Earthquakes in Matanuska-Susitna Borough, Alaska
The most recent earthquake of M2.5 or more near Matanuska-Susitna Borough was M 2.6, 35 km N of Sutton-Alpine, Alaska, 38 km (24 mi) ESE of the centre of Matanuska-Susitna Borough, at 6:10 pm AKST on 7 November 2026, 14 km deep. 1 person reported feeling it to USGS. The estimated shaking at the centre of Matanuska-Susitna Borough was intensity II (weak), felt by some people at rest indoors. 6 smaller earthquakes have been recorded near Matanuska-Susitna Borough since.
No earthquake of M1.5 or more was recorded within 50 km (31 mi) of the centre of Matanuska-Susitna Borough in the last 24 hours.
- Last 24 hours
- 0
- Last 7 days
- 12
- Last 30 days
- 66 · an average 30 days here since 2016: 29
- Last 12 months
- 736 · largest M 3.7 on 23 September 2026
- Since 2016
- 3,791 earthquakes of M1.5 or more
- Largest since 2016
- M 4.6 on 26 November 2020, 18 km SSW of Susitna North, 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 Matanuska-Susitna Borough · shaking is estimated for the centre with the intensity equation USGS Did You Feel It? uses
Typical QuakeIndex 72 / 100
11 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 4 to 8 in a week.
Compared against Matanuska-Susitna 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 Matanuska-Susitna Borough, Alaska, for a local news site, school or neighborhood page.
Live · last 7 days
Latest earthquakes within 50 km
None within 50 km 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
Open the full map — zoom anywhere, or find your own location →
The centre is 62.266, -149.504, the Census internal point of Matanuska-Susitna 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 Matanuska-Susitna Borough, Alaska is intensity III (weak), from the M 4.4 of 2025, 26 km away. At that level a few people indoors notice it; most do not.
| Magnitude | When | Where | Shaking here (est.) |
|---|---|---|---|
| M 4.6 | 18 km SSW of Susitna North, Alaska · felt by 181 | III · Weak | |
| M 4.4 | 34 km ESE of Susitna North, Alaska · felt by 81 | III · Weak | |
| M 4.3 | 19 km SE of Susitna North, Alaska · felt by 82 | III · Weak | |
| M 4.3 | 61 km ENE of Susitna North, Alaska · felt by 7 | III · Weak | |
| M 4.2 | 8 km ESE of Susitna North, Alaska · felt by 447 | III · Weak | |
| M 4.2 | 6 km ESE of Susitna North, Alaska · felt by 33 | III · Weak | |
| M 4.2 | 27 km ENE of Susitna North, Alaska · felt by 33 | III · Weak | |
| M 4.1 | 27 km ESE of Susitna North, Alaska · felt by 90 | 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 6 earthquakes of M5 or more within 50 km of the centre of Matanuska-Susitna Borough, Alaska:
- 5.9 23 km NE of Willow, Alaska · 41 km SSW of the centre
- 5.8 37 km ENE of Susitna North, Alaska · 16 km ENE of the centre
- 5.8 14 km NNE of Fishhook, Alaska · 50 km SSE of the centre
- 5.4 25 km NNW of Willow, Alaska · 47 km SW of the centre
- 5.1 21 km SSE of Susitna North, Alaska · 33 km SSW of the centre
- 5.1 25 km ENE of Susitna North, Alaska · 6 km ESE of the centre
USGS ComCat, M5+ from 1900 to 2015. Epicentres of early earthquakes are estimates. This is the record, not a forecast.
Town pages near Matanuska-Susitna Borough, Alaska
Susitna North 21 km · 272 M2.5+ named after it
Each town page lists every M1.5+ earthquake within 30 km since 2016 and the ones USGS named after it. Town names: GeoNames (CC BY 4.0).
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