Volcano in United States
Westdahl volcano: eruption status today
Updated
No eruption of Westdahl is being reported right now Last eruption: 1964 or later; last significant eruption 1820 (NOAA NCEI).
Live status of Westdahl: 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: 1820
- Elevation
- 1,563 m 5,128 ft
- Type
- Stratovolcano
- Earthquakes within 50 km
- 9 past 30 days (USGS)
- Hot spots within 10 km
- 0 latest NASA FIRMS VIIRS data
- Nearest city
- Anchorage 1143 km NE
Is Westdahl erupting right now?
There is no open NASA EONET event for Westdahl right now. NOAA NCEI dates its most recent eruption to 1964 or later, and the last eruption in its significant-eruption database was in 1820. 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 Westdahl
USGS located 9 earthquakes within 50 km of Westdahl in the past 30 days, 3 of them in the last week. The largest was M2.2 on Oct 17, 2026, 29 km ENE of the summit at 6 km depth.
7 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 25, 01:57 UTC | M1.4 | 49 km NE | 3 km | 42 km W of False Pass, Alaska |
| Oct 22, 04:56 UTC | M1.3 | 29 km ENE | 2 km | 59 km WSW of False Pass, Alaska |
| Oct 19, 07:14 UTC | M1.1 | 14 km NNW | 9 km | 85 km NE of Akutan, Alaska |
| Oct 18, 23:23 UTC | M1.7 | 28 km ENE | 19 km | 60 km WSW of False Pass, Alaska |
| Oct 17, 22:54 UTC | M2.2 | 29 km ENE | 6 km | 59 km WSW of False Pass, Alaska |
| Oct 16, 19:25 UTC | M1.8 | 30 km ENE | 9 km | 58 km WSW of False Pass, Alaska |
| Oct 13, 05:04 UTC | M0.7 | 8 km W | 27 km | 77 km ENE of Akutan, Alaska |
| Oct 10, 05:38 UTC | M0.6 | 1 km NE | 5 km | 85 km ENE of Akutan, Alaska |
| Sep 30, 17:36 UTC | M1.4 | 36 km NE | 2 km | 56 km WSW of False Pass, Alaska |
About Westdahl
Westdahl is a stratovolcano in Aleutian Is, United States, rising to 1,563 m (5,128 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 Anchorage, 1143 km away.
Flights and volcanic ash
No major hub airport is within 400 km (the closest is Ted Stevens Anchorage, 1136 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 Shishaldin, 51 km away.
Nearby volcanoes
Volcanoes in United States
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Data: NOAA NCEI Volcano Locations, NASA EONET (open volcano events), USGS earthquakes, NASA FIRMS (VIIRS hot spots), Smithsonian Global Volcanism Program.