Dukono Volcano

The May 8, 2026 Eruption: What Happened

At 7:41 AM local time on May 8, 2026, Mount Dukono erupted with a blast that lasted approximately 16 minutes. The ash column punched 10,000 meters above the summit — roughly 11 km above sea level — in a thick column of white, grey, and black ash that drifted north over the Molucca Sea.

Twenty hikers were on or near the crater when it blew. Nine were Singaporean nationals, eleven Indonesian. The group had been organized by The Outside, a Singapore-based travel company run by 30-year-old Timothy Heng. It was billed as a "beginner-friendly" 11-day expedition to climb three volcanoes in North Maluku — despite two of them being, in the company's own words, "constantly erupting."

Indonesian authorities had banned climbing since April 17, after activity intensified with 76 eruptions recorded in a single week. The hikers entered the 4 km exclusion zone anyway.

Rescue Timeline: 100 Personnel, 2 Thermal Drones

The rescue operation involved nearly 100 personnel — military, police, and disaster response teams — plus two thermal-imaging drones deployed to locate survivors in the ash-covered terrain. Seventeen of the twenty hikers were evacuated alive by Friday evening, with ten suffering minor burns.

"Driven by the Desire to Create Online Content"

That quote comes directly from the North Halmahera police chief. It's worth sitting with for a moment.

The expedition was advertised on Instagram as a "beginner-friendly" volcano adventure. The trip listing promoted climbing "two constantly erupting volcanoes" across 11 days (April 30 to May 10). Heng had organized the trip with mountain guide Reza Selang for nearly a year, discussing routes, pricing, equipment, and emergency arrangements.

Selang, a part-time guide and drone videographer based in North Maluku, said he guided tourists up Dukono at least once a month. He'd taken foreign tourists up twice in 2026 before the fatal trip. After the incident, he posted an Instagram apology: "I want to kneel at the victims' parents' feet." He claimed he was unaware of the April 17 climbing ban — a claim Indonesian authorities are investigating.

Signs warning of the exclusion zone were posted. Indonesia's Center for Volcanology and Geological Hazard Mitigation (PVMBG) had issued repeated warnings since March. Despite this, according to local police, "many people remain determined to climb."

By VolcanoDB Research Team. Sources: CNN, NBC News, Al Jazeera, Washington Post, Mothership.sg, Smithsonian GVP (#268010), PVMBG, Singapore MFA.

93 Years Without Stopping: Dukono's Eruption History

Dukono isn't a volcano that occasionally erupts — it's a volcano that hasn't stopped erupting in nearly a century. The Smithsonian Global Volcanism Program records continuous explosive activity since 1933. That makes Dukono one of the longest unbroken eruptions on Earth, rivaling Sakurajima (erupting since 1955) and Stromboli (over 2,000 years).

The volcano sits at the northern tip of Halmahera Island in North Maluku. It's a complex stratovolcano with a broad, low profile and seven craters — Tanah Lapang, Dilekene A, Dilekene B, Malupang Magiwe, Telori, Crater E, and Heneowara. The currently active vent, Malupang Warirang, sits about 1 km southwest of the main summit complex and contains a 700 x 570 m crater.

The 1550 eruption is particularly striking: it was powerful enough (VEI 3) to send a lava flow 10 km northeast, filling a strait and permanently connecting Halmahera to the cone of Gunung Mamuya. That's not a metaphor — the lava literally created a land bridge. View Dukono's complete database entry for the full eruption record.

March–May 2026: How Activity Escalated

Dukono's 2026 escalation wasn't sudden. PVMBG had been tracking an intensifying pattern since March:

• March 30: 199 explosive events recorded in a single monitoring period — a dramatic spike from baseline.
• April 7: 76 eruptions recorded in one week. Ash columns becoming more frequent.
• April 15: Four eruptions in a single day. Ash column reached 2.5 km above the summit.
• April 17: PVMBG prohibited climbing and established a 4 km exclusion zone around Malupang Warirang crater.
• April 20: Another eruption sent ash 1.4 km above the summit.
• May 8: The fatal eruption — 10 km ash column, 4 harmonic tremor episodes, 3 dead.

GDACS (Global Disaster Alerting Coordination System) issued an Orange alert following the May 8 eruption. Volcanic Ash Advisories continued through May 11, with ash reaching FL150 (~15,000 ft / 4,600 m). No commercial flights were disrupted — the ash trajectory didn't intersect major regional flight paths.

Indonesia's Multi-Volcano Crisis: 7 Erupting Simultaneously

Dukono didn't erupt in isolation. As of May 2026, Indonesia has at least 7 volcanoes in active eruption — an unusually high count even for the world's most volcanic country. MAGMA Indonesia has recorded 1,849 volcanic eruptions across the archipelago in 2026 alone.

And it's not just Indonesia. Across the Ring of Fire, Mayon Volcano in the Philippines has been at Alert Level 3 since May 2, with pyroclastic flows and over 102,000 people affected. Taal erupted on May 7, one day before Dukono. Multiple Philippine volcanoes were simultaneously active during the same week.

This isn't coincidence — it's geology. Indonesia sits at the convergence of three tectonic plates: the Eurasian, Indo-Australian, and Pacific plates. With 138 volcanoes in our database, of which 83 have recorded eruptions, having multiple active simultaneously is common. But the current concentration is noteworthy.

Volcano Hiking Safety: What the Dukono Tragedy Teaches

I want to be clear: hiking active volcanoes is not inherently reckless. Millions of people hike Mount Etna every year, Stromboli has guided night hikes to watch eruptions, and Japan's Sakurajima hosts observation points within view of daily eruptions. What killed these three people wasn't volcano tourism — it was entering a restricted zone during elevated activity.

The takeaway for anyone planning volcano trips: exclusion zones are set by volcanologists using seismic data, gas measurements, and pyroclastic flow modeling. They're not arbitrary bureaucratic lines. When PVMBG says "4 km from the crater," they mean that a pyroclastic flow or ballistic projectile could reach that distance with little to no warning.

Before climbing any volcano, check the alert level with the local monitoring agency: PVMBG for Indonesia, PHIVOLCS for the Philippines, USGS for the United States, INGV for Italy. If a volcano is above baseline alert with an exclusion zone — no Instagram shot is worth what happened on Dukono.

Frequently Asked Questions