A magnitude 7.7 earthquake struck Indonesia on August 14, 2026, at 21:58:21 UTC, followed roughly 13 hours later by a magnitude 6.9 quake on August 15, according to the USGS.
The first quake's epicenter was 68 km north-northwest of Ende, at coordinates 8.310°S, 121.352°E. The USGS recorded its depth at 10.00 km (6.21 miles), placing it in the shallow range.
The second earthquake hit at 10:54:52 UTC on August 15, with its epicenter 7 km north-northwest of Pematangsiantar, at 3.018°N, 99.038°E. That quake was far deeper, with the USGS measuring its depth at 183.23 km (113.85 miles).
The two events struck separate parts of the Indonesian archipelago. Ende is a city on Flores island, while Pematangsiantar is located in North Sumatra.