M5.1 Shallow Earthquake Recorded Near Azores Islands, Portugal

GEOFON GFZ reports M5.1 near Azores Islands, Portugal, with a 10.0 km catalog depth.

Published 2026-10-21T06:54:49.069Z

The event began at Tue, 20 Oct 2026 18:07:19 GMT. GEOFON GFZ reports magnitude 5.1, 10.0 km catalog depth, and coordinates 37.936, -26.277.

The catalog location label is Azores Islands, Portugal; no separate nearest-city field was supplied with this solution. By catalog depth, this is a shallow event. The magnitude-derived energy estimate is 2.82e+12 joules, or about 674 tons of TNT equivalent; that calculation describes source energy, not local damage.

The current catalog entry does not include a public felt-report count. No separate intensity or catalog-significance detail is available from this provider record. No official casualty or damage statement is attached to the normalized event evidence.

GEOFON GFZ has not supplied a review status in the normalized record. No station-count, phase-count, residual, gap, or uncertainty fields were supplied in the normalized record. 1 alternate network solution is retained for comparison.

The provider record does not carry a tsunami flag at publication time. Magnitude, depth, and location can change as monitoring networks add observations and review the solution.