Volcano in United States
Aniakchak volcano: eruption status today
Updated
No eruption of Aniakchak is being reported right now Last eruption: 1900–1963; last significant eruption -1645 (NOAA NCEI).
Live status of Aniakchak: 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
- 1900–1963 last significant: -1645
- Elevation
- 1,341 m 4,400 ft
- Type
- Caldera
- Earthquakes within 50 km
- 10 past 30 days (USGS)
- Hot spots within 10 km
- 0 latest NASA FIRMS VIIRS data
- Nearest city
- Anchorage 675 km NE
Is Aniakchak erupting right now?
There is no open NASA EONET event for Aniakchak right now. NOAA NCEI dates its most recent eruption to 1900–1963, and the last eruption in its significant-eruption database was in -1645. 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 Aniakchak
USGS located 10 earthquakes within 50 km of Aniakchak in the past 30 days, 0 of them in the last week. The largest was M2.2 on Oct 6, 2026, 47 km SE of the summit at 92 km depth.
4 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 18, 10:18 UTC | M1.3 | 34 km NW | 39 km | 82 km SW of Pilot Point, Alaska |
| Oct 13, 15:05 UTC | M1.9 | 36 km ENE | 108 km | 59 km SSW of Ugashik, Alaska |
| Oct 12, 05:59 UTC | M0.1 | 14 km SSE | 0 km | 55 km NNE of Chignik, Alaska |
| Oct 12, 05:43 UTC | M2.0 | 20 km SSE | 2 km | 53 km NNE of Chignik, Alaska |
| Oct 11, 15:08 UTC | M2.1 | 29 km SSE | 86 km | 50 km NE of Chignik, Alaska |
| Oct 10, 17:50 UTC | M-0.3 | 4 km E | 1 km | 67 km NNE of Chignik, Alaska |
| Oct 7, 13:51 UTC | M2.0 | 43 km E | 100 km | 66 km S of Ugashik, Alaska |
| Oct 6, 23:47 UTC | M2.2 | 47 km SE | 92 km | 60 km NE of Chignik, Alaska |
| Oct 5, 13:03 UTC | M2.1 | 30 km ESE | 89 km | 69 km NE of Chignik, Alaska |
| Oct 4, 03:54 UTC | M2.2 | 28 km NE | 5 km | 58 km SSW of Ugashik, Alaska |
About Aniakchak
Aniakchak is a caldera in Alaska Peninsula, United States, rising to 1,341 m (4,400 ft). NOAA NCEI classes its eruptive history as "Historical".
A caldera is a large collapse depression left after a major eruption; activity can range from small steam blasts to rare, very large eruptions.
The volcano is remote: the nearest city in our list is Anchorage, 675 km away.
Flights and volcanic ash
No major hub airport is within 400 km (the closest is Ted Stevens Anchorage, 668 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 Chiginagak, 77 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.