QuakeIndex

Earthquakes in Matanuska-Susitna Borough, Alaska

← Earthquakes in Alaska

97

Unusual QuakeIndex 97 / 100

8 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

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

2 in the latest snapshot we hold; the full 7 days load from USGS as this page opens.

  1. 2.5 39 km ENE of Chase, Alaska 40 km (25 mi) S · 59 km deep
  2. 1.9 14 km SSE of Trapper Creek, Alaska 35 km (22 mi) ENE · 60 km deep

Source USGS · snapshot of

Where this is

Centre 62.266, -149.504 — 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 4.6 18 km SSW of Susitna North, Alaska
M 4.4 34 km ESE of Susitna North, Alaska
M 4.3 19 km SE of Susitna North, Alaska
M 4.3 61 km ENE of Susitna North, Alaska
M 4.2 8 km ESE of Susitna North, Alaska
M 4.2 6 km ESE of Susitna North, Alaska
M 4.2 27 km ENE of Susitna North, Alaska
M 4.1 27 km ESE of Susitna North, Alaska

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

After an earthquake here