M4.8 Earthquake 75 km SW of Jiquilillo, Nicaragua — September 23, 2021
2021-09-23 22:17:45 UTC (2021-09-23) · approx. 4:17 PM UTC-6 local
On September 23, 2021 at 22:17 UTC, a magnitude 4.8 shallow crustal earthquake struck 75 km SW of Jiquilillo, Nicaragua, at a depth of 36.5 km and coordinates 12.1814°, -87.8393°.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-87.8393°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.8 earthquake near Jiquilillo, Nicaragua?
The magnitude 4.8 earthquake that struck 75 km SW of Jiquilillo, Nicaragua on September 23, 2021 at 22:17 UTC had a depth of 36.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.1814°, -87.8393°, which is 75 km SW of Jiquilillo, Nicaragua.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000fdwr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 23, 2021). M4.8 Earthquake 75 km SW of Jiquilillo, Nicaragua — September 23, 2021. Retrieved December 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000fdwr/