M5.4 earthquake 128 km S of Wonosari, Yogyakarta, Indonesia
A magnitude 5.4 earthquake struck 128 km S of Wonosari, Yogyakarta, Indonesia at 21:44 local time (14:44 UTC) on 27 Oct 2026, at a depth of 10 km, according to USGS and GFZ.
Reported by 2 agencies · revised from M4.9 · 3 reports to USGS “Did You Feel It?”
Data: USGS, GFZ · updated 2026-10-28 16:17 UTC · reviewed
- Magnitude
- 5.4moderate
body-wave magnitude (mb)
revised from 4.9 - Depth
- 10 km
- Status
- Reviewed
- Origin time
- 2026-10-27 14:44:01 UTC
- Local: 27 Oct 2026, 21:44:01 (Asia/Jakarta)
- Epicentre
- 9.098° S, 110.386° E
Circles show this event and others within 63 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map
Nearby places
| Place | Distance | Est. shaking |
|---|---|---|
| WonosariYogyakarta, Indonesia · pop. 87,454 | 128 km | IIIWeak |
| PundongYogyakarta, Indonesia · pop. 24,081 | 128 km | IIIWeak |
| BambanglipuroYogyakarta, Indonesia · pop. 44,713 | 128 km | IIIWeak |
| SrandakanYogyakarta, Indonesia · pop. 29,529 | 130 km | IIIWeak |
| YogyakartaIndonesia · pop. 375,699 | 144 km | IIIWeak |
| SurakartaCentral Java, Indonesia · pop. 526,870 | 178 km | IIIWeak |
| CilacapCentral Java, Indonesia · pop. 256,996 | 215 km | IIWeak |
| KediriEast Java, Indonesia · pop. 301,424 | 229 km | IIWeak |
Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 196 km.
Every agency's solution
Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS, which has been reviewed by an analyst.
How big was it?
Felt by most people over a wide area. Can damage poorly built structures close to the epicentre.
It released roughly the energy of 1.9 kt of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.
M5.4 releases about 32× the energy of M4.4, and its waves are about 10× taller on a seismogram. Energy: 1.9 kt of TNT vs 60 t of TNT.
Each square is the energy of one M4.4. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
No later earthquakes have been recorded within 63 km so far. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Reports close 14 days after an earthquake.
Event id gfz2026vbkp. First recorded here 27 Oct 2026, 14:56:29 UTC. Solutions: GFZ (geofon:gfz2026vbkp); USGS (usgs:us7000ttgf). Cite as: SeismoAtlas, “M5.4 earthquake 128 km S of Wonosari, Yogyakarta, Indonesia”, https://seismoatlas.com/earthquake/gfz2026vbkp-m5-4-earthquake-128-km-s-of-wonosari-yogyakarta-indonesia, data from USGS, GFZ.
JSON: /api/v1/events/gfz2026vbkp. SeismoAtlas is not an official warning service.