4.2
EarthquakeModerate
M4.2 earthquake - 143 km WNW of Iwanai, Japan
3130 d ago · 23 Mar 2018, 10:34 UTC 143 km WNW of Iwanai, Japan
What happened
A magnitude 4.2 earthquake struck 143 km WNW of Iwanai, Japan on 23 Mar 2018, 10:34 UTC at a depth of 224 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 Yoichi, about 159 km away in Hokkaido, Japan.
Timeline
First reported by USGS
17 Oct 2026, 08:57 UTC
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Did you feel it?
Nearby in the last 30 days
No other events recorded within about 300 km in the last 30 days.