Reviewed by USGSAlaska2y ago
M2.6 earthquake 94 km SSW of False Pass, Alaska
Wednesday, June 26, 2024, 12:35:14 UTC · 54.115°N, 164.133°W
A magnitude 2.6 earthquake struck 94 km SSW of False Pass, Alaska on Wednesday, June 26, 2024, 12:35:14 UTC, at a depth of 57.5 km (shallow).
- Magnitude
- 2.6
- Minor · ml
- Depth
- 57 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
120 kg of TNT
That is about 1/125,702 of the Hiroshima bomb. A magnitude 5.0 releases about 3,981 times more energy.
Tectonic setting
119 km
from the nearest mapped plate boundary, between the North American and Pacific plates. Earthquakes this far from a boundary happen on faults inside a plate, often less frequently but sometimes strongly.
Depth: shallow
57 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 7 M2.5+ earthquakes within 50 km in the following 30 days; the largest was M3.6 on July 10, 2024. Most nearby activity right after a large earthquake is aftershocks, which usually become less frequent over days and weeks.
- 2.7112 km SSW of False Pass, Alaska2y ago · 34 km SE of this epicenter
- 2.5101 km SSW of False Pass, Alaska2y ago · 21 km SE of this epicenter
- 3.289 km ESE of Akutan, Alaska2y ago · 49 km SW of this epicenter
- 3.171 km ENE of Akutan, Alaska2y ago · 48 km NW of this epicenter
- 2.8113 km SSW of False Pass, Alaska2y ago · 36 km SE of this epicenter
- 3.6116 km ESE of Akutan, Alaska2y ago · 35 km S of this epicenter
- 2.584 km SSW of False Pass, Alaska2y ago · 12 km NE of this epicenter
Regional history
Past M5+ earthquakes within 300 km
USGS lists 472 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 · 110 km SE of this epicenter
- 7.881 km E of Nikolski, AlaskaJuly 2, 1965 · 263 km SW of this epicenter
- 7.62020 Sand Point, Alaska EarthquakeOctober 19, 2020 · 297 km E of this epicenter
- 7.454 km SE of Sand Point, AlaskaMay 31, 1917 · 291 km E of this epicenter
- 7.22023 Sand Point, Alaska EarthquakeJuly 16, 2023 · 221 km E of this epicenter
- 7.190 km SE of King Cove, AlaskaMay 14, 1948 · 200 km E of this epicenter
- 7.139 km S of Akutan, AlaskaMarch 22, 1957 · 114 km W of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 11 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 · 110 km away · intensity VI
168 deaths$26 million damagetsunami
- 2023M7.2
Alaska Peninsula
16 Jul 2023 · 222 km away · intensity VI
1 deathtsunami
- 1965M6.5
Aleutian Islands: Fox Islands
2 Jul 1965 · 256 km away
Limited damage (under $1M)tsunami
- 1788M8.0
Alaska Peninsula
6 Aug 1788 · 225 km away
tsunami
- 1902M7.8
Aleutian Islands: Fox Islands
1 Jan 1902 · 294 km away
- 2020M7.6
Alaska
19 Oct 2020 · 297 km away · intensity IX
tsunami
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.