M3.5 earthquake 15 km SW of Cantwell, Alaska
A magnitude 3.5 earthquake struck 15 km SW of Cantwell, Alaska on Thu, Aug 6, 1987, 8:54 AM AKDT (16:54 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-08-06 16:54:46 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 63.305° N, 149.196° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
- 3.364 km ESE of Cantwell, Alaska · 14273 days ago · 0 km deep · 74 km away
- 3.555 km SE of Denali National Park, Alaska · 14252 days ago · 33 km deep · 88 km away
- 3.114 km W of Healy, Alaska · 14246 days ago · 33 km deep · 62 km away
- 3.322 km ENE of Healy, Alaska · 14243 days ago · 33 km deep · 74 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00037a7. Read Thu, Oct 1, 2026, 12:12 PM UTC.