M6.6 earthquake in Southern East Pacific Rise on May 20, 2026

Strong M6.6 quake: May 20, 2026, 17:43 UTC, epicenter Southern East Pacific Rise. The rupture began 10 km below the surface. It was a shallow quake, and shallow quakes are usually felt most strongly at the surface.

6.6magnitude
10 kmdepth
17:43time UTC
greenUSGS alert

Key facts

7 people reported feeling it to USGS. The USGS PAGER system issued a green alert, expecting little impact.

Nearest cities

  • Punta Arenas (Chile)3,250 km
  • Port Montt (Chile)3,861 km
  • Comodoro Rivadavia (Argentina)3,889 km
  • Osorno (Chile)3,916 km
  • Valdivia (Chile)3,967 km

Did you feel an earthquake?

Report it to seismologists. These reports help work out quickly where the shaking was strongest. It takes a minute.

Aftershocks

Since then USGS has recorded 3 quakes of magnitude 4.5 or more within 150 km, the strongest M5.5.

  • M5.5 · May 20, 18:36 UTC56 km
  • M4.8 · Sep 22, 03:30 UTC60 km
  • M4.7 · Jun 1, 21:51 UTC46 km

Regional history

Since 1976 there have been 26 earthquakes of magnitude 6 or more within 300 km. The strongest was M6.7 (August 6, 2001).

  • M6.7 · August 6, 200187 km
  • M6.4 · April 7, 198544 km
  • M6.3 · November 15, 201831 km
  • M6.3 · September 8, 199526 km
  • M6.3 · October 13, 199124 km

See also

Source: USGS Earthquake Hazards Program (public domain). Seismologists may still revise the data. Data from Jul 25, 22:12 UTC.