M3.7 earthquake 93 km WSW of Adak, Alaska
A magnitude 3.7 earthquake struck 93 km WSW of Adak, Alaska on Wed, Feb 19, 1997, 6:30 PM HAST (04:30 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.5 115 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-02-20 04:30:03 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.544° N, 177.872° 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
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.192 km SSW of Adak, Alaska · 10815 days ago · 33 km deep · 86 km away
- 3.3182 km WSW of Adak, Alaska · 10813 days ago · 33 km deep · 90 km away
- 4.8140 km WSW of Adak, Alaska · 10806 days ago · 33 km deep · 48 km away
- 4.8107 km WSW of Adak, Alaska · 10798 days ago · 56 km deep · 15 km away
- 4.242 km W of Adak, Alaska · 10798 days ago · 64 km deep · 52 km away
- 4.456 km SSW of Adak, Alaska · 10794 days ago · 33 km deep · 69 km away
- 4.1163 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 72 km away
- 4.8112 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 24 km away
- 5.5115 km WSW of Adak, Alaska · 10777 days ago · 33 km deep · 25 km away
- 4.129 km S of Adak, Alaska · 10756 days ago · 64 km deep · 81 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0007xh4. Read Thu, Oct 1, 2026, 11:34 AM UTC.