What kind of volcano is Sangay?

Sangay is classified as a Stratovolcano in Ecuador. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near Sangay monitored here?

Earthquakes within 50 km of the crater are aggregated from 18 seismic networks and checked against a swarm rule that compares the current rate with this volcano's own 30-day background. Ash advisories come from the VAAC centres that are connected.

Ash plume rising from Sangay volcano above the Ecuadorian Amazon

Photo:Minard Hallvia Smithsonian GVP

Volcano Dossier•GVP #352090

2.00°S, 78.34°W

Erupted since 2000

Volcano Sangay

Der aus dem Regenwald am Rand des Amazonas aufragende Sangay bricht seit mindestens 1628 fast ohne Pause aus und ist damit einer der beständigsten aktiven Vulkane der Erde. Er liegt so abgelegen, dass er lange vor allem per Satellit beobachtet wurde, doch seine Aschewolken bestäubten 2020 Orte in mehreren Provinzen Ecuadors.

Last Eruption

2026

Erupted since 2000

Summit Elevation

5.3 km

Stratovulkan · Andesit / Basaltandesit

Seismic State

Normal Baseline

0 events (1.0x rate)

Interactive Volcano & Seismicity Map

Seismicity within 50 km radius, active VAAC ash plumes, and tectonic plate boundaries.

Recent seismicity within 50 km

0 events in the last 12 h within 25 km of the crater.

Zeit	Magnitude	Epizentrum / Ort	Entfernung	Tiefe
23d her	M4.1	27 km WSW of Palora, Ecuador	30 km	164.3 km
62d her	M3.2	ECUADOR (QUI)	39 km	162 km

Geological & Tectonic Profile

Stratovulkan

Sangay is an active Stratovolcano formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Andesite / Basaltic Andesite.

Edifice TypeStratovulkan

Major RockAndesit / Basaltandesit

Tectonic SettingSubduktionszone

Volcanic ArcVulkanbogen der Nordanden

Volcanic Dossier

VN #352090

Official catalogue parameters, coordinates, elevation and geotectonic classification.

LandEcuador

Koordinaten des Kraters-2.005°, -78.341°

Summit Elevation5.3 km

SubregionVulkanbogen der Nordanden

Catalog SourceSmithsonian GVP (#352090)

Authoritative Monitoring Infrastructure

All 18 Networks & VAAC →

Seismic ObservatoryGSN / FDSN

Global Seismographic Network & Regional Centers

Official Portal

ICAO Aviation Ash Center

ICAO Volcanic Ash Advisory Network

International Civil Aviation Organization

VAAC Advisory Desk

Swarm telemetry correlated across 18 networks against a 30-day baseline.Read Science & Physics →

Häufig gestellte Fragen (FAQ)

Geprüfte wissenschaftliche, operative und Notfallprotokolle

The most recent eruption of Sangay recorded by the Smithsonian Global Volcanism Program was in 2026.

Catalogue: Smithsonian Institution, Global Volcanism Program.Smithsonian GVP profile