Shallow M6.6 earthquake hits Southeast Indian Ridge
A shallow earthquake registered by the USGS as M6.6 hit the Southeast Indian Ridge at 01:42 UTC on April 16, 2025. The agency is reporting a depth of 10 km (6.2 miles).
Image credit: TW/SAM, Google
The epicenter was located 1 966 km (1 222 miles) SW of Augusta (population 1 362), and 2 035 km (1 265 miles) SW of Busselton, Western 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.
The quake was followed by M5.2 at 02:25 UTC at the same depth.
Regional seismicity
References:
1 M6.6 southeast Indian Ridge earthquake – USGS – April 16, 2025
2 M6.6 southeast Indian Ridge earthquake – EMSC – April 16, 2025
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