QuakeIndex

Earthquakes in Chugach Census Area, Alaska

← Earthquakes in Alaska

The most recent earthquake of M2.5 or more near Chugach Census Area was M 2.5, 4 km SE of Tatitlek, Alaska, 45 km (28 mi) NNW of the centre of Chugach Census Area, at 1:29 am AKDT on 15 July 2026, 22 km deep. The estimated shaking at the centre of Chugach Census Area was intensity II (weak), felt by some people at rest indoors. 8 smaller earthquakes have been recorded near Chugach Census Area since.

No earthquake of M1.5 or more was recorded within 50 km (31 mi) of the centre of Chugach Census Area in the last 24 hours.

Last 24 hours
0
Last 7 days
0
Last 30 days
3 · an average 30 days here since 2016: 3.3
Last 12 months
43 · largest M 5.3 on 28 June 2026
Since 2016
441 earthquakes of M1.5 or more
Largest since 2016
M 5.3 on 28 June 2026, 35 km SSW of Cordova, 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 Chugach Census Area · shaking is estimated for the centre with the intensity equation USGS Did You Feel It? uses

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Quiet QuakeIndex 0 / 100

0 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 0 to 1 in a week.

Compared against Chugach Census Area, Alaska's own 10 years · USGS catalogue · updated

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.

The last 30 days

Oct 14 Oct 29 Nov 12
Each mark is a day's largest quake within range; its size is the magnitude. The shaded band is the magnitude a day's largest quake normally falls in here (M1.6–M2.0), from this place's own 10-year record. A mark above the band is a bigger day than usual.

Show these earthquakes on your own site: a free card with this strip and the latest quakes near Chugach Census Area, 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

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Every earthquake within 50 km of Chugach Census Area, Alaska in the last 7 days, from the USGS feed. Colour and size are magnitude; tap one for its page.

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The centre is 60.488, -146.203, the Census internal point of Chugach Census Area, 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 Chugach Census Area, Alaska is intensity IV (light), from the M 5.3 of 2026, 32 km away. At that level most people indoors notice it; dishes and windows rattle.

MagnitudeWhenWhereShaking here (est.)
M 5.3 35 km SSW of Cordova, Alaska · felt by 100 IV · Light
M 4.9 36 km SSW of Cordova, Alaska · felt by 34 IV · Light
M 4.3 29 km SSW of Tatitlek, Alaska · felt by 197 III · Weak
M 4.0 45 km SSW of Cordova, Alaska III · Weak
M 3.7 18 km ENE of Tatitlek, Alaska · felt by 2 II · Weak
M 3.6 23 km SSW of Tatitlek, Alaska · felt by 1 II · Weak
M 3.4 40 km SSW of Tatitlek, Alaska · felt by 2 II · Weak
M 3.3 45 km SSW of Cordova, Alaska 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 23 earthquakes of M5 or more within 50 km of the centre of Chugach Census Area, Alaska; the 8 largest:

  1. 6.3 60 km SW of Cordova, Alaska · 38 km SW of the centre
  2. 6.3 56 km WSW of Cordova, Alaska · 32 km WSW of the centre
  3. 6.1 13 km ENE of Cordova, Alaska · 39 km ENE of the centre
  4. 5.9 31 km NW of Cordova, Alaska · 28 km N of the centre
  5. 5.8 66 km E of Chenega, Alaska · 49 km SW of the centre
  6. 5.7 65 km SSW of Cordova, Alaska · 50 km SSW of the centre
  7. 5.7 49 km WSW of Cordova, Alaska · 27 km SW of the centre
  8. 5.7 30 km SSW of Cordova, Alaska · 21 km SSE 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 Chugach Census Area, Alaska

Cordova 25 km · 17 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.