M4.9 earthquake - 43 km WNW of Happy Valley, Alaska
3354 d ago · 11 Aug 2017, 06:18 UTC 43 km WNW of Happy Valley, Alaska
A tsunami flag was raised for this event. This does not mean a tsunami occurred. Always follow official tsunami warning centres and local authorities.
What happened
A magnitude 4.9 earthquake struck 43 km WNW of Happy Valley, Alaska on 11 Aug 2017, 06:18 UTC at a depth of 96 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
The nearest town in our records is Anchorage, about 190 km away in Alaska, United States.
Timeline
First reported by USGS
17 Oct 2026, 08:41 UTC
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