Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Kodiak, AK
No earthquake was likely felt in Kodiak in the 24 hours to 12:34 pm AKST (21:34 UTC). The last one was M 5.5, 133 km (83 mi) NNW, at 10:34 am AKDT on 6 October 2026, estimated intensity III (weak) in town; 342 felt reports to USGS. Every earthquake near Kodiak
This page: a magnitude 1.9 earthquake was recorded 39 km (24 mi) south-southwest of Kodiak, AK, at 3:31 am AKDT on 18 April 2022 (11:31 UTC), 15 km deep.
USGS: 24 km SW of Chiniak, Alaska
- When
- 3:31 am AKDT on 18 April 2022 ()
- Where
- 39 km (24 mi) south-southwest of Kodiak, AK · earthquakes near Kodiak
- Magnitude
- M 1.9 (ml)
- Depth
- 15 km below the surface
- Felt
- no reports yet
- Nearest
- Kodiak Island Borough, 86 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1612 days ago
Earthquake alerts for Kodiak, 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 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 3 km (2 mi) from the epicentre. In Kodiak, 39 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
- Magna, Utah 2020 M 5.7 500,000× the energy of this one
- Around the size people start to feel M 3.0 45× the energy of this one
- This earthquake M 1.9 about 21 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 4.1 on 2017-03-05 — about 2,000 times the energy of this one.
Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:
- 6.2 53 km ESE of Old Harbor, Alaska · 45 km S of this epicentre
- 5.9 25 km E of Old Harbor, Alaska · 37 km SSW of this epicentre
- 5.6 45 km SSE of Chiniak, Alaska · 45 km ESE of this epicentre
- 5.6 13 km S of Chiniak, Alaska · 19 km ENE of this epicentre
- 5.5 3 km E of Kodiak, Alaska · 40 km NNE 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 57.4458, -152.5660. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kodiak Island Borough, AK | 86 km (53 mi) | WNW | earthquakes near Kodiak Island Borough |
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.
- 2.2 9 km SE of Kodiak Station, Alaska
- 2.1 18 km SE of Chiniak, Alaska
- 1.7 28 km SW of Womens Bay, Alaska
- 1.6 25 km ESE of Old Harbor, Alaska
- 2.5 4 km NNE of Kodiak Station, Alaska
- 1.8 6 km S of Womens Bay, Alaska
- 1.7 5 km NW of Kodiak Station, Alaska
- 2.0 28 km SW of Womens Bay, Alaska
- 1.9 8 km WSW of Womens Bay, Alaska
- 1.6 31 km SW of Womens Bay, Alaska
- 1.8 23 km SSW of Womens Bay, Alaska
- 1.8 19 km SSW of Port Lions, Alaska
- 2.2 41 km E of Old Harbor, Alaska
- 2.2 20 km WSW of Womens Bay, Alaska
- 2.6 19 km WSW of Womens Bay, 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.