Reported by BMKG today.
It is the 16th strongest of the 68 detections recorded within 20 km of this point since 19 August 2026. Another comparable one was recorded here earlier the same day.
What the source measured
BMKG reported: Pusat gempa berada di laut 46 km Utara Ruteng · Felt: III Kab. Manggarai
BMKG recorded magnitude 4.6 at a depth of 7 km.
The seismic region given by the source is Pusat gempa berada di laut 46 km Utara Ruteng.
Nearby, since 19 August 2026
- September 4, 2026 · score 5 · 0.0 km
- August 31, 2026 · score 0 · 4.6 km
- August 31, 2026 · score 2 · 4.6 km
How we know
Confirmed by 3 independent sources, including BMKG.
Our own score for this event is 5 out of 100, at 72 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Low |
| Calamity Score (ours) | 5 / 100 |
| Our confidence | 72% |
| Coordinates | -8.2300, 120.6200 |
| Nearest City | Ruteng (46 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T23:17:46.000Z |
| Source | https://www.bmkg.go.id/tews.html |
Score Breakdown
Technical Details
| Mag | 4.6 |
| Depth | 7 |
| Region | Pusat gempa berada di laut 46 km Utara Ruteng |
| TsunamiPotential | true |
| Felt | III Kab. Manggarai |
| Usgs Mag | 4.5 |
| Usgs Depth | 10 |
| Usgs Tsunami | false |
| Usgs Sig | 312 |
| Emsc Mag | 4.4 |
| Emsc Depth | -10 |
| Emsc MagType | m |
| Emsc Region | FLORES REGION, INDONESIA |
| Emsc Auth | BMKG |
| Emsc SourceId | 2055942 |
| MergedSources | [{"id":"usgs_us7000tefr","source":"usgs","severity":"low","severityValue":27,"timestamp":1788563868392,"latitude":-8.2997,"longitude":120.6133},{"id":"emsc_20260904_0000334","source":"emsc","severity":"low","severityValue":26.400000000000002,"timestamp":1788563868000,"latitude":-8.27,"longitude":120.55}] |
Safety Information
If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens in this area?
Calamity.live data shows a earthquake event with CalamityScore 5/100, in Indonesia (Indonesia), based on data from bmkg. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.