What kind of volcano is San Miguel (Chaparrastique)?

San Miguel (Chaparrastique) is classified as a Stratovolcano in El Salvador. Its tectonic setting is Subduction zone / Continental crust (> 25 km).

How is seismicity near San Miguel (Chaparrastique) 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.

Symmetrical cone of San Miguel (Chaparrastique) volcano, El Salvador

Photo:Carlos Pullingervia Smithsonian GVP

Volcano Dossier•GVP #343100

13.43°N, 88.27°W

Erupted since 2000

Volcano San Miguel (Chaparrastique)

Yerel olarak Chaparrastique diye bilinen bu simetrik koni, El Salvador'un San Miguel şehrinin üzerinde yükselir ve 16. yüzyıldan beri lav akıntıları kaydedilen Orta Amerika'nın en aktif volkanlarından biridir. Aralık 2013'teki ani patlama binlerce kişiyi tahliyeye zorladı; ardından daha küçük kül patlamaları geldi, en sonuncusu 2023'te.

Last Eruption

2023

Erupted since 2000

Summit Elevation

2.1 km

Stratovolkan · Andezit / Bazaltik andezit

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.

Zaman	Büyüklük	Merkez Üssü / Konum	Mesafe	Derinlik
25d ago	M3.5	San Salvador'nin 79 km doğusunda (El Salvador)	27 km	5 km
25d ago	M3.1	San Salvador'nin 79 km doğusunda (El Salvador)	27 km	1.7 km
25d ago	M3.1	San Salvador'nin 78 km doğusunda (El Salvador)	28 km	2 km

Geological & Tectonic Profile

Stratovolkan

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

Edifice TypeStratovolkan

Major RockAndezit / Bazaltik andezit

Tectonic SettingDalma-batma zonu

Volcanic ArcCentral America volkanik yayı

Volcanic Dossier

VN #343100

Official catalogue parameters, coordinates, elevation and geotectonic classification.

ÜlkeEl Salvador

Krater koordinatları13.434°, -88.269°

Summit Elevation2.1 km

SubregionCentral America volkanik yayı

Catalog SourceSmithsonian GVP (#343100)

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 →

Sıkça Sorulan Sorular (SSS)

Doğrulanmış bilimsel, operasyonel ve acil durum protokolleri

The most recent eruption of San Miguel (Chaparrastique) recorded by the Smithsonian Global Volcanism Program was in 2023.

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