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

Erguendo-se da floresta tropical à beira da Amazónia, o Sangay está em erupção quase sem pausa desde pelo menos 1628, o que faz dele um dos vulcões mais persistentemente ativos da Terra. É tão remoto que durante muito tempo foi vigiado sobretudo por satélite, mas as suas colunas de cinza de 2020 cobriram localidades de várias províncias do Equador.

Last Eruption

2026

Erupted since 2000

Summit Elevation

5.3 km

Estratovulcão · Andesito / Andesito basáltico

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.

Hora	Magnitude	Epicentro / local	Distância	Profundidade
23d atrás	M4.1	27 km WSW of Palora, Ecuador	30 km	164.3 km
62d atrás	M3.2	ECUADOR (QUI)	39 km	162 km

Geological & Tectonic Profile

Estratovulcão

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

Edifice TypeEstratovulcão

Major RockAndesito / Andesito basáltico

Tectonic SettingZona de subducção

Volcanic ArcArco vulcânico dos Andes do Norte

Volcanic Dossier

VN #352090

Official catalogue parameters, coordinates, elevation and geotectonic classification.

PaísEquador

Coordenadas da cratera-2.005°, -78.341°

Summit Elevation5.3 km

SubregionArco vulcânico dos Andes do Norte

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 →

Perguntas frequentes (FAQ)

Protocolos científicos, operacionais e de emergência verificados

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