1. South Sandwich Islands Region

M 5.0 • 08:37:05 UTC

A magnitude 5.0 earthquake struck near South Sandwich Islands Region, on May 21, 2026, at 08:37:05 UTC. The quake originated at a depth of 127.8 km, according to seismic data.

At the time of the event, local weather conditions were not available.

Technical details of the earthquake were confirmed by EMSC and the USGS. Data may be subject to revision in the hours and days following the event.

2. Southern Iran

M 4.9 • 09:56:26 UTC

A magnitude 4.9 earthquake struck near Southern Iran, on May 21, 2026, at 09:56:26 UTC. The quake originated at a depth of 10.0 km, according to seismic data.

At the time of the event, local weather conditions were not available.

The epicenter was located in Iran, a Asia country covering approximately 1,648,195 square kilometers and home to more than 86.0 million people. The capital city is Tehran.

Technical details of the earthquake were confirmed by EMSC and the USGS. Data may be subject to revision in the hours and days following the event.

3. Southern East Pacific Rise

M 4.8 • 04:11:59 UTC

A magnitude 4.8 earthquake struck near Southern East Pacific Rise, on May 21, 2026, at 04:11:59 UTC. The quake originated at a depth of 10.0 km, according to seismic data.

At the time of the event, local weather conditions were not available.

Technical details of the earthquake were confirmed by EMSC and the USGS. Data may be subject to revision in the hours and days following the event.

4. Near Islands, Aleutian Islands

M 4.8 • 06:07:48 UTC

A magnitude 4.8 earthquake struck near Near Islands, Aleutian Islands, on May 21, 2026, at 06:07:48 UTC. The quake originated at a depth of 10.0 km, according to seismic data.

At the time of the event, local weather conditions were not available.

Technical details of the earthquake were confirmed by EMSC and the USGS. Data may be subject to revision in the hours and days following the event.

5. Tonga Islands

M 4.7 • 05:26:35 UTC

A magnitude 4.7 earthquake struck near Tonga Islands, on May 21, 2026, at 05:26:35 UTC. The quake originated at a depth of 278.0 km, according to seismic data.

At the time of the event, local weather conditions were not available.

Technical details of the earthquake were confirmed by EMSC and the USGS. Data may be subject to revision in the hours and days following the event.

Our editorial team carefully monitors seismic data to provide in-depth analysis. Explore our real-time interactive Live Map for more details.