Earthquakes in Kenai Peninsula Borough, Alaska
The most recent earthquake of M2.5 or more near Kenai Peninsula Borough was M 2.5, 60 km NW of Ninilchik, Alaska, 10 km (6 mi) WNW of the centre of Kenai Peninsula Borough, at 9:14 pm AKST on 11 November 2026, 103 km deep. 1 person reported feeling it to USGS. At that size and distance it was probably too weak to feel at the centre of Kenai Peninsula Borough. 2 smaller earthquakes have been recorded near Kenai Peninsula Borough since.
In the last 24 hours, 5 earthquakes of M1.5 or more were recorded within 50 km (31 mi) of the centre of Kenai Peninsula Borough; the largest was M 2.5, 60 km NW of Ninilchik, Alaska, 10 km (6 mi) WNW of the centre of Kenai Peninsula Borough, at 9:14 pm AKST.
- Last 24 hours
- 5
- Last 7 days
- 27
- Last 30 days
- 103 · an average 30 days here since 2016: 81
- Last 12 months
- 1,009 · largest M 4.0 on 5 July 2026
- Since 2016
- 10,770 earthquakes of M1.5 or more
- Largest since 2016
- M 5.3 on 6 May 2017, 14 km N of Ninilchik, Alaska
- Nearest mapped fault
- Middle Ground Shoal anticline (Cook Inlet folds), 44 km from the centre to its surface trace
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 Kenai Peninsula Borough · shaking is estimated for the centre with the intensity equation USGS Did You Feel It? uses
Typical QuakeIndex 59 / 100
23 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 14 to 23 in a week.
Compared against Kenai Peninsula 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 Kenai Peninsula Borough, Alaska, for a local news site, school or neighborhood page.
Live · last 7 days
Latest earthquakes within 50 km
3 in the latest snapshot we hold; the full 7 days load from USGS as this page opens.
- 1.5 28 km W of Happy Valley, Alaska
- 2.5 60 km NW of Ninilchik, Alaska
- 0.6 77 km NW of Ninilchik, Alaska
Source USGS · snapshot of
The last 7 days on the map
Open the full map — zoom anywhere, or find your own location →
The centre is 60.367, -152.322, the Census internal point of Kenai Peninsula 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 Kenai Peninsula Borough, Alaska is intensity III (weak), from the M 5.3 of 2017, 41 km away. At that level a few people indoors notice it; most do not.
| Magnitude | When | Where | Shaking here (est.) |
|---|---|---|---|
| M 5.3 | 14 km N of Ninilchik, Alaska · felt by 735 | III · Weak | |
| M 5.1 | 48 km NW of Ninilchik, Alaska · felt by 911 | III · Weak | |
| M 4.9 | 43 km WNW of Happy Valley, Alaska · felt by 47 | III · Weak | |
| M 4.8 | 67 km E of Port Alsworth, Alaska · felt by 67 | II · Weak | |
| M 4.8 | 68 km E of Port Alsworth, Alaska · felt by 70 | II · Weak | |
| M 4.8 | 44 km WNW of Nikiski, Alaska · felt by 556 | II · Weak | |
| M 4.7 | 72 km ENE of Pedro Bay, Alaska | II · Weak | |
| M 4.7 | 42 km WNW of Ninilchik, Alaska · felt by 333 | II · 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 15 earthquakes of M5 or more within 50 km of the centre of Kenai Peninsula Borough, Alaska; the 8 largest:
- 6.4 75 km WNW of Ninilchik, Alaska · 36 km WSW of the centre
- 6.2 16 km WNW of Happy Valley, Alaska · 44 km SSE of the centre
- 6.2 70 km E of Port Alsworth, Alaska · 47 km WSW of the centre
- 6.1 73 km WNW of Ninilchik, Alaska · 27 km W of the centre
- 5.8 23 km WNW of Happy Valley, Alaska · 41 km SSE of the centre
- 5.6 63 km WNW of Ninilchik, Alaska · 26 km WSW of the centre
- 5.5 13 km NW of Happy Valley, Alaska · 44 km SSE of the centre
- 5.5 39 km WNW of Ninilchik, Alaska · 26 km S of the centre
USGS ComCat, M5+ from 1900 to 2015. Epicentres of early earthquakes are estimates. This is the record, not a forecast.
Nearest mapped faults
- Middle Ground Shoal anticline (Cook Inlet folds), 44 km from the centre of Kenai Peninsula Borough, Alaska to its surface trace
USGS Quaternary Fault and Fold Database, within 50 km. Near is not the same as on, and faults with no surface trace are not in it.
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