Earthquakes / EVENT RECORD
M 5.6 - 43 km NNW of Lake Minchumina, Alaska
USGS · Every measurement below belongs to the selected record.
Read the source-series history ↗Around the epicentre
Regional view · markers are locations, not affected areas
Magnitude
M 5.6
Scale: ml
Depth
4.5 km
Source-reported depth
Reported by people
106
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 5.6 earthquake in 43 km NNW of Lake Minchumina, Alaska, at a depth of 4.5 km.
Detailed source data captured 2026-10-16 23:47:43 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-10-15 11:07:01.800 UTC
- Source updated (UTC)
- 2026-10-16 15:55:01.775 UTC
- Location
- 64.220°, -152.746°
- Stations used for location
- 209
- Horizontal error
- 1.8 km
- Depth error
- 2.0895 km
- Magnitude error
- 0.3
Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.
Shaking & impact
- Instrumental intensity
- 7.049 MMI
- Felt-report intensity
- 4.8 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
10-08
0
10-09
9
10-10
1
10-11
5
10-12
6
10-13
3
10-14
4
10-15
9
10-16
11
Query window: 2026-10-08 11:07:01 to 2026-10-16 23:47:43 UTC. This is spatial proximity, not an identified aftershock sequence.
Magnitude
M 5.6
Scale: ml
Depth
4.5 km
Source-reported depth
Reported by people
106
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 5.6 earthquake in 43 km NNW of Lake Minchumina, Alaska, at a depth of 4.5 km.
Detailed source data captured 2026-10-16 23:47:43 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-10-15 11:07:01.800 UTC
- Source updated (UTC)
- 2026-10-16 15:55:01.775 UTC
- Location
- 64.220°, -152.746°
- Stations used for location
- 209
- Horizontal error
- 1.8 km
- Depth error
- 2.0895 km
- Magnitude error
- 0.3
Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.
Shaking & impact
- Instrumental intensity
- 7.049 MMI
- Felt-report intensity
- 4.8 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
10-08
0
10-09
9
10-10
1
10-11
5
10-12
6
10-13
3
10-14
4
10-15
9
10-16
11
Query window: 2026-10-08 11:07:01 to 2026-10-16 23:47:43 UTC. This is spatial proximity, not an identified aftershock sequence.
Magnitude
M 5.6
Scale: ml
Depth
4.5 km
Source-reported depth
Reported by people
106
Number of felt reports
USGS review
reviewed
Review does not imply final measurements
What the record tells us
USGS reports a magnitude 5.6 earthquake in 43 km NNW of Lake Minchumina, Alaska, at a depth of 4.5 km.
Detailed source data captured 2026-10-16 22:32:45 UTC.
Measurements & confidence
- Event time (UTC)
- 2026-10-15 11:07:01.800 UTC
- Source updated (UTC)
- 2026-10-16 15:55:01.775 UTC
- Location
- 64.220°, -152.746°
- Stations used for location
- 209
- Horizontal error
- 1.8 km
- Depth error
- 2.0895 km
- Magnitude error
- 0.3
Errors are the source’s reported uncertainty estimates, not guaranteed bounds. A depth marked “operator assigned” was fixed during analysis.
Shaking & impact
- Instrumental intensity
- 7.049 MMI
- Felt-report intensity
- 4.8 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
10-08
0
10-09
9
10-10
1
10-11
5
10-12
6
10-13
3
10-14
4
10-15
9
10-16
11
Query window: 2026-10-08 11:07:01 to 2026-10-16 22:32:45 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 2026-10-15 11:13:57 UTC
First detailed capture · M5.6 · 0.8 km deep · 29 nearby records
Source updated 2026-10-15 11:13:10 UTC
Captured 2026-10-15 11:28:52 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 11:27:15 UTC
Captured 2026-10-15 11:43:50 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 11:43:02 UTC
Captured 2026-10-15 11:58:50 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 11:47:15 UTC
Captured 2026-10-15 12:13:52 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 12:10:48 UTC
Captured 2026-10-15 12:28:50 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 12:24:59 UTC
Captured 2026-10-15 12:43:50 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 12:40:56 UTC
Captured 2026-10-15 12:58:51 UTC
Updated capture · M5.6 · 4.5 km deep · 29 nearby records
Source updated 2026-10-15 12:54:16 UTC
Captured 2026-10-15 13:28:50 UTC
Updated capture · M5.6 · 4.5 km deep · 30 nearby records
Source updated 2026-10-15 13:17:47 UTC
Captured 2026-10-15 13:43:51 UTC
Updated capture · M5.6 · 4.5 km deep · 30 nearby records
Source updated 2026-10-15 13:39:29 UTC
Captured 2026-10-15 13:58:52 UTC
Updated capture · M5.6 · 4.5 km deep · 30 nearby records
Source updated 2026-10-15 13:47:04 UTC
Captured 2026-10-15 14:43:51 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 14:29:42 UTC
Captured 2026-10-15 14:58:52 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 14:47:11 UTC
