M5.3 Earthquake in the Revilla Gigedo Islands region — May 28, 2026
2026-05-28 16:18:09 UTC (2 hours ago) · approx. 9:18 AM UTC-7 local
On May 28, 2026 at 16:18 UTC, a magnitude 5.3 shallow crustal earthquake struck in the Revilla Gigedo Islands region, at a depth of 10.0 km and coordinates 19.6577°, -109.4358°. This earthquake was detected by 54 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 432, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.3 releases seismic energy equivalent to roughly 1 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.7 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-109.4358°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.3 earthquake in the Revilla Gigedo Islands region?
The magnitude 5.3 earthquake that struck in the Revilla Gigedo Islands region on May 28, 2026 at 16:18 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 19.6577°, -109.4358°, which is in the Revilla Gigedo Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.3 earthquakes can continue for days to weeks and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us7000sp4a). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 28, 2026). M5.3 Earthquake in the Revilla Gigedo Islands region — May 28, 2026. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sp4a/