Volcano Redoubt
An ice-covered stratovolcano about 180 km southwest of Anchorage. On 15 December 1989 a KLM Boeing 747 flew into its ash cloud and lost all four engines before restarting them and landing safely, an incident that helped create today's global system of volcanic ash advisories. It erupted again in 2009.
Last eruption
2009
Erupted since 2000
Summit
3.1 km
Stratovolcano · Andesite / Basaltic Andesite
Activity
Normal Baseline
2 events (2.1x rate)
Interactive Volcano & Seismicity Map
Seismicity within 50 km radius, active VAAC ash plumes, and tectonic plate boundaries.
Recent seismicity within 50 km
2 events in the last 12 h within 25 km of the crater.2.1x this volcano’s usual rate.
| Time | Magnitude | Epicenter / Place | Distance |
|---|---|---|---|
| 3h ago | M0.4 | 77 km NW of Ninilchik, Alaska | 1.3 km |
| 10h ago | M0.8 | 54 km WNW of Ninilchik, Alaska | 23 km |
| 1d ago | M1.5 | 39 km NW of Ninilchik, Alaska | 37 km |
| 1d ago | M0.9 | 65 km WNW of Ninilchik, Alaska | 15 km |
| 1d ago | M0.5 | 64 km ENE of Pedro Bay, Alaska | 48 km |
| 1d ago | M1.4 | 40 km W of Salamatof, Alaska | 39 km |
| 1d ago | M0.5 | 71 km WNW of Ninilchik, Alaska | 8.5 km |
| 1d ago | M1.4 | 55 km WNW of Happy Valley, Alaska | 46 km |
| 1d ago | M0.8 | 58 km WNW of Ninilchik, Alaska | 33 km |
| 2d ago | M0.6 | 78 km WNW of Ninilchik, Alaska | 11 km |
| 2d ago | M0.7 | 66 km WNW of Ninilchik, Alaska | 29 km |
| 2d ago | M1.9 | 62 km NW of Ninilchik, Alaska | 15 km |
| 4d ago | M0.8 | 61 km WNW of Ninilchik, Alaska | 33 km |
| 4d ago | M2.9 | 35 km WNW of Kalifornsky, Alaska | 45 km |
| 5d ago | M1.5 | 47 km WNW of Ninilchik, Alaska | 30 km |
| 5d ago | M2.1 | 71 km E of Port Alsworth, Alaska | 38 km |
| 5d ago | M1.7 | 39 km NW of Ninilchik, Alaska | 40 km |
| 5d ago | M1.5 | 48 km W of Salamatof, Alaska | 34 km |
| 5d ago | M0.2 | 67 km ENE of Pedro Bay, Alaska | 49 km |
| 6d ago | M1.1 | 53 km W of Salamatof, Alaska | 32 km |
| 6d ago | M1.7 | 65 km WNW of Happy Valley, Alaska | 47 km |
| 6d ago | M1.8 | 62 km WNW of Happy Valley, Alaska | 40 km |
| 6d ago | M2.7 | 66 km WNW of Happy Valley, Alaska | 41 km |
| 6d ago | M1.9 | 66 km WNW of Ninilchik, Alaska | 18 km |
| 6d ago | M0.4 | 81 km NW of Ninilchik, Alaska | 7.4 km |
| 7d ago | M1.2 | 52 km WNW of Ninilchik, Alaska | 33 km |
| 7d ago | M0.9 | 70 km ENE of Port Alsworth, Alaska | 23 km |
| 7d ago | M1.1 | 43 km NW of Ninilchik, Alaska | 34 km |
| 7d ago | M-0.7 | 71 km NW of Ninilchik, Alaska | 5.6 km |
| 7d ago | M0.4 | 76 km NW of Ninilchik, Alaska | 1.8 km |
| 7d ago | M2.0 | 71 km WNW of Happy Valley, Alaska | 38 km |
| 7d ago | M-0.6 | 79 km NW of Ninilchik, Alaska | 3.1 km |
| 7d ago | M-0.7 | 66 km ENE of Pedro Bay, Alaska | 50 km |
| 8d ago | M2.9 | 37 km WNW of Ninilchik, Alaska | 44 km |
| 9d ago | M1.8 | 60 km WNW of Happy Valley, Alaska | 41 km |
| 9d ago | M1.8 | 38 km W of Salamatof, Alaska | 45 km |
| 9d ago | M-0.8 | 76 km W of Salamatof, Alaska | 9.2 km |
| 9d ago | M0.2 | 71 km WNW of Happy Valley, Alaska | 43 km |
| 9d ago | M0.7 | 71 km NW of Ninilchik, Alaska | 6.1 km |
