A tectonic earthquake measuring magnitude 5.4 struck 136 km southwest of Gunungkidul, Special Region of Yogyakarta, and surrounding areas on October 27, 2026, at 21:43:13 WIB, according to the Meteorology, Climatology, and Geophysical Agency. The agency recorded the earthquake at a depth of 10 kilometers with an epicenter located at coordinates 9.20 South Latitude and 110.39 East Longitude.
Did You Know? Following the initial magnitude 5.4 tremor, the Meteorology, Climatology, and Geophysical Agency recorded a second earthquake at 21:46:12 WIB measuring magnitude 4.3, centered 90 kilometers south of Gunungkidul at a depth of 10 kilometers.
Geographic Reach and Felt Intensities Across Java
While the primary tremor registered a magnitude of 5.4, its shaking reached communities across multiple provinces in Java. Tirto.id reported that residents experienced the earthquake at MMI Scale II in Bantul, Sleman, Wonogiri, Kulon Progo, Sukoharjo, Trenggalek, Nganjuk, Pacitan, Klaten, Kediri, Ponorogo, Banjarnegara, Lumajang, and Blitar. At this intensity scale, getaran are felt by a few people resting indoors, and lightweight hanging objects such as chandeliers may sway slightly without causing structural damage.
Social media users on X noted a distinct difference between the primary event and subsequent activity. Accounts such as @ameliaaaMut observed that the initial magnitude 5.4 earthquake was felt strongly, while the subsequent magnitude 4.3 tremor was barely perceptible.
Officials confirm no tsunami threat after earthquake
Based on the epicenter location and magnitude, the Meteorology, Climatology, and Geophysical Agency confirmed that the tectonic event carried no potential for a tsunami. Beritasatu.com noted that official announcements urged residents to remain calm, exercise caution regarding potential aftershocks, and disregard unverified information circulating online.
Authorities advised individuals to protect their heads, shelter under sturdy furniture indoors, stay clear of glass and falling objects, and move to open areas once shaking stops. Motorists were instructed to reduce speed and park in secure locations away from large trees, cliffs, power poles, and damaged structures.
Info Gempa Mag:5.4, 27-Okt-26 21:43:13 WIB, Lok:9.20 LS, 110.39 BT (136 km BaratDaya GUNUNGKIDUL-DIY), Kedlmn:10 Km ::BMKG pic.twitter.com/NQVKXn1ciH
Details on earthquake depth and structural damage
Did the earthquake cause any building damage or casualties?
Up to the initial reporting period, no reports of structural damage or casualties had emerged from the affected regions.
How deep was the primary earthquake off the coast of Gunungkidul?
The Meteorology, Climatology, and Geophysical Agency recorded the depth of the magnitude 5.4 earthquake at 10 kilometers.
/data/photo/2025/12/12/693b9309a9106.jpg "Photo: Kompas")
Where can residents verify official earthquake updates?
Residents can check the official website of the Meteorology, Climatology, and Geophysical Agency for stabilized and verified data updates.
Which nearby region felt the initial tremor most acutely during the late-night hours?
Worth a look