What kind of volcano is Tengger (Bromo)?

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

How is seismicity near Tengger (Bromo) 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.

Mount Bromo volcano steaming at sunrise across the Sea of Sand in Java

Photo:Faris Hadziqvia Unsplash

Volcano Dossier•GVP #263310

7.94°S, 112.95°E

Erupted since 2000

Indonesia→

Volcano Tengger (Bromo)

The smoking cone of Bromo rises from the 'sea of sand' inside the Tengger caldera in East Java, one of Indonesia's most visited landscapes. Small ash eruptions are common, and the crater rim where tourists and Tenggerese pilgrims gather for the Yadnya Kasada festival lies only a few hundred metres from the vent.

Last eruption

2023

Erupted since 2000

Summit

2.3 km

Stratovolcano · Trachyandesite

Activity

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.

Time	Magnitude	Epicenter / Place	Distance	Depth
76d ago	M2.8	JAVA, INDONESIA (BMKG)	28 km	16 km
80d ago	M2.5	JAVA, INDONESIA (BMKG)	41 km	116 km
83d ago	M2.6	JAVA, INDONESIA (BMKG)	23 km	22 km

Geological & Tectonic Profile

Stratovolcano

Tengger (Bromo) is an active Stratovolcano formed in an active Subduction zone / Continental crust (> 25 km). Dominant lithology: Trachyandesite.

Edifice TypeStratovolcano

Major rockTrachyandesite

TectonicsSubduction zone

Volcanic ArcSunda Volcanic Arc

Volcano Dossier

VN #263310

Official catalogue parameters, coordinates, elevation and geotectonic classification.

CountryIndonesia

Crater Coordinates-7.942°, 112.950°

Summit2.3 km

SubregionSunda Volcanic Arc

Catalog SourceSmithsonian GVP (#263310)

Authoritative Monitoring Infrastructure

All 18 Networks & VAAC →

Seismic ObservatoryBMKG / PVMBG

Badan Meteorologi, Klimatologi, dan Geofisika / PVMBG

Official Portal

ICAO Aviation Ash Center

Darwin VAAC (Bureau of Meteorology)

Darwin, Australia

VAAC Advisory Desk

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

Regional Seismic Profile

Java & Sunda Strait

Explore live seismic monitoring, historical danger benchmarks, fault slip models and recurrence intervals for Java & Sunda Strait.

Open Regional Hub

Frequently Asked Questions (FAQ)

Verified scientific, operational, and emergency protocols

The most recent eruption of Tengger (Bromo) recorded by the Smithsonian Global Volcanism Program was in 2023.

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