Earthquake · reviewed by a seismologist
M 1.8ml
Earthquake near Cordova, AK
No earthquake was likely felt in Cordova in the 24 hours to 8:40 pm AKST (05:40 UTC). The last one was M 3.1, 39 km (24 mi) SSW, at 7:37 pm AKDT on 28 June 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Cordova
This page: a magnitude 1.8 earthquake was recorded 19 km (12 mi) east of Cordova, AK, at 5:29 am AKDT on 10 April 2026 (13:29 UTC), 13 km deep.
USGS: 19 km E of Cordova, Alaska
- When
- 5:29 am AKDT on 10 April 2026 ()
- Where
- 19 km (12 mi) east of Cordova, AK · earthquakes near Cordova
- Magnitude
- M 1.8 (ml)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- Chugach Census Area, 44 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 217 days ago
Earthquake alerts for Cordova, 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 Cordova, 19 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 710,000× the energy of this one
- Around the size people start to feel M 3.0 63× the energy of this one
- This earthquake M 1.8 about 15 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 4.9 on 2021-01-25 — about 45,000 times the energy of this one.
Before 2016, the USGS record lists 16 earthquakes of M5 or more within 50 km; the five largest:
- 6.1 13 km ENE of Cordova, Alaska · 7 km WNW of this epicentre
- 5.9 31 km NW of Cordova, Alaska · 46 km WNW of this epicentre
- 5.7 30 km SSW of Cordova, Alaska · 44 km SW of this epicentre
- 5.7 27 km SSW of Cordova, Alaska · 42 km SW of this epicentre
- 5.6 25 km SW of Cordova, Alaska · 41 km WSW 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 60.5520, -145.4060. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Chugach Census Area, AK | 44 km (27 mi) | W | earthquakes near Chugach Census Area |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
22 earthquakes have been recorded within 50 km since this one.
- 2.1 34 km ESE of Cordova, Alaska
- 1.7 36 km SE of Valdez, Alaska
- 2.1 43 km ESE of Cordova, Alaska
- 1.6 49 km NE of Cordova, Alaska
- 2.1 52 km SE of Cordova, Alaska
- 1.8 48 km NE of Cordova, Alaska
- 1.7 20 km E of Cordova, Alaska
- 1.5 34 km ENE of Cordova, Alaska
- 1.7 53 km SE of Cordova, Alaska
- 1.6 52 km SE of Cordova, Alaska
- 1.5 26 km E of Cordova, Alaska
- 2.4 36 km SSW of Cordova, Alaska
- 3.1 39 km SSW of Cordova, Alaska
- 5.3 35 km SSW of Cordova, Alaska
- 1.5 26 km E of Cordova, 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.