M4.9 Earthquake 27 km ENE of Sur, Oman — October 21, 2023
2023-10-21 06:00:36 UTC (2023-10-21) · approx. 10:00 AM UTC+4 local
Felt by 8 people across nearby locations.
On October 21, 2023 at 06:00 UTC, a magnitude 4.9 shallow crustal earthquake struck 27 km ENE of Sur, Oman, at a depth of 10.0 km and coordinates 22.6691°, 59.7778°. This earthquake was detected by 67 seismic stations with good location accuracy and was assigned a USGS significance rating of 372, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 8 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
59.7778°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Sur, Oman?
The magnitude 4.9 earthquake that struck 27 km ENE of Sur, Oman on October 21, 2023 at 06:00 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 22.6691°, 59.7778°, which is 27 km ENE of Sur, Oman.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us6000lh3y). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 21, 2023). M4.9 Earthquake 27 km ENE of Sur, Oman — October 21, 2023. Retrieved December 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lh3y/