Volcano in United States
Okmok volcano: eruption status today
Updated
No eruption of Okmok is being reported right now Last eruption: 1964 or later; last significant eruption 1878 (NOAA NCEI).
Live status of Okmok: whether it is erupting now, satellite hot spots, earthquakes around it, and what an eruption would mean for nearby cities and flights.
- Status now
- No open report
- Last eruption
- 1964 or later last significant: 1878
- Elevation
- 1,073 m 3,521 ft
- Type
- Shield volcano
- Earthquakes within 50 km
- 22 past 30 days (USGS)
- Hot spots within 10 km
- 0 latest NASA FIRMS VIIRS data
- Nearest city
- Anchorage 1388 km NE
Is Okmok erupting right now?
There is no open NASA EONET event for Okmok right now. NOAA NCEI dates its most recent eruption to 1964 or later, and the last eruption in its significant-eruption database was in 1878. Volcano observatories can raise alert levels before an eruption starts, so check the national observatory for the current alert level.
No satellite thermal hot spot was detected within 10 km of the summit in the latest NASA FIRMS data, so there is no sign of lava at the surface large enough for VIIRS to see (clouds can hide it).
Earthquakes near Okmok
USGS located 22 earthquakes within 50 km of Okmok in the past 30 days, 2 of them in the last week. The largest was M2.8 on Sep 29, 2026, 27 km NNW of the summit at 219 km depth.
14 of them were shallower than 10 km. Swarms of shallow quakes can mean magma or gas is moving, but most swarms end without an eruption; observatories combine them with ground deformation and gas data.
| Time (UTC) | Magnitude | Distance | Depth | Location |
|---|---|---|---|---|
| Oct 23, 15:00 UTC | M1.3 | 9 km SSW | 8 km | 65 km NE of Nikolski, Alaska |
| Oct 22, 08:28 UTC | M-0.2 | 7 km SW | 0 km | 66 km NE of Nikolski, Alaska |
| Oct 17, 17:31 UTC | M-0.2 | 7 km SSW | 8 km | 66 km NE of Nikolski, Alaska |
| Oct 17, 06:50 UTC | M0.2 | 13 km S | 17 km | 62 km NE of Nikolski, Alaska |
| Oct 17, 04:42 UTC | M0.6 | 12 km WSW | 2 km | 61 km NE of Nikolski, Alaska |
| Oct 17, 04:11 UTC | M0.3 | 5 km SW | 3 km | 68 km NE of Nikolski, Alaska |
| Oct 12, 18:29 UTC | M1.6 | 37 km ESE | 76 km | 89 km ENE of Nikolski, Alaska |
| Oct 12, 12:34 UTC | M0.2 | 10 km SW | 5 km | 63 km NE of Nikolski, Alaska |
| Oct 11, 13:27 UTC | M0.8 | 5 km SW | 1 km | 68 km NE of Nikolski, Alaska |
| Oct 7, 23:17 UTC | M-0.4 | 9 km SSW | 9 km | 64 km NE of Nikolski, Alaska |
| Oct 7, 07:20 UTC | M0.4 | 6 km SW | 4 km | 67 km NE of Nikolski, Alaska |
| Oct 7, 07:12 UTC | M1.4 | 13 km SSW | 7 km | 61 km NE of Nikolski, Alaska |
| Oct 7, 07:11 UTC | M0.5 | 6 km S | 3 km | 68 km NE of Nikolski, Alaska |
| Oct 7, 04:19 UTC | M0.1 | 8 km S | 11 km | 66 km NE of Nikolski, Alaska |
| Oct 6, 00:20 UTC | M0.1 | 6 km SW | 0 km | 67 km NE of Nikolski, Alaska |
| Oct 5, 16:20 UTC | M0.4 | 7 km SW | 4 km | 66 km NE of Nikolski, Alaska |
| Oct 4, 04:06 UTC | M0.8 | 7 km ESE | 11 km | 76 km NE of Nikolski, Alaska |
| Oct 2, 04:11 UTC | M2.7 | 22 km SSW | 90 km | 53 km NE of Nikolski, Alaska |
| Oct 1, 01:49 UTC | M0.8 | 10 km S | 22 km | 66 km NE of Nikolski, Alaska |
| Oct 1, 00:04 UTC | M-0.3 | 12 km SSW | 9 km | 62 km NE of Nikolski, Alaska |
| Sep 29, 22:30 UTC | M2.8 | 27 km NNW | 219 km | 86 km NNE of Nikolski, Alaska |
| Sep 28, 17:34 UTC | M2.2 | 50 km E | 11 km | 74 km SW of Unalaska, Alaska |
About Okmok
Okmok is a shield volcano in Aleutian Is, United States, rising to 1,073 m (3,521 ft). NOAA NCEI classes its eruptive history as "Historical".
Shield volcanoes have broad, gentle slopes built by fluid lava flows; eruptions are usually effusive (lava fountains and flows) rather than explosive.
The volcano is remote: the nearest city in our list is Anchorage, 1388 km away.
Flights and volcanic ash
No major hub airport is within 400 km (the closest is Ted Stevens Anchorage, 1381 km away), but ash clouds from explosive eruptions can drift for thousands of kilometres along flight routes.
Volcanic Ash Advisory Centres (VAACs) issue the official ash advisories that airlines and air traffic control follow.
Other volcanoes in United States
United States has 58 volcanoes on this site that erupted since 1900 or are active now, 2 of them with an open NASA activity report today. The closest other one is Vsevidof, 50 km away.
Nearby volcanoes
Volcanoes in United States
More
Data: NOAA NCEI Volcano Locations, NASA EONET (open volcano events), USGS earthquakes, NASA FIRMS (VIIRS hot spots), Smithsonian Global Volcanism Program.