Modeling has confirmed that this particular tremor poses no tsunami risk.

The epicenter was located at 8.07°S latitude and 120.66°E longitude, approximately 64 km northeast of Ruteng in Manggarai, NTT. BMKG classifies this as a shallow earthquake, likely caused by activity along the Flores Back-Arc Thrust, with a thrust fault mechanism.

The earthquake's intensity was felt with a scale of IV MMI in areas including Lamba Leda and Sambi Rampas in East Manggarai, and Reok in Manggarai. Residents in these areas reported feeling the tremors, which occurred during daylight hours. Minor damage, such as cracked buildings, has been reported in some locations.

As of Saturday morning, BMKG's monitoring has recorded 5,089 aftershocks since the August 15th event, with the largest being an M6.2. BMKG continues to monitor seismic activity and urges the public to remain calm, disregard unverified information, and avoid damaged structures.