M6.0 earthquake 78 km S of Cordova, Alaska
A magnitude 6.0 earthquake struck 78 km S of Cordova, Alaska on Sun, Mar 29, 1964, 9:09 PM GMT-10 (07:09 UTC), 11 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (Mw, moment), strong
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1964-03-30 07:09:35 UTC
- Depth
- 11.3 km (7.0 mi), shallow
- Epicenter
- 59.840° N, 145.803° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 6.01 | Mw, moment | ISC-GEM global catalog | Preferred · Final · ±0.2 |
| 5.6 | mb, body-wave | USGS historic United States catalog | Final |
What happened
The USGS’s account of the effects of this earthquake.
Maximum observed Modified Mercalli Intensity (MMI) I
From the USGS event page for iscgem870148. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.0 and up: 11 in the 60 days after this one and 7 in the 30 days before it.
After
- 5.6127 km SE of Cordova, Alaska · 22828 days ago · 19 km deep · 82 km away
- 5.6121 km SSE of Cordova, Alaska · 22828 days ago · 10 km deep · 64 km away
- 5.658 km WSW of Cordova, Alaska · 22827 days ago · 15 km deep · 67 km away
- 6.067 km E of Chenega, Alaska · 22827 days ago · 25 km deep · 58 km away
- 5.8133 km S of Cordova, Alaska · 22826 days ago · 18 km deep · 58 km away
- 5.866 km E of Chenega, Alaska · 22825 days ago · 15 km deep · 68 km away
- 5.687 km SE of Chenega, Alaska · 22822 days ago · 19 km deep · 69 km away
- 5.625 km SW of Cordova, Alaska · 22822 days ago · 14 km deep · 59 km away
- 5.677 km SSE of Cordova, Alaska · 22821 days ago · 17 km deep · 33 km away
- 5.4152 km SSE of Cordova, Alaska · 22807 days ago · 25 km deep · 86 km away
- 5.541 km SW of Cordova, Alaska · 22800 days ago · 25 km deep · 50 km away
Before
- 5.558 km ESE of Chenega, Alaska · 22832 days ago · 15 km deep · 72 km away
- 5.775 km SE of Chenega, Alaska · 22832 days ago · 18 km deep · 70 km away
- 6.356 km WSW of Cordova, Alaska · 22833 days ago · 10 km deep · 75 km away
- 6.360 km SW of Cordova, Alaska · 22833 days ago · 10 km deep · 64 km away
- 5.749 km WSW of Cordova, Alaska · 22833 days ago · 25 km deep · 65 km away
- 6.1101 km SE of Chenega, Alaska · 22834 days ago · 15 km deep · 50 km away
- 5.765 km SSW of Cordova, Alaska · 22834 days ago · 15 km deep · 40 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem870148 (also filed as ushis2670). Read Fri, Oct 2, 2026, 11:28 PM UTC.