Volcano in United States
Great Sitkin volcano: eruption status today
Updated
No eruption of Great Sitkin is being reported right now Last eruption: 1964 or later (NOAA NCEI).
Live status of Great Sitkin: 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
- Elevation
- 1,740 m 5,709 ft
- Type
- Stratovolcano
- Earthquakes within 50 km
- 32 past 30 days (USGS)
- Hot spots within 10 km
- 0 latest NASA FIRMS VIIRS data
- Nearest city
- Petropavlovsk-Kamchatsky 1701 km WNW
Is Great Sitkin erupting right now?
There is no open NASA EONET event for Great Sitkin right now. NOAA NCEI dates its most recent eruption to 1964 or later. 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 Great Sitkin
USGS located 32 earthquakes within 50 km of Great Sitkin in the past 30 days, 4 of them in the last week. The largest was M3.3 on Oct 3, 2026, 9 km SE of the summit at 137 km depth.
17 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 22, 03:33 UTC | M-0.2 | 4 km WSW | 3 km | 37 km NE of Adak, Alaska |
| Oct 21, 13:45 UTC | M-0.1 | 3 km NNW | 3 km | 41 km NE of Adak, Alaska |
| Oct 21, 03:18 UTC | M-0.1 | 1 km NNW | 3 km | 41 km NE of Adak, Alaska |
| Oct 19, 09:47 UTC | M2.0 | 19 km SE | 173 km | 48 km E of Adak, Alaska |
| Oct 18, 15:19 UTC | M1.3 | 1 km SW | 5 km | 39 km ENE of Adak, Alaska |
| Oct 18, 08:50 UTC | M2.0 | 44 km SE | 78 km | 68 km E of Adak, Alaska |
| Oct 17, 10:11 UTC | M0.9 | 10 km NNW | 13 km | 44 km NE of Adak, Alaska |
| Oct 17, 05:15 UTC | M1.0 | 1 km NNW | 5 km | 41 km NE of Adak, Alaska |
| Oct 16, 20:18 UTC | M1.1 | 7 km N | 3 km | 44 km NE of Adak, Alaska |
| Oct 16, 15:22 UTC | M-0.1 | 2 km SSW | 2 km | 39 km ENE of Adak, Alaska |
| Oct 16, 01:20 UTC | M0.5 | 3 km NW | 5 km | 41 km NE of Adak, Alaska |
| Oct 15, 18:00 UTC | M1.1 | 23 km E | 5 km | 61 km ENE of Adak, Alaska |
| Oct 15, 15:54 UTC | M2.6 | 32 km E | 171 km | 69 km ENE of Adak, Alaska |
| Oct 13, 06:12 UTC | M0.9 | 5 km WNW | 8 km | 38 km NE of Adak, Alaska |
| Oct 13, 04:40 UTC | M0.8 | 4 km WSW | 4 km | 37 km NE of Adak, Alaska |
| Oct 10, 17:51 UTC | M1.4 | 40 km WSW | 4 km | 1 km ENE of Adak, Alaska |
| Oct 8, 16:19 UTC | M1.0 | 17 km E | 15 km | 55 km ENE of Adak, Alaska |
| Oct 8, 11:10 UTC | M2.6 | 13 km E | 147 km | 51 km ENE of Adak, Alaska |
| Oct 6, 18:33 UTC | M0.9 | 5 km WSW | 4 km | 36 km NE of Adak, Alaska |
| Oct 6, 15:51 UTC | M0.4 | 2 km ENE | 11 km | 43 km ENE of Adak, Alaska |
| Oct 4, 16:42 UTC | M1.3 | 6 km SW | -2 km | 35 km ENE of Adak, Alaska |
| Oct 3, 07:55 UTC | M3.3 | 9 km SE | 137 km | 45 km ENE of Adak, Alaska |
| Oct 3, 00:48 UTC | M0.8 | 4 km NNW | 15 km | 41 km NE of Adak, Alaska |
| Sep 29, 21:09 UTC | M0.5 | 4 km W | 4 km | 37 km NE of Adak, Alaska |
| Sep 29, 14:43 UTC | M1.9 | 45 km E | 18 km | 83 km ENE of Adak, Alaska |
About Great Sitkin
Great Sitkin is a stratovolcano in Aleutian Is, United States, rising to 1,740 m (5,709 ft). NOAA NCEI classes its eruptive history as "Historical".
Stratovolcanoes are steep cones built from alternating lava and ash layers; their eruptions are often explosive, with ash columns that can reach cruising altitude.
The volcano is remote: the nearest city in our list is Petropavlovsk-Kamchatsky, 1701 km away.
Flights and volcanic ash
No major hub airport is within 400 km (the closest is Ted Stevens Anchorage, 1872 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 Kasatochi, 44 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.