Reviewed by USGSAlaska3mo ago
M2.8 earthquake 137 km SE of Akutan, Alaska
Thursday, June 25, 2026, 14:50:11 UTC · 53.125°N, 164.575°W
A magnitude 2.8 earthquake struck 137 km SE of Akutan, Alaska on Thursday, June 25, 2026, 14:50:11 UTC, at a depth of 10.0 km (shallow).
- Magnitude
- 2.8
- Minor · ml
- Depth
- 10 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquakeDashed circle: 50 km aftershock search area
In context
How big was it, and why here?
Energy released
239 kg of TNT
That is about 1/63,000 of the Hiroshima bomb. A magnitude 5.0 releases about 1,995 times more energy.
Tectonic setting
29 km
from the nearest mapped plate boundary, between the North American and Pacific plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
10 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 50 km
USGS lists 10 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M2.9 on July 4, 2026. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 2.796 km SSE of Akutan, Alaska2mo ago · 43 km NW of this epicenter
- 2.8144 km SE of Akutan, Alaska2mo ago · 36 km NE of this epicenter
- 2.6107 km SE of Akutan, Alaska2mo ago · 38 km N of this epicenter
- 2.691 km SSE of Akutan, Alaska2mo ago · 48 km NW of this epicenter
- 2.597 km SE of Akutan, Alaska2mo ago · 48 km N of this epicenter
- 2.793 km SSE of Akutan, Alaska2mo ago · 47 km NW of this epicenter
- 2.598 km SE of Akutan, Alaska2mo ago · 41 km N of this epicenter
- 2.591 km SSE of Akutan, Alaska2mo ago · 46 km NW of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 570 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 8.6The 1946 Unimak Island, Alaska EarthquakeApril 1, 1946 · 123 km E of this epicenter
- 7.881 km E of Nikolski, AlaskaJuly 2, 1965 · 206 km W of this epicenter
- 7.22023 Sand Point, Alaska EarthquakeJuly 16, 2023 · 288 km NE of this epicenter
- 7.190 km SE of King Cove, AlaskaMay 14, 1948 · 277 km NE of this epicenter
- 7.139 km S of Akutan, AlaskaMarch 22, 1957 · 107 km NW of this epicenter
- 7.071 km SE of King Cove, AlaskaMay 30, 1991 · 252 km NE of this epicenter
- 7.0203 km SSE of Unalaska, AlaskaAugust 22, 1940 · 124 km SW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 10 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700, which together caused about 169 recorded deaths. The most severe:
- 1946M8.6
Unimak Island
1 Apr 1946 · 123 km away · intensity VI
168 deaths$26 million damagetsunami
- 2023M7.2
Alaska Peninsula
16 Jul 2023 · 291 km away · intensity VI
1 deathtsunami
- 1965M6.5
Aleutian Islands: Fox Islands
2 Jul 1965 · 199 km away
Limited damage (under $1M)tsunami
- 1902M7.8
Aleutian Islands: Fox Islands
1 Jan 1902 · 213 km away
- 1948M7.5
Alaska Peninsula
14 May 1948 · 280 km away
- 1957M7.5
Aleutian Islands: Fox Islands
22 Mar 1957 · 212 km away · intensity V
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.