QuakeIndex

Earthquakes in Kodiak Island Borough, Alaska

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90

Elevated QuakeIndex 90 / 100

5 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

The last 30 days

Aug 29 Sep 13 Sep 27
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–M2.2), from this place's own 10-year record. A mark above the band is a bigger day than usual.

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

Where this is

Centre 57.704, -153.918 — the Census internal point, from the US Census Bureau Gazetteer (2024). Activity is measured within 50 km of it.

Largest on record nearby

MagnitudeWhenWhere
M 4.9 11 km NNE of Larsen Bay, Alaska
M 4.6 32 km SSW of Larsen Bay, Alaska
M 4.2 25 km NNE of Karluk, Alaska
M 4.1 23 km N of Larsen Bay, Alaska
M 4.1 36 km NE of Larsen Bay, Alaska
M 4.0 18 km N of Larsen Bay, Alaska
M 4.0 22 km NNE of Larsen Bay, Alaska
M 3.9 Kodiak Island region, Alaska

From the QuakeIndex catalogue, built from the USGS FDSN event service · within 50 km of the centre above.

After an earthquake here