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 12:14:04 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 12:14:04 UTC. This is spatial proximity, not an identified aftershock sequence.
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 12:14:04 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 12:14:04 UTC. This is spatial proximity, not an identified aftershock sequence.
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
Captured 2026-10-01 03:14:42 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 04:29:40 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 05:44:41 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 06:59:40 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 07:59:41 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 09:00:20 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 10:00:20 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 11:14:02 UTC
Updated capture · M4.6 · 116.392 km deep · 2 nearby records
Source updated 2026-10-01 01:50:10 UTC
Captured 2026-10-01 12:14:04 UTC
Updated 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