Earthquake near Homer, AK

A magnitude 2.3 earthquake was recorded 48 km (30 mi) WSW of Homer, AK, at 5:12 pm AKDT on 27 September 2026 (01:12 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
3. Around the size people start to feel M 3.0 11× the energy of this one
4. This earthquake M 2.3 about 85 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 5.6 on 2017-03-02 — about 89,000 times the energy of this one.

Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:

1. 6.4 25 km NW of Nanwalek, Alaska · 8 km SE of this epicentre Jun 24, 1963
2. 6.0 53 km W of Anchor Point, Alaska · 37 km NW of this epicentre Apr 18, 1970
3. 5.9 Southern Alaska · 31 km WSW of this epicentre Jan 24, 2009
4. 5.6 67 km SE of Pedro Bay, Alaska · 44 km WSW of this epicentre Feb 12, 1995
5. 5.5 6 km WNW of Nanwalek, Alaska · 28 km SE of this epicentre Feb 10, 2004

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 59.5450, -152.3800. Map © OpenStreetMap contributors.

Nearby places

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

Aftershocks so far

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

1. 1.8 17 km SSW of Nanwalek, Alaska 08:16 UTC
2. 1.9 54 km WNW of Nanwalek, Alaska 02:52 UTC
3. 2.6 46 km W of Happy Valley, Alaska 19:28 UTC
4. 1.9 33 km WSW of Nanwalek, Alaska 18:30 UTC
5. 1.7 26 km SW of Anchor Point, Alaska 13:47 UTC
6. 2.0 27 km WNW of Anchor Point, Alaska 08:22 UTC
7. 1.5 60 km W of Anchor Point, Alaska 06:08 UTC
8. 3.4 23 km NW of Nanwalek, Alaska 03:29 UTC
9. 3.0 38 km WNW of Anchor Point, Alaska 03:22 UTC
10. 1.5 34 km WSW of Anchor Point, Alaska 00:29 UTC
11. 2.0 44 km WNW of Anchor Point, Alaska 17:34 UTC
12. 1.9 42 km WSW of Nanwalek, Alaska 09:37 UTC
13. 1.8 25 km SSW of Nanwalek, Alaska 07:39 UTC
14. 3.6 42 km WSW of Anchor Point, Alaska 16:44 UTC
15. 2.0 21 km W of Anchor Point, Alaska 03:05 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 01:04 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

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.