4.5

M4.5 Earthquake 82 km SW of Corinto, NicaraguaFebruary 9, 2023

2023-02-09 19:43:49 UTC (2023-02-09) · approx. 1:43 PM UTC-6 local

MagnitudeM4.5(mb)
Time19:43 UTC1:43 PM UTC-6
Depth40.5 kmshallow crustal
Coordinates11.982°, -87.738°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 9, 2023 at 19:43 UTC, a magnitude 4.5 shallow crustal earthquake struck 82 km SW of Corinto, Nicaragua, at a depth of 40.5 km and coordinates 11.9815°, -87.7379°. This earthquake was detected by 43 seismic stations with good 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.

Map showing earthquake epicenter at 11.98°, -87.74°

Earthquake Details

Magnitude
4.5 mb
Depth
40.5 km
shallow crustal
Location
11.9815°N
-87.7379°E

Technical Information

Event ID
us6000jmui
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
43
Azimuthal Gap
118.0°
Min Station Distance
1.139°
RMS Residual
1.03 sec
Last Updated
2023-04-15 21:39:52 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Corinto, Nicaragua?

The magnitude 4.5 earthquake that struck 82 km SW of Corinto, Nicaragua on February 9, 2023 at 19:43 UTC had a depth of 40.5 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 11.9815°, -87.7379°, which is 82 km SW of Corinto, Nicaragua.

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.

Authoritative source: USGS event page (event ID: us6000jmui). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, February 9, 2023). M4.5 Earthquake 82 km SW of Corinto, NicaraguaFebruary 9, 2023. Retrieved April 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jmui/