4.3

M4.3 Earthquake 36 km NW of Tamarindo, Costa RicaOctober 13, 2024

2024-10-13 22:05:36 UTC (2024-10-13) · approx. 4:05 PM UTC-6 local

MagnitudeM4.3(mb)
Time22:05 UTC4:05 PM UTC-6
Depth18.8 kmshallow crustal
Coordinates10.493°, -86.115°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 13, 2024 at 22:05 UTC, a magnitude 4.3 shallow crustal earthquake struck 36 km NW of Tamarindo, Costa Rica, at a depth of 18.8 km and coordinates 10.4931°, -86.1153°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 10.49°, -86.12°

Earthquake Details

Magnitude
4.3 mb
Depth
18.8 km
shallow crustal
Location
10.4931°N
-86.1153°E

Technical Information

Event ID
us6000nyhn
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
33
Azimuthal Gap
184.0°
Min Station Distance
0.860°
RMS Residual
0.67 sec
Last Updated
2024-12-23 15:47:28 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Tamarindo, Costa Rica?

The magnitude 4.3 earthquake that struck 36 km NW of Tamarindo, Costa Rica on October 13, 2024 at 22:05 UTC had a depth of 18.8 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000nyhn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, October 13, 2024). M4.3 Earthquake 36 km NW of Tamarindo, Costa RicaOctober 13, 2024. Retrieved December 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nyhn/