🏙️ Malang

Indonesia · Population 845,973 · Elevation 444 m · Airport MLG

Volcanic Risk Profile

Malang is East Java's second-largest city, 50 km northwest of Mount Semeru — Java's tallest peak (3,676 m) and an extremely active stratovolcano. Semeru has erupted nearly continuously since 1818. Pyroclastic flows reaching the Curah Kobokan valley periodically threaten villages south of Malang.

Nearby Active Volcanoes

🌋 Mount Semeru50 km away

View live Volcash score and eruption history →

Distance from city center to Mount Semeru crater: 35 km (great-circle).

Notable Eruptions Affecting Malang

2021

Semeru

December 4 pyroclastic flow killed 51; 5,000 displaced; ash reached Malang briefly.

2022

Semeru

December 4 (anniversary) eruption; 2,000 evacuated; alert raised to Level 4.

2023

Semeru

Multiple ash plumes 4–6 km; Lumajang district under continuous alert.

Evacuation & Civil Protection

BPBD-Lumajang activates within minutes of PVMBG alert. 8 km exclusion zone at Awas (Level 4). Abdulrachman Saleh airport (MLG) is the primary aviation node.

Health & Air Quality

RSUD Saiful Anwar (Malang general hospital) is the regional pulmonary referral. PMI (Indonesian Red Cross) deploys mobile mask distribution within 12 hours.

Current Conditions

View real-time volcanic ash levels for Malang on the interactive 3D map.

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Activity Safety Thresholds

Volcash score limits beyond which each activity is no longer recommended for Malang residents:

Running≤ 50

3–5× breathing volume

Cycling≤ 50

High respiratory load

Hiking≤ 50

Mountain ash accumulation

Children outdoors≤ 30

Higher intake per body weight

Driving≤ 150

Visibility-limited

General outdoors≤ 100

Walking, shopping, commuting