Shallow M6.0 earthquake hits southeast Indian Ridge
A shallow earthquake registered by the USGS as M6.0 struck southeast Indian Ridge at 20:53 UTC on October 31, 2025. The agency is reporting a depth of 10 km (6.2 miles). No tsunami warning was issued.
Epicenter of M6.0 earthquake in southeast Indian Ridge on October 31, 2025. Credit: TW/SAM, Google
The epicenter was located 1 964 km (1 220 miles) WSW of Augusta (population 1 362) and 2 027 km (1 259 miles) WSW of Busselton (population 21 898), Australia.
There is no tsunami threat from this earthquake.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
There are likely to be no affected structures in this region.

Estimated population exposure to earthquake shaking


Regional seismicity

References:
1 M6.0 earthquake southeast Indian Ridge — USGS — October 31, 2025
2 M6.0 earthquake southeast Indian Ridge — EMSC — October 31, 2025
Rishav Kothari is Editor-in-Chief of The Watchers, where he runs the newsroom and covers earthquakes, volcanoes, severe weather and space weather.


