Earthquakes / EVENT RECORD
M 4.6 - 45 km ENE of Luwuk, Indonesia
USGS · Every measurement below belongs to the selected record.
Around the epicentre
Regional view · markers are locations, not affected areas
Magnitude
M 4.6
Scale: mb
Depth
116.392 km
from location
Reported by people
Not published
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 4.6 earthquake in 45 km ENE of Luwuk, Indonesia, at a depth of 116.392 km.
Detailed source data captured 2026-10-01 01:59:41 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-10-01 01:31:23.443 UTC
- Source updated (UTC)
- 2026-10-01 01:50:10.040 UTC
- Location
- -0.863°, 123.184°
- Stations used for location
- 30
- Horizontal error
- 9.79 km
- Depth error
- 7.152 km
- Magnitude error
- 0.105
Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.
Shaking & impact
- Instrumental intensity
- Not published
- Felt-report intensity
- Not published
- PAGER impact alert
- Not published
No published assessment does not mean no shaking or no impact. A magnitude value alone cannot establish damage or a tsunami warning.
Nearby seismic activity
Within 500 km · M2.5+ · seven days before the event through the latest query, up to seven days after
09-24
1
09-25
0
09-26
0
09-27
0
09-28
0
09-29
0
09-30
1
10-01
0
Query window: 2026-09-24 01:31:23 to 2026-10-01 01:59:41 UTC. This is spatial proximity, not an identified aftershock sequence.
Magnitude
M 4.6
Magnitude type not in saved summary
Depth
116.392 km
Source-reported depth
Reported by people
Not published
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
Magnitude 4.6, depth 116.392 km. reviewed by USGS.
This edition saved summary measurements only. Detail gathered later is not presented as if it were available in that snapshot.
Measurements & confidence
- Event time (UTC)
- 2026-10-01 01:31:23.443 UTC
- Source updated (UTC)
- 2026-10-01 01:50:10.040 UTC
- Location
- -0.863°, 123.184°
- Stations used for location
- Not published
- Horizontal error
- Not published
- Depth error
- Not published
- Magnitude error
- Not published
Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.
Shaking & impact
- Instrumental intensity
- Not published
- Felt-report intensity
- Not published
- PAGER impact alert
- Not published
No published assessment does not mean no shaking or no impact. A magnitude value alone cannot establish damage or a tsunami warning.
Nearby seismic activity
Within 500 km · M2.5+ · seven days before the event through the latest query, up to seven days after
Nearby activity was not captured for this view. It is not counted as zero.
The record as it develops
This timeline begins when our journal started capturing details. It is not a complete USGS revision history.
Captured 2026-10-01 01:59:41 UTC
First detailed capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Magnitude is not shaking
Magnitude describes the earthquake’s size. The shaking experienced at a place depends on distance, depth, local ground conditions and the rupture.
Depth needs context
A reported depth describes the location of the earthquake underground. Some solutions use an assigned depth; uncertainty and review status matter.
Nearby does not mean aftershock
Our regional search finds events by distance and time. Establishing an aftershock sequence requires seismological assessment.
This is a source-linked archive. Source measurements and assessments can change. An archived bulletin is not evidence that a warning is currently active.
In the daily journal
1 October 2026 ↗SOURCE ID usgs:us6000typ0