MODERATE EARTHQUAKE
197 km WSW of Merizo Village, Guam
A magnitude 5.4 earthquake struck 197 km WSW of Merizo Village, Guam on 27 Oct 2026, 23:14 UTC. The hypocentre was 91.6 km below the surface — intermediate by seismological convention. No felt reports have been received so far. The figures have been revised 5 times since the first report. 1 other earthquake above our reporting threshold has been recorded within 250 km in the past 30 days.
- Depth
- 91.6 km
- Latitude
- 12.70°N
- Time
- 23:14 UTC
- Magnitude
- M5.4
intermediate
142.94°E longitude
27 Oct 2026
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EPICENTRE
MAGNITUDE 5.4
Can damage poorly constructed buildings; well-built structures usually escape with little harm.
The scale is logarithmic: this released about 130 times the energy of a magnitude 4.0, roughly the energy of 2 thousand tonnes of TNT.
91.6 KM DEEP
At this depth the energy spreads before it reaches the surface. Shaking is usually weaker than a shallow earthquake of the same size, but it can be felt across a wider area.
NEARBY IN THE PAST 30 DAYS
1 earthquake above our reporting threshold within 250 km of this one, the largest a magnitude 4.9.
OTHER RECENT EARTHQUAKES
27 Oct 2026, 23:43 UTC · 63.9 km deep
27 Oct 2026, 21:07 UTC · 10 km deep
27 Oct 2026, 18:57 UTC · 10 km deep
27 Oct 2026, 15:31 UTC · 509.1 km deep