Deep M6.6 earthquake strikes northwest Java, Indonesia on September 11, 2026

A deep M6.6 earthquake occurred at 21:23 UTC on September 11, 2026, approximately 115 km (71 miles) north-northeast of Teluknaga, Indonesia. The seismic event originated at a depth of 358.6 km (222.8 miles), placing it well within the deep earthquake classification.

The earthquake’s epicenter was located at coordinates 106.9°E, 5.1°S, placing it in the northwest region of Java, Indonesia, beneath a densely populated area home to several major towns and infrastructure. No immediate population centers are directly cited, but the region includes metropolitan Jakarta as well as smaller cities within the province of Banten and West Java.

Given the location, there are likely various critical infrastructures nearby, including airports serving Jakarta, major ports on the northwest coast of Java, and significant transportation networks connecting the island’s populous western corridor.

This event was not tsunamigenic. There is no tsunami threat associated with this earthquake, based on its location and available data.

The maximum estimated intensity reached was approximately IV on the Modified Mercalli Intensity scale. The significance index is 670 (on a scale that runs through 1,000), based on magnitude, intensity, and estimated impact.

Indonesia is located along the seismically active Pacific Ring of Fire, where the Indo-Australian Plate subducts beneath the Eurasian Plate, resulting in frequent strong and deep earthquakes across the region.

This information was last updated at 21:47 UTC on September 11, 2026.