M6.0 earthquake 41 km WSW of Tambolaka, East Nusa Tenggara, Indonesia
A magnitude 6.0 earthquake struck 41 km WSW of Tambolaka, East Nusa Tenggara, Indonesia at 06:55 local time (22:55 UTC) on 4 Oct 2026, at a depth of 9 km, according to INGV. The solution is preliminary and may be revised.
Data: INGV · updated 2026-10-03 22:55 UTC · automatic solution
- Magnitude
- 6.0strong
moment magnitude (P wave) (Mwp) - Depth
- 8.6 km
- Status
- Automatic
- Origin time
- 2026-10-03 22:55:51 UTC
- Local: 4 Oct 2026, 06:55:51 (Asia/Makassar)
- Epicentre
- 9.598° S, 118.905° E
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Circles show this event and others within 126 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 |
|---|---|---|
| TambolakaEast Nusa Tenggara, Indonesia · pop. 35,790 | 41 km | VModerate |
| DompuWest Nusa Tenggara, Indonesia · pop. 54,987 | 127 km | IVLight |
| BimaWest Nusa Tenggara, Indonesia · pop. 165,113 | 128 km | IVLight |
| WaingapuEast Nusa Tenggara, Indonesia · pop. 35,932 | 149 km | IVLight |
| MataramWest Nusa Tenggara, Indonesia · pop. 441,147 | 326 km | IIIWeak |
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 375 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 INGV.
| Agency | Magnitude | Depth | Epicentre | Time offset | Status |
|---|---|---|---|---|---|
| INGVheadlineSURVEY-INGV-A via Istituto Nazionale di Geofisica e Vulcanologia | 6.0 Mwp | 8.6 km | 9.60° S, 118.91° E | – | Automatic |
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How big was it?
Can cause damage over tens of kilometres, depending on depth, local ground and how buildings are built.
It released roughly the energy of 15 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 9 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.
M6.0 releases about 32× the energy of M5.0, and its waves are about 10× taller on a seismogram. Energy: 15 kt of TNT vs 477 t of TNT.
Each square is the energy of one M5.0. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
1 later earthquake within 126 km; the largest was M5.9 16 h ago. Aftershock rates usually fall off roughly in proportion to 1/time.
Mainshock M6.0
1 later earthquake nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).
| Time after mainshock (hours) | Magnitude | Depth (km) |
|---|---|---|
| 0.00 | 5.9 | 46 |
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Reports on SeismoAtlas
No reports yet.
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Event id ingv47436392. First recorded here 4 Oct 2026, 13:58:42 UTC. Solutions: INGV (ingv:47436392). Cite as: SeismoAtlas, “M6.0 earthquake 41 km WSW of Tambolaka, East Nusa Tenggara, Indonesia”, https://seismoatlas.com/earthquake/ingv47436392-m6-0-earthquake-41-km-wsw-of-tambolaka-east-nusa-tenggara-indonesia, data from INGV.
JSON: /api/v1/events/ingv47436392. SeismoAtlas is not an official warning service.