4 km NNW of Akhiok, Alaska

Yes. A magnitude 2.0 earthquake was recorded 4 km NNW of Akhiok, Alaska at 05:20 UTC on 2019-04-25, 13 km deep.

2019-04-25 05:20 UTC · 13 km deep · released about 30 lb of TNT

Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 2019-04-25 05:20 UTC
Magnitude: M 2.0 (ml)
Depth: 13 km below the surface
Felt: no reports yet
Nearest: Kodiak Island Borough, 82 km NNE
Status: Reviewed by a seismologist

USGS · last changed by USGS 1967 days ago · we first saw it 1967 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
Magna, Utah 2020 M 5.7 350,000× the energy of this one
Around the size people start to feel M 3.0 32× the energy of this one
This earthquake M 2.0 about 30 lb of TNT

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 4.4 on 2017-03-16 — about 4,000 times the energy of this one.

Before 2016, the USGS record lists 26 earthquakes of M5 or more within 50 km; the five largest:

7.0 26 km SSE of Karluk, Alaska · 41 km NNW of this epicentre Dec 6, 1999
6.5 24 km SSW of Larsen Bay, Alaska · 41 km N of this epicentre Jul 11, 2000
6.4 29 km N of Akhiok, Alaska · 24 km N of this epicentre Dec 7, 1999
6.2 19 km SW of Old Harbor, Alaska · 42 km ENE of this epicentre Dec 9, 1938
6.1 13 km S of Akhiok, Alaska · 18 km S of this epicentre Dec 5, 1912

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Map loads when it scrolls into view

Epicentre 56.9843, -154.2115. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Kodiak Island Borough, AK	82 km (51 mi)	NNE	earthquakes near Kodiak Island Borough

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

51 earthquakes have been recorded within 50 km since this one.

1.6 23 km E of Akhiok, Alaska 04:52 UTC
2.1 19 km NNE of Akhiok, Alaska 04:30 UTC
2.6 23 km SSW of Karluk, Alaska 16:35 UTC
2.2 26 km SSE of Karluk, Alaska 09:16 UTC
2.1 29 km ESE of Akhiok, Alaska 03:55 UTC
3.1 29 km E of Akhiok, Alaska 23:41 UTC
2.7 35 km SSW of Karluk, Alaska 21:28 UTC
1.9 40 km SSW of Karluk, Alaska 18:38 UTC
1.8 18 km W of Akhiok, Alaska 13:55 UTC
2.4 36 km SSW of Karluk, Alaska 08:16 UTC
2.3 37 km NW of Akhiok, Alaska 14:36 UTC
2.3 27 km NE of Akhiok, Alaska 05:31 UTC
1.5 31 km SSW of Karluk, Alaska 07:12 UTC
2.6 31 km NW of Akhiok, Alaska 23:33 UTC
2.3 25 km NE of Akhiok, Alaska 11:25 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:25 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.