Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Kodiak, AK
No earthquake was likely felt in Kodiak in the 24 hours to 2:32 pm AKST (23:32 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 2.4 earthquake was recorded 28 km (18 mi) southwest of Kodiak, AK, at 8:05 pm AKDT on 12 March 2019 (04:05 UTC), 5.2 km deep. 1 person has reported feeling it to USGS.
USGS: Kodiak Island region, Alaska
- When
- 8:05 pm AKDT on 12 March 2019 ()
- Where
- 28 km (18 mi) southwest of Kodiak, AK · earthquakes near Kodiak
- Magnitude
- M 2.4 (ml)
- Depth
- 5.2 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Kodiak Island Borough, 69 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2002 days ago
Earthquake alerts for Kodiak, AK
Get a notification in this browser when USGS records an earthquake near Kodiak, AK. No account or email needed.
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 20 km (12 mi) from the epicentre. In Kodiak, 28 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.
Likely felt in: Kodiak Station 19 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
- Magna, Utah 2020 M 5.7 89,000× the energy of this one
- Around the size people start to feel M 3.0 7.9× the energy of this one
- This earthquake M 2.4 about 120 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 350 times the energy of this one.
Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:
- 5.8 9 km ENE of Port Lions, Alaska · 30 km N of this epicentre
- 5.6 13 km S of Chiniak, Alaska · 33 km ESE of this epicentre
- 5.5 3 km E of Kodiak, Alaska · 31 km NE of this epicentre
- 5.4 36 km SSW of Chiniak, Alaska · 42 km SSE 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 57.6258, -152.7708. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kodiak Island Borough, AK | 69 km (43 mi) | W | earthquakes near Kodiak Island Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.8 11 km NNE of Port Lions, Alaska
- 1.7 11 km SSW of Womens Bay, Alaska
- 2.6 14 km SSE of Womens Bay, AK
- 1.6 14 km SW of Port Lions, Alaska
- 1.6 24 km WNW of Port Lions, Alaska
- 1.9 11 km SSW of Port Lions, Alaska
- 1.8 5 km WSW of Kodiak, Alaska
- 1.6 28 km S of Womens Bay, Alaska
- 2.3 44 km SSW of Chiniak, Alaska
- 1.9 24 km WNW of Port Lions, Alaska
- 1.9 11 km W of Ouzinkie, Alaska
- 2.9 32 km WSW of Womens Bay, Alaska
- 2.0 23 km NNE of Old Harbor, Alaska
- 1.5 30 km SW of Womens Bay, Alaska
- 1.6 10 km S of Chiniak, 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.