Earthquake near Bear Creek, AK

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Bear Creek, 20 km away, the estimate is intensity I (not felt). 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.

Earthquakes near other towns within 30 km: Seward.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
3. Around the size people start to feel M 3.0 180× the energy of this one
4. This earthquake M 1.5 about 5.4 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

1. 6.6 3 km SW of Bear Creek, Alaska · 23 km WSW of this epicentre Sep 27, 1949
2. 6.1 25 km WSW of Chenega, Alaska · 46 km SE of this epicentre Mar 28, 1964
3. 5.8 29 km NW of Chenega, Alaska · 38 km E of this epicentre Jul 25, 1937
4. 5.8 33 km ESE of Bear Creek, Alaska · 23 km SE of this epicentre Mar 28, 1964
5. 5.7 43 km WSW of Chenega, Alaska · 48 km SSE of this epicentre Mar 29, 1964

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

Epicentre 60.2554, -149.0896. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.7 20 km E of Crown Point, Alaska 13:59 UTC
2. 1.7 19 km SSW of Lowell Point, Alaska 12:56 UTC
3. 1.9 4 km NNW of Moose Pass, Alaska 00:42 UTC
4. 1.5 20 km SSW of Lowell Point, Alaska 06:25 UTC
5. 1.6 27 km E of Moose Pass, Alaska 11:19 UTC
6. 1.5 38 km ESE of Lowell Point, Alaska 20:03 UTC
7. 1.7 16 km N of Moose Pass, Alaska 02:37 UTC
8. 1.9 36 km ESE of Lowell Point, Alaska 13:57 UTC
9. 1.8 37 km WSW of Chenega, Alaska 09:57 UTC
10. 1.6 19 km SSW of Whittier, Alaska 07:28 UTC
11. 1.6 12 km ESE of Bear Creek, Alaska 20:41 UTC
12. 1.6 35 km ESE of Primrose, Alaska 05:06 UTC
13. 1.6 17 km SW of Whittier, Alaska 01:03 UTC
14. 1.5 41 km NW of Chenega, Alaska 16:36 UTC
15. 1.5 18 km E of Lowell Point, Alaska 15:48 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 12:27 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.