M 5.0 Earthquake in Mariana Islands Region October 2026
A magnitude 5.0 earthquake was recorded by USGS near Mariana Islands region. On the USGS Earthquake Hazards Program scale, M5.0 is classified "Moderate". Among the 1,834 earthquake reports Areazine has published, this M5.0 event ranks stronger than 55% of them (rank #644 by magnitude).
30 seconds on this earthquake report
- Magnitude
- M 5.0
- USGS class
- Moderate
- Location
- Mariana Islands region
- Archive rank
- #644 of 1,834
- Source
- USGS
- Published
- September 23, 2026
Sits above 55% of the 1,834 earthquakes in the archive by magnitude; 643 ran stronger.
Record status: a snapshot from USGS, not a final record. Check USGS's own event page for aftershocks and any later revision to the magnitude shown here.
What Happened
A M 5.0 mb earthquake struck the Mariana Islands region on 2026-10-24 at 05:01:51 UTC. The event was recorded at coordinates 21.6622 latitude, 143.0239 longitude, with a depth of 306.016 km. This depth classifies the quake as deep (greater than 70 km).
Location Details
The earthquake was located in the Mariana Islands region. Its coordinates are 21.6622 N, 143.0239 E. At 306 km depth, the event occurred well below the surface in the deep earthquake category.
Impact Assessment
No felt reports were recorded for this event. There was no tsunami advisory (tsunami value: 0). No alert level was assigned.
What You Should Know
Earthquakes of this magnitude are classified as moderate and can cause damage to poorly constructed buildings. Aftershocks remain possible following any seismic event.
Source
https://earthquake.usgs.gov/earthquakes/eventpage/us6000tx38 (USGS)
Original source: USGS Official Notice ↗
Related Earthquakes
All Earthquakes →Nationwide notices with similar length or severity timing 8
Two cross-category peer sets, both computed from Areazine's own archive: notices with a similar body length, and notices near the same severity and agency date. These are drawn from other categories, not the same-feed Related list above.
Similar body length
Nearest notices by article body length (902 characters here).
Similar severity timing
Same severity (medium) notices issued closest in time to September 23, 2026.
Questions & Answers
Common questions about this USGS earthquake report.