Captured 2026-10-15 15:13:55 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 15:12:45 UTC
Captured 2026-10-15 15:28:50 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 15:17:24 UTC
Captured 2026-10-15 15:43:53 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 15:31:43 UTC
Captured 2026-10-15 15:58:50 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 15:52:37 UTC
Captured 2026-10-15 16:32:46 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 16:32:27 UTC
Captured 2026-10-15 16:47:40 UTC
Updated capture · M5.6 · 4.5 km deep · 31 nearby records
Source updated 2026-10-15 16:43:54 UTC
Captured 2026-10-15 17:32:43 UTC
Updated capture · M5.6 · 4.5 km deep · 32 nearby records
Source updated 2026-10-15 17:17:08 UTC
Captured 2026-10-15 18:32:42 UTC
Updated capture · M5.6 · 4.5 km deep · 34 nearby records
Source updated 2026-10-15 18:27:34 UTC
Captured 2026-10-15 19:02:41 UTC
Updated capture · M5.6 · 4.5 km deep · 34 nearby records
Source updated 2026-10-15 18:47:35 UTC
Captured 2026-10-15 19:17:40 UTC
Updated capture · M5.6 · 4.5 km deep · 34 nearby records
Source updated 2026-10-15 19:11:36 UTC
Captured 2026-10-15 20:02:41 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 19:55:12 UTC
Captured 2026-10-15 21:02:41 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 19:55:12 UTC
Captured 2026-10-15 21:17:40 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 21:10:22 UTC
Captured 2026-10-15 22:02:40 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 21:51:56 UTC
Captured 2026-10-15 22:17:41 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 22:16:25 UTC
Captured 2026-10-15 23:17:41 UTC
Updated capture · M5.6 · 4.5 km deep · 36 nearby records
Source updated 2026-10-15 23:17:04 UTC
Captured 2026-10-16 00:32:41 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-15 23:17:04 UTC
Captured 2026-10-16 01:32:43 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-15 23:17:04 UTC
Captured 2026-10-16 02:17:42 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 02:13:22 UTC
Captured 2026-10-16 03:32:40 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 02:13:22 UTC
Captured 2026-10-16 04:32:45 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 02:13:22 UTC
Captured 2026-10-16 05:17:40 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 05:17:11 UTC
Captured 2026-10-16 05:32:41 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 05:25:30 UTC
Captured 2026-10-16 06:32:43 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 05:25:30 UTC
Captured 2026-10-16 07:02:44 UTC
Updated capture · M5.6 · 4.5 km deep · 38 nearby records
Source updated 2026-10-16 06:50:11 UTC
Captured 2026-10-16 08:02:46 UTC
Updated capture · M5.6 · 4.5 km deep · 39 nearby records
Source updated 2026-10-16 06:50:11 UTC
Captured 2026-10-16 09:02:49 UTC
Updated capture · M5.6 · 4.5 km deep · 39 nearby records
Source updated 2026-10-16 06:50:11 UTC
Captured 2026-10-16 10:17:41 UTC
Updated capture · M5.6 · 4.5 km deep · 39 nearby records
Source updated 2026-10-16 06:50:11 UTC
Captured 2026-10-16 11:32:41 UTC
Updated capture · M5.6 · 4.5 km deep · 41 nearby records
Source updated 2026-10-16 11:17:04 UTC
Captured 2026-10-16 12:32:45 UTC
Updated capture · M5.6 · 4.5 km deep · 41 nearby records
Source updated 2026-10-16 11:17:04 UTC
Captured 2026-10-16 13:47:41 UTC
Updated capture · M5.6 · 4.5 km deep · 41 nearby records
Source updated 2026-10-16 11:17:04 UTC
Captured 2026-10-16 14:47:42 UTC
Updated capture · M5.6 · 4.5 km deep · 41 nearby records
Source updated 2026-10-16 11:17:04 UTC
Captured 2026-10-16 15:47:42 UTC
Updated capture · M5.6 · 4.5 km deep · 43 nearby records
Source updated 2026-10-16 11:17:04 UTC
Captured 2026-10-16 17:02:43 UTC
Updated capture · M5.6 · 4.5 km deep · 43 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 18:02:43 UTC
Updated capture · M5.6 · 4.5 km deep · 45 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 19:02:44 UTC
Updated capture · M5.6 · 4.5 km deep · 45 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 20:17:42 UTC
Updated capture · M5.6 · 4.5 km deep · 47 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 21:32:42 UTC
Updated capture · M5.6 · 4.5 km deep · 47 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 22:32:45 UTC
Updated capture · M5.6 · 4.5 km deep · 48 nearby records
Source updated 2026-10-16 15:55:01 UTC
Captured 2026-10-16 23:47:43 UTC
Updated capture · M5.6 · 4.5 km deep · 48 nearby records
Source updated 2026-10-16 15:55:01 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
16 October 2026 ↗15 October 2026 ↗SOURCE ID usgs:aka2026ukynnb