Apagado

Pyroclastic cone in Chile

Last Eruption: -590

Key Facts

Elevation

1,210 m (3,970 ft)

Type

Pyroclastic cone

Location

-41.880°, -72.580°

Region

Southern Andean Volcanic Arc

Rock Type

Basalt / Picro-Basalt

Tectonic Setting

Subduction zone

Location

Loading map...

Overview

Volcán Apagado, also known as Hualiaque, is located W of Hornopirén volcano and SW of Yate on the peninsula between the Gulf of Ancud and the Reloncaví estuary. The sparsely vegetated pyroclastic cone contains a well-preserved summit crater; scoria deposits have a calibrated age of about 2,500 years BP. A 6-km-wide depression open to the SW mentioned by González-Ferrán (1995), and a small lava flow passing through that breach, are not prominent on satellite imagery.

Volcanic Hazards & Risk Assessment

Primary Hazards

Risk Level

Population at RiskModerate

Infrastructure RiskModerate

Aviation RiskSignificant

Geological Composition & Structure

Rock Types

Primary

Basalt / Picro-Basalt

Silica Content

Low (45-52% SiO₂)

Tectonic Setting

Subduction zone

Formed by oceanic plate subduction, typically producing explosive eruptions due to water-rich magmas.

Age & Formation

Epoch

Holocene

Evidence

Eruption Dated

Eruption Statistics & Analysis

Metric	Value	Global Ranking	Significance
Total Recorded Eruptions	Unknown	Low	Moderately active volcano
Maximum VEI	VEI Unknown	Minor	Local impact potential
Recent Activity	2616 years ago	Historical	Historically active

Monitoring & Alert Status

Monitoring Networks

Global Volcanism Program

International eruption database

Current Status

Normal

No recent activity. Routine monitoring continues.

Nearby Volcanoes in South America Volcanic Regions

Regional Volcanic Activity

The South America Volcanic Regions contains multiple active volcanic systems. Cross-regional magma interactions and tectonic stresses can influence eruption patterns across the entire arc. Monitor regional seismic activity and volcanic alerts.

Quick Info

•Smithsonian ID: 358024
•Evidence: Eruption Dated
•Epoch: Holocene

About the Photo

The sparsely vegetated pyroclastic cone at the lower right with a strip of snow on its crater rim is Volcán Apagado, also known as Hualiaque. Seen in an aerial view from the NW with the rugged snow-capped Chilean Andes in the background, it lies in the center of the peninsula between the Gulf of Ancud and the Reloncaví estuary. The pyroclastic cone lies within a 6-km-wide depression breached to the SW. The broad symmetrical Hornopirén volcano, capped by snow fields, lies to the east of Apagado at the left center.

Photo by Gerald Prins, 2008 (Wikimedia Commons).