Update: 5.9 magnitude earthquake detected near Pacific-Antarctic Ridge on April 6

Published Apr 28, 2026

A 5.9 magnitude quake occurred near Pacific-Antarctic Ridge on Monday morning, according to the U.S. Geological Survey.

At 11:18 UTC (02:18 local time), a tremor shook the region at a depth of 10 km, with its epicenter of Pacific-Antarctic Ridge. Seismologists first reported it as a 5.6 event, but later upgraded it to 5.9.

Did you feel it?

If you noticed the earthquake, you can share your experience using the USGS Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage.

Structure information summary
There are likely to be no affected structures in this region.

Source: The U.S. Geological Survey