Earthquakes / EVENT RECORD
M 5.0 - 27 km N of Kupang, Indonesia
USGS · Every measurement below belongs to the selected record.
Around the epicentre
Regional view · markers are locations, not affected areas
Magnitude
M 5
Scale: mb
Depth
19.368 km
from location
Reported by people
1
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 5 earthquake in 27 km N of Kupang, Indonesia, at a depth of 19.368 km.
Detailed source data captured 2026-09-30 22:14:41 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-09-30 10:58:50.586 UTC
- Source updated (UTC)
- 2026-09-30 11:29:44.285 UTC
- Location
- -9.924°, 123.646°
- Stations used for location
- 68
- Horizontal error
- 8.82 km
- Depth error
- 4.375 km
- Magnitude error
- 0.073
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
- 3.4 CDI
- 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
09-23
0
09-24
0
09-25
2
09-26
2
09-27
1
09-28
0
09-29
1
09-30
0
Query window: 2026-09-23 10:58:50 to 2026-09-30 22:14:41 UTC. This is spatial proximity, not an identified aftershock sequence.
Magnitude
M 5
Scale: mb
Depth
19.368 km
from location
Reported by people
1
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 5 earthquake in 27 km N of Kupang, Indonesia, at a depth of 19.368 km.
Detailed source data captured 2026-09-30 22:14:41 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-09-30 10:58:50.586 UTC
- Source updated (UTC)
- 2026-09-30 11:29:44.285 UTC
- Location
- -9.924°, 123.646°
- Stations used for location
- 68
- Horizontal error
- 8.82 km
- Depth error
- 4.375 km
- Magnitude error
- 0.073
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
- 3.4 CDI
- 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
09-23
0
09-24
0
09-25
2
09-26
2
09-27
1
09-28
0
09-29
1
09-30
0
Query window: 2026-09-23 10:58:50 to 2026-09-30 22:14:41 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 2026-09-30 11:27:07 UTC
First detailed capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:21:02 UTC
Captured 2026-09-30 11:41:59 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 12:56:57 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 14:14:40 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 15:14:47 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 16:29:40 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 17:29:41 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 18:44:40 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 19:44:42 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 20:59:42 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 UTC
Captured 2026-09-30 22:14:41 UTC
Updated capture · M5 · 19.368 km deep · 6 nearby records
Source updated 2026-09-30 11:29:44 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
30 September 2026 ↗SOURCE ID usgs:us6000tyjb