Magnitude 5.9 Earthquake Jolts Thousand Islands Near Jakarta, No Tsunami Risk

A magnitude 5.9 earthquake jolted the Thousand Islands (Kepulauan Seribu), an archipelago north of Jakarta, on Saturday morning, September 12th. The tremor occurred at approximately 04:23 Western Indonesian Time (WIB), with its epicenter located 6 kilometers southeast of the Thousand Islands in the Jakarta Bay, at a considerable depth of 376 kilometers below sea level, according to the Meteorology, Climatology, and Geophysics Agency (BMKG). The BMKG promptly announced that the earthquake did not possess the potential to generate a tsunami. Despite its significant magnitude, the extreme depth of the hypocenter meant that the seismic waves reaching the surface were less intense than they would be for a shallower quake. Nevertheless, the shaking was perceptible across a wide area. Residents in the Thousand Islands reported feeling strong tremors, while the vibrations were also felt in the Greater Jakarta area, including Bogor. "Earthquake Mag: 5.9, Date-Time: 12-Sep-26 04:23:56 WIB, Location: 5.81 LS, 106.56 BT (6 km SE of KEPSERIBU-DKI), Depth: 376 Km, does not have the potential to cause a tsunami," the BMKG stated via its official X account. In a notable coincidence, several other earthquakes were registered shortly after the one near Jakarta. These included seismic events in Gunung Kidul, located in the Yogyakarta Special Region on the island of Java, and in Nagakeo, within the East Nusa Tenggara province on the island of Flores. This suggests a period of heightened seismic activity across different regions of the Indonesian archipelago. While the immediate impact of the Jakarta quake was minimal in terms of damage and casualties, deep earthquakes like this can serve as important indicators for seismologists studying the complex tectonic processes beneath Indonesia, a nation situated on the Pacific Ring of Fire.