4.1

M4.1 Earthquake 98 km WSW of Masachapa, NicaraguaAugust 14, 2023

2023-08-14 23:43:11 UTC (2023-08-14) · approx. 5:43 PM UTC-6 local

MagnitudeM4.1(mb)
Time23:43 UTC5:43 PM UTC-6
Depth28.0 kmshallow crustal
Coordinates11.573°, -87.393°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 14, 2023 at 23:43 UTC, a magnitude 4.1 shallow crustal earthquake struck 98 km WSW of Masachapa, Nicaragua, at a depth of 28.0 km and coordinates 11.5731°, -87.3934°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 11.57°, -87.39°

Earthquake Details

Magnitude
4.1 mb
Depth
28.0 km
shallow crustal
Location
11.5731°N
-87.3934°E

Technical Information

Event ID
us7000kqfm
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
26
Azimuthal Gap
179.0°
Min Station Distance
1.259°
RMS Residual
0.56 sec
Last Updated
2023-10-27 21:39:05 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Masachapa, Nicaragua?

The magnitude 4.1 earthquake that struck 98 km WSW of Masachapa, Nicaragua on August 14, 2023 at 23:43 UTC had a depth of 28.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000kqfm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 14, 2023). M4.1 Earthquake 98 km WSW of Masachapa, NicaraguaAugust 14, 2023. Retrieved October 27, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kqfm/