Why did Newmont (ASX:NEM) suspend operations at the Cadia mine?

Newmont paused all underground operations at its Cadia gold and copper mine near Orange, NSW, following a 4.5 magnitude earthquake detected overnight. The company triggered emergency safety procedures and evacuated the site to ensure worker safety.

Are there any reported injuries or damage at the Newmont (ASX:NEM) Cadia site?

There have been no reported injuries following the seismic event. Newmont confirmed that all underground personnel were successfully accounted for and progressively returned to the surface.

How does the Cadia mine suspension affect Newmont (ASX:NEM) production?

While the duration of the pause is currently unspecified, any extended suspension at Cadia could impact Newmont’s quarterly production volumes for gold and copper.

What are the immediate risks for Newmont (ASX:NEM) shareholders after this news?

The primary short-term risk is operational uncertainty and the potential for a temporary spike in costs related to safety inspections and repairs. If the technical assessment reveals structural damage to the underground tunnels or machinery, the mine could face a prolonged shutdown.

What is the "bull case" for Newmont (ASX:NEM) despite the earthquake?

The bull case rests on the effectiveness of Newmont’s safety protocols, which successfully protected all staff and prevented a human tragedy. If the technical assessment concludes that the infrastructure is sound and operations resume quickly, the impact on the annual bottom line may be negligible.

What is the "bear case" for Newmont (ASX:NEM) following this event?

The bear case focuses on the potential for "geotechnical risk" to become a recurring theme at the Cadia site, which could lead to stricter regulatory oversight or higher insurance premiums.

How did the market react to the Newmont (ASX:NEM) news?

At the time of reporting, Newmont’s share price was $167.40. Investors are currently monitoring the situation for clarity on the length of the suspension. Significant price volatility may occur once the company provides a definitive timeline for the restart of operations or quantifies any expected impact on production guidance.

Newmont halts Cadia operations following earthquake

Written by Jon CuthbertPublished Apr. 15 2026Last Updated Apr. 15 2026

Newmont (ASX:NEM) has halted all underground operations at its Cadia gold and copper mine following a 4.5 magnitude earthquake detected in the region overnight.

The seismic event triggered immediate safety protocols, leading to a full evacuation of the site.

Management confirmed that all underground personnel have been safely accounted for and returned to the surface, with no injuries reported.

Operations remain suspended while technical teams conduct a thorough assessment of the underground infrastructure to ensure the site is stabilised before work resumes.

At the time of reporting, Newmont’s share price was $167.40.