| 9d ago | M1.9 | 36 km W of Kalifornsky, Alaska | 43 km |
| 9d ago | M1.9 | 66 km WNW of Happy Valley, Alaska | 46 km |
| 10d ago | M0.6 | 51 km E of Port Alsworth, Alaska | 45 km |
| 10d ago | M0.2 | 74 km NW of Ninilchik, Alaska | 2.3 km |
| 10d ago | M0.3 | 76 km NW of Ninilchik, Alaska | 5.3 km |
| 10d ago | M0.7 | 80 km NW of Ninilchik, Alaska | 5.3 km |
| 10d ago | M0.5 | 74 km NW of Ninilchik, Alaska | 1.9 km |
| 11d ago | M2.5 | 70 km E of Port Alsworth, Alaska | 29 km |
| 11d ago | M1.2 | 49 km E of Port Alsworth, Alaska | 49 km |
| 11d ago | M1.1 | 51 km WNW of Happy Valley, Alaska | 43 km |
| 11d ago | M0.7 | 66 km E of Port Alsworth, Alaska | 45 km |
| 11d ago | M1.7 | 34 km NW of Ninilchik, Alaska | 43 km |
| 11d ago | M1.4 | 48 km W of Ninilchik, Alaska | 41 km |
| 11d ago | M2.8 | 58 km WNW of Happy Valley, Alaska | 46 km |
| 11d ago | M1.0 | 58 km NW of Ninilchik, Alaska | 18 km |
| 12d ago | M1.6 | 38 km NW of Ninilchik, Alaska | 39 km |
| 12d ago | M1.3 | 40 km W of Nikiski, Alaska | 47 km |
| 12d ago | M1.4 | 41 km WNW of Happy Valley, Alaska | 47 km |
| 12d ago | M-1.1 | 78 km W of Salamatof, Alaska | 3.8 km |
| 12d ago | M-0.7 | 70 km NW of Ninilchik, Alaska | 6.3 km |
| 13d ago | M2.1 | 48 km WNW of Happy Valley, Alaska | 49 km |
| 13d ago | M-0.4 | 68 km WNW of Ninilchik, Alaska | 23 km |
| 13d ago | M0.6 | 77 km NW of Ninilchik, Alaska | 2.6 km |
| 13d ago | M1.0 | 77 km NW of Ninilchik, Alaska | 1.5 km |
| 13d ago | M-0.2 | 84 km W of Salamatof, Alaska | 19 km |
| 14d ago | M-0.6 | 78 km NW of Ninilchik, Alaska | 2.3 km |
| 14d ago | M1.6 | 61 km WNW of Happy Valley, Alaska | 46 km |
| 15d ago | M1.6 | 67 km WNW of Ninilchik, Alaska | 15 km |
| 15d ago | M-0.8 | 75 km NW of Ninilchik, Alaska | 2.4 km |
| 15d ago | M0.9 | 68 km WNW of Happy Valley, Alaska | 46 km |
| 15d ago | M0.4 | 81 km NW of Ninilchik, Alaska | 6.7 km |
| 15d ago | M-0.8 | 68 km ENE of Pedro Bay, Alaska | 49 km |
| 15d ago | M0.8 | 79 km NW of Ninilchik, Alaska | 2.8 km |
| 15d ago | M-0.4 | 71 km WNW of Happy Valley, Alaska | 45 km |
| 16d ago | M0.4 | 71 km WNW of Happy Valley, Alaska | 40 km |
| 16d ago | M-1.0 | 83 km NW of Ninilchik, Alaska | 7.7 km |
| 16d ago | M-0.8 | 64 km ENE of Pedro Bay, Alaska | 49 km |
| 16d ago | M-0.5 | 80 km W of Salamatof, Alaska | 4.4 km |
| 16d ago | M1.5 | 44 km W of Cohoe, Alaska | 35 km |
| 16d ago | M2.3 | 48 km NW of Ninilchik, Alaska | 30 km |
| 16d ago | M1.7 | 46 km WNW of Ninilchik, Alaska | 35 km |
| 16d ago | M0.6 | 61 km E of Port Alsworth, Alaska | 43 km |
| 16d ago | M0.9 | 73 km ENE of Port Alsworth, Alaska | 21 km |
| 17d ago | M0.7 | 74 km ENE of Port Alsworth, Alaska | 18 km |
| 17d ago | M2.5 | 73 km WNW of Ninilchik, Alaska | 16 km |
| 17d ago | M-0.2 | 71 km NW of Ninilchik, Alaska | 7.7 km |
| 17d ago | M-0.4 | 69 km W of Salamatof, Alaska | 13 km |
| 17d ago | M-0.4 | 69 km W of Salamatof, Alaska | 13 km |
| 17d ago | M0.9 | 54 km E of Port Alsworth, Alaska | 48 km |
| 19d ago | M1.6 | 49 km WNW of Ninilchik, Alaska | 31 km |
| 19d ago | M2.3 | 58 km WNW of Nikiski, Alaska | 46 km |
| 19d ago | M1.3 | 63 km E of Port Alsworth, Alaska | 45 km |
| 20d ago | M2.6 | 70 km WNW of Happy Valley, Alaska | 36 km |
| 20d ago | M0.2 | 68 km ENE of Pedro Bay, Alaska | 48 km |
| 20d ago | M0.9 | 57 km W of Salamatof, Alaska | 23 km |
| 20d ago | M0.3 | 68 km ENE of Pedro Bay, Alaska | 45 km |
| 21d ago | M2.0 | 79 km NE of Port Alsworth, Alaska | 27 km |
| 21d ago | M0.5 | 73 km NW of Ninilchik, Alaska | 3.6 km |
| 21d ago | M1.3 | 66 km WNW of Nikiski, Alaska | 43 km |
| 21d ago | M1.7 | 47 km W of Salamatof, Alaska | 32 km |
| 21d ago | M0.7 | 60 km E of Port Alsworth, Alaska | 47 km |
| 21d ago | M0.5 | 73 km WNW of Happy Valley, Alaska | 39 km |
| 21d ago | M1.8 | 49 km WNW of Ninilchik, Alaska | 29 km |
| 22d ago | M1.5 | 40 km NW of Ninilchik, Alaska | 38 km |
| 22d ago | M1.4 | 67 km WNW of Ninilchik, Alaska | 35 km |
| 22d ago | M0.3 | 60 km WNW of Ninilchik, Alaska | 18 km |
| 22d ago | M-0.7 | 65 km ENE of Pedro Bay, Alaska | 49 km |
| 22d ago | M-0.8 | 68 km ENE of Pedro Bay, Alaska | 49 km |
| 22d ago | M-0.8 | 75 km NW of Ninilchik, Alaska | 2.3 km |
| 23d ago | M1.1 | 56 km W of Salamatof, Alaska | 26 km |
| 23d ago | M0.9 | 64 km NW of Ninilchik, Alaska | 15 km |
| 23d ago | M2.1 | 51 km WSW of Salamatof, Alaska | 28 km |
| 23d ago | M0.6 | 56 km WNW of Ninilchik, Alaska | 31 km |
| 23d ago | M0.6 | 69 km WNW of Ninilchik, Alaska | 16 km |
| 23d ago | M-0.7 | 76 km NW of Ninilchik, Alaska | 3.0 km |
| 23d ago | M-0.5 | 75 km NW of Ninilchik, Alaska | 2.9 km |
| 23d ago | M-1.3 | 66 km ENE of Pedro Bay, Alaska | 49 km |
| 24d ago | M2.2 | 70 km WNW of Happy Valley, Alaska | 41 km |
| 24d ago | M2.9 | 50 km WNW of Ninilchik, Alaska | 30 km |
| 24d ago | M0.9 | 69 km ENE of Pedro Bay, Alaska | 49 km |
| 25d ago | M0.8 | 76 km ENE of Port Alsworth, Alaska | 18 km |
| 25d ago | M1.3 | 45 km WNW of Ninilchik, Alaska | 36 km |
| 25d ago | M1.6 | 35 km WNW of Clam Gulch, Alaska | 44 km |
| 25d ago | M2.0 | 69 km E of Port Alsworth, Alaska | 35 km |
| 26d ago | M1.3 | 74 km W of Salamatof, Alaska | 23 km |
Geological & Tectonic Profile
StratovolcanoRedoubt is an active Stratovolcano formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Andesite / Basaltic Andesite.
Edifice TypeStratovolcano
Major rockAndesite / Basaltic Andesite
TectonicsSubduction zone
Volcanic ArcAlaska Peninsula Volcanic Arc
Volcano Dossier
VN #313030Official catalogue parameters, coordinates, elevation and geotectonic classification.
CountryUnited States
Crater Coordinates60.485°, -152.742°
Summit3.1 km
SubregionAlaska Peninsula Volcanic Arc
Catalog SourceSmithsonian GVP (#313030)
Authoritative Monitoring Infrastructure
Swarm telemetry correlated across 18 networks against a 30-day baseline.Read Science & Physics →
Regional Seismic Profile
Alaska & Aleutian Arc
Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Alaska & Aleutian Arc.
Open Regional HubFrequently Asked Questions (FAQ)
Verified scientific, operational, and emergency protocols
The most recent eruption of Redoubt recorded by the Smithsonian Global Volcanism Program was in 2009.
Catalogue: Smithsonian Institution, Global Volcanism Program.Smithsonian GVP profile