September 25, 2025
Web desk
A magnitude-4.1 earthquake struck Tasmania’s south-west near Edgar Dam early Thursday morning, shaking areas from Maydena to Hobart. The tremor occurred at 6:38 a.m. at a depth of 14.41 km and was felt by residents across the region. No damage has been reported so far.
Residents near the epicentre, including Strathgordon, described the quake as resembling a prolonged thunderclap. Sarah, a local, said, “It felt like a really loud thunderclap that shakes the house and shakes your internals almost, but it carried on for a lot longer than a normal thunderclap.”
The earthquake occurred along a known fault line near Lake Pedder, close to Edgar Dam and Scotts Peak Dam. Hydro Tasmania, which is currently upgrading Edgar Dam to strengthen it, confirmed the seismic monitoring system was triggered but stated there is no immediate cause for concern. The upgrade is expected to be completed by mid-2026.
Officials noted that the dam would likely only face significant risk from a magnitude-6 earthquake or higher, a scenario estimated to occur once every 10,000 years. Hydro Tasmania continues to monitor the area, reassuring residents that the probability of damage from today’s tremor is extremely low.
