M4.5 Earthquake 49 km WSW of Saint George's, Grenada — October 24, 2022
2022-10-24 20:04:57 UTC (2022-10-24) · approx. 4:04 PM UTC-4 local
On October 24, 2022 at 20:04 UTC, a magnitude 4.5 intermediate depth earthquake struck 49 km WSW of Saint George's, Grenada, at a depth of 140.3 km and coordinates 11.9472°, -62.1935°. This earthquake was detected by 34 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-62.1935°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Saint George's, Grenada?
The magnitude 4.5 earthquake that struck 49 km WSW of Saint George's, Grenada on October 24, 2022 at 20:04 UTC had a depth of 140.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 11.9472°, -62.1935°, which is 49 km WSW of Saint George's, Grenada.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000ikyd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 24, 2022). M4.5 Earthquake 49 km WSW of Saint George's, Grenada — October 24, 2022. Retrieved January 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ikyd/