Deadly Landslide in Papua New Guinea Linked to Tropical Cyclone Maila Kills 10, Injures 18

A devastating landslide in Papua New Guinea’s Lamarain region on 9 April 2026 resulted in the deaths of 10 people and left 18 others injured. The disaster was directly linked to intense rainfall associated with the passage of Tropical Cyclone Maila.

The landslide occurred in the Inland Baining Local-Level Government (LLG) area of Gazelle District, Papua New Guinea. Located at approximately [-4.2548, 151.7811], this remote and rugged terrain presents significant challenges for emergency response and accurate reporting.

Timeline and Phases of the Disaster

According to The Post Courier, the Lamarain landslide unfolded in two distinct phases:

• First phase: Occurred at 6:00 AM on 9 April 2026.
• Second phase: Struck 24 hours later, on 10 April 2026.

However, conflicting reports suggest the landslide may have occurred on 12 April 2026, underscoring the difficulties in verifying information in Papua New Guinea’s remote and often unstable regions.

Geological Characteristics of the Landslide

Analysis of the event reveals several key geological features:

• The landslide initiated at a high point on the hillslope, where a mix of forested and cleared areas existed.
• The failure zone was large and deep-seated, transitioning into a disrupted debris slide/avalanche with significant material entrainment.
• Multiple fresh landslides were observed in the surrounding area, indicating that the intense rainfall from Tropical Cyclone Maila triggered widespread slope failures.
• Notably, the event did not involve multiple shallow landslides combining into a channelized debris flow.

Challenges in Reporting and Response

Reporting on landslides in Papua New Guinea’s remote areas is fraught with difficulties due to:

• Rugged terrain that complicates access for emergency responders.
• Civil unrest in certain regions, which hinders both rescue efforts and accurate data collection.
• Limited communication infrastructure, making real-time updates nearly impossible.

The most reliable source of information came from the Facebook page of NBC East New Britain, which posted a helicopter video of the aftermath. A still image from this footage is shown below:

This visual evidence provides critical insights into the scale and impact of the disaster.

Conclusion

The Lamarain landslide serves as a tragic reminder of the devastating consequences of extreme weather events in vulnerable regions. The challenges of reporting and responding to such disasters in Papua New Guinea highlight the urgent need for improved infrastructure, communication, and emergency preparedness in remote areas.