Earthquake · reviewed by a seismologist
M 3.4ml
Earthquake near Homer, AK
No earthquake was likely felt in Homer in the 24 hours to 9:26 am AKST (18:26 UTC). The last one was M 4.3, 71 km (44 mi) NNE, at 2:30 am AKST on 1 November 2026, estimated intensity II (weak) in town; 115 felt reports to USGS. Every earthquake near Homer
This page: a magnitude 3.4 earthquake was recorded 36 km (23 mi) southwest of Homer, AK, at 11:04 am AKST on 25 November 2018 (20:04 UTC), 54 km deep. 1 person has reported feeling it to USGS.
USGS: 8 km NW of Nanwalek, Alaska
- When
- 11:04 am AKST on 25 November 2018 ()
- Where
- 36 km (23 mi) southwest of Homer, AK · earthquakes near Homer
- Magnitude
- M 3.4 (ml)
- Depth
- 54 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Kenai Peninsula Borough, 107 km N
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1184 days ago
Earthquake alerts for Homer, AK
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 mi) from the epicentre. In Homer, 36 km away, the estimate is intensity II (weak). 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 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 89,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,800× the energy of this one
- This earthquake M 3.4 about 1.9 tons of TNT
- Around the size people start to feel M 3.0 this one released 4× more
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 4.3 on 2018-03-13 — about 22 times the energy of this one.
Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:
- 6.4 25 km NW of Nanwalek, Alaska · 18 km WNW of this epicentre
- 5.9 Southern Alaska · 50 km W of this epicentre
- 5.7 30 km ESE of Port Graham, Alaska · 43 km ESE of this epicentre
- 5.5 6 km WNW of Nanwalek, Alaska · 5 km SSW of this epicentre
- 5.4 22 km ESE of Port Graham, Alaska · 35 km ESE of this epicentre
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 59.4151, -152.0109. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kenai Peninsula Borough, AK | 107 km (67 mi) | N | earthquakes near Kenai Peninsula Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.5 18 km NW of Seldovia Village, Alaska
- 1.8 Southern Alaska
- 1.6 25 km WSW of Anchor Point, Alaska
- 1.8 32 km W of Nanwalek, Alaska
- 2.9 7 km SSW of Nanwalek, Alaska
- 1.5 29 km S of Port Graham, Alaska
- 1.9 36 km SW of Nanwalek, Alaska
- 1.7 2 km W of Anchor Point, Alaska
- 2.3 25 km W of Anchor Point, Alaska
- 2.0 Southern Alaska
- 1.8 Southern Alaska
- 1.7 18 km WSW of Nanwalek, Alaska
- 1.5 22 km S of Nanwalek, Alaska
- 1.7 33 km W of Anchor Point, Alaska
- 1.8 24 km W of Anchor Point, Alaska
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . 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.