20 Jul 2026, 05:38 UTC · Jul 20, 1:38 AM ET · PAGER green

M5.5 earthquake Pacific-Antarctic Ridge

A magnitude 5.5 earthquake struck Pacific-Antarctic Ridge at Jul 20, 1:38 AM ET, 10 km deep, moderate – felt widely, some damage to weak buildings.

M4.2 Pacific-Antarctic RidgeM4.5 Pacific-Antarctic RidgeM4.5 Pacific-Antarctic RidgeM4.6 Pacific-Antarctic RidgeM4.6 Pacific-Antarctic RidgeM5.0 Pacific-Antarctic RidgeM5.5 Pacific-Antarctic RidgeM5.7 Pacific-Antarctic Ridge
under 33–44–55–66+
Magnitude5.5 mww
Time20 Jul 2026, 05:38 UTC
Location-56.664°, -142.018° – Pacific-Antarctic Ridge
Depth10.0 km
Felt reports0
Max. estimated intensity (MMI)0.0
PAGER alertgreen
USGS eventus7000t213
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
5.7Pacific-Antarctic Ridge · PAGER greenNov 13, 4:41 AM
337 d ago
10 km–
5.0Pacific-Antarctic RidgeAug 20, 7:36 PM
57 d ago
10 km–
4.6Pacific-Antarctic RidgeApr 14, 7:32 PM
185 d ago
10 km–
4.6Pacific-Antarctic RidgeMar 31, 9:51 AM
199 d ago
10 km–
4.5Pacific-Antarctic RidgeJun 10, 1:01 PM
128 d ago
10 km–
4.5Pacific-Antarctic RidgeSep 27, 2:39 PM
384 d ago
10 km–
4.2Pacific-Antarctic RidgeDec 23, 12:31 PM
297 d ago
10 km–
FAQ

About this earthquake

How strong was the Pacific-Antarctic Ridge earthquake?

Magnitude 5.5 (mww), moderate – felt widely, some damage to weak buildings. Depth 10 km.

Was it felt?

No felt reports have been submitted to the USGS so far.

Were there aftershocks?

No earthquakes within 100 km have followed so far in our records.

Earthquakes

More

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.

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