Earthquakes in Kodiak Island Borough, Alaska
The most recent earthquake of M2.5 or more near Kodiak Island Borough was M 3.4, 15 km SSE of Larsen Bay, Alaska, 33 km (21 mi) S of the centre of Kodiak Island Borough, at 8:50 am AKST on 9 November 2026, 24 km deep. The estimated shaking at the centre of Kodiak Island Borough was intensity II (weak), felt by some people at rest indoors. 1 smaller earthquake has been recorded near Kodiak Island Borough since.
In the last 24 hours, 1 earthquake of M1.5 or more was recorded within 50 km (31 mi) of the centre of Kodiak Island Borough: M 1.9, 58 km N of Larsen Bay, Alaska, 41 km (25 mi) NNW of the centre of Kodiak Island Borough, at 7:54 pm AKST.
- Last 24 hours
- 1
- Last 7 days
- 6
- Last 30 days
- 20 · an average 30 days here since 2016: 11
- Last 12 months
- 232 · largest M 4.0 on 23 March 2026
- Since 2016
- 1,444 earthquakes of M1.5 or more
- Largest since 2016
- M 4.9 on 2 January 2021, 11 km NNE of Larsen Bay, Alaska
Latest quake, 24 hours and 7 days: the QuakeIndex database, which reads USGS every 30 seconds, read at ; 30 days and 12 months: the QuakeIndex catalogue, counted to · earthquakes of M1.5 or more within 50 km (31 mi) of the centre of Kodiak Island Borough · shaking is estimated for the centre with the intensity equation USGS Did You Feel It? uses
Unusual QuakeIndex 97 / 100
6 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 1 to 4 in a week.
Compared against Kodiak Island Borough, Alaska's own 10 years · USGS catalogue · updated
If you felt one
- Was that an earthquake? — checks what was recorded near you in the last hour
- Report what you felt to USGS — reports go to USGS, not to us, and they are what produces the intensity maps
- Expect aftershocks, and be ready to Drop, Cover, and Hold On if you feel one; if you are in a damaged building, go outside and move away from it (Ready.gov, FEMA; what to do during and after an earthquake)
- Near the coast, go inland or to higher ground as soon as strong shaking stops (Ready.gov); official warnings are on Tsunami.gov
QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.
The last 30 days
Show these earthquakes on your own site: a free card with this strip and the latest quakes near Kodiak Island Borough, Alaska, for a local news site, school or neighborhood page.
Live · last 7 days
Latest earthquakes within 50 km
1 in the latest snapshot we hold; the full 7 days load from USGS as this page opens.
Source USGS · snapshot of
The last 7 days on the map
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The centre is 57.704, -153.918, the Census internal point of Kodiak Island Borough, Alaska from the US Census Bureau Gazetteer (2024). Activity on this page is measured within 50 km of it — the dashed circle.
Largest on record nearby
The strongest shaking this record implies at the centre of Kodiak Island Borough, Alaska is intensity III (weak), from the M 4.9 of 2021, 7 km away. At that level a few people indoors notice it; most do not.
| Magnitude | When | Where | Shaking here (est.) |
|---|---|---|---|
| M 4.9 | 11 km NNE of Larsen Bay, Alaska · felt by 83 | III · Weak | |
| M 4.6 | 32 km SSW of Larsen Bay, Alaska · felt by 3 | III · Weak | |
| M 4.2 | 25 km NNE of Karluk, Alaska · felt by 1 | II · Weak | |
| M 4.1 | 23 km N of Larsen Bay, Alaska | III · Weak | |
| M 4.1 | 36 km NE of Larsen Bay, Alaska | II · Weak | |
| M 4.0 | 18 km N of Larsen Bay, Alaska · felt by 3 | III · Weak | |
| M 4.0 | 22 km NNE of Larsen Bay, Alaska | III · Weak | |
| M 3.9 | Kodiak Island region, Alaska · felt by 1 | III · Weak |
From the QuakeIndex catalogue, built from the USGS FDSN event service · within 50 km of the centre above. Shaking is an estimate for the centre from magnitude, depth and distance, with the intensity equation USGS Did You Feel It? uses (Atkinson & Wald, 2007), on the Modified Mercalli scale. Ground conditions change it locally; it is a description of the past, not a hazard rating.
Before 2016
The USGS record from 1900 to 2015 lists 14 earthquakes of M5 or more within 50 km of the centre of Kodiak Island Borough, Alaska; the 8 largest:
- 7.1 4 km ENE of Karluk, Alaska · 31 km WSW of the centre
- 7.0 26 km SSE of Karluk, Alaska · 48 km SSW of the centre
- 6.5 24 km SSW of Larsen Bay, Alaska · 42 km SSW of the centre
- 6.0 15 km S of Larsen Bay, Alaska · 34 km S of the centre
- 5.8 29 km NNE of Karluk, Alaska · 22 km WNW of the centre
- 5.7 24 km S of Larsen Bay, Alaska · 43 km S of the centre
- 5.7 6 km NE of Larsen Bay, Alaska · 13 km S of the centre
- 5.6 24 km N of Larsen Bay, Alaska · 8 km NW of the centre
USGS ComCat, M5+ from 1900 to 2015. Epicentres of early earthquakes are estimates. This is the record, not a forecast.
Be ready
Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.
- Ready.gov: earthquakes (FEMA) — what to do before, during and after, including Drop, Cover, and Hold On
- Build a kit (FEMA) — water, food and supplies for several days; our summary
- USGS: preparedness — the hazard behind the advice, from the agency that records every quake on this page
- The Great ShakeOut — the yearly earthquake drill, with material for homes, schools and workplaces
- Tsunami.gov (NOAA) — the official tsunami warnings for the coast; a quake page here never stands in for one