Earthquake · reviewed by a seismologist
M 3.1ml
22 km W of Chenega, Alaska
Yes. A magnitude 3.1 earthquake was recorded 22 km W of Chenega, Alaska, at 9:50 am AKDT on 13 June 2024 (17:50 UTC), 20 km deep.
- When
- Magnitude
- M 3.1 (ml)
- Depth
- 20 km below the surface
- Felt
- no reports yet
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 812 days ago
Earthquake alerts for Bear Creek, AK
Get a notification in this browser when USGS records an earthquake near Bear Creek, 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 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 36 km (22 mi) from the epicentre. 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 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 250,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,900× the energy of this one
- This earthquake M 3.1 about 1,300 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.4× 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:
- 6.1 25 km WSW of Chenega, Alaska · 11 km S of this epicentre
- 5.8 29 km NW of Chenega, Alaska · 18 km N of this epicentre
- 5.8 33 km ESE of Bear Creek, Alaska · 21 km W of this epicentre
- 5.7 Southern Alaska · 39 km E of this epicentre
- 5.7 23 km SSE of Chenega, Alaska · 38 km SE 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 60.0871, -148.4180. Map © OpenStreetMap contributors.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 2.8 32 km S of Whittier, Alaska
- 1.6 21 km WNW of Chenega, Alaska
- 1.7 30 km WSW of Chenega, Alaska
- 2.5 24 km WNW of Chenega, Alaska
- 1.6 36 km SSE of Whittier, Alaska
- 1.5 27 km WNW of Chenega, Alaska
- 2.2 37 km E of Primrose, Alaska
- 1.5 35 km SE of Lowell Point, Alaska
- 1.6 6 km NW of Chenega, Alaska
- 1.9 38 km SSE of Whittier, Alaska
- 1.8 26 km WSW of Chenega, Alaska
- 1.5 34 km SSE of Whittier, Alaska
- 1.7 46 km SW of Chenega, Alaska
- 3.3 21 km NW of Chenega, Alaska
- 1.8 15 km SSE of Chenega, 